DiseasesChemicals and DrugsPhenomena and Processes
Hydrogen SulfideCystathionine gamma-LyaseSulfidesCystathionine beta-SynthaseHydrogenHydrogen BondingHydrogen PeroxideAlkynesThiosulfatesOrganothiophosphorus CompoundsSulfurSulfurtransferasesSulfhemoglobinCysteineThioamidesSulfur CompoundsAminooxyacetic AcidCysteine SynthaseKATP ChannelsAir PollutantsOxidation-ReductionSulfitesEncephalomalaciaSulfatesSulfite Reductase (NADPH)Halitosis
Hydrogen Sulfide
A flammable, poisonous gas with a characteristic odor of rotten eggs. It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. (From Merck Index, 11th ed)
Cystathionine gamma-Lyase
A multifunctional pyridoxal phosphate enzyme. In the final step in the biosynthesis of cysteine it catalyzes the cleavage of cystathionine to yield cysteine, ammonia, and 2-ketobutyrate. EC 4.4.1.1.
Sulfides
Chemical groups containing the covalent sulfur bonds -S-. The sulfur atom can be bound to inorganic or organic moieties.
Cystathionine beta-Synthase
A multifunctional pyridoxal phosphate enzyme. In the second stage of cysteine biosynthesis it catalyzes the reaction of homocysteine with serine to form cystathionine with the elimination of water. Deficiency of this enzyme leads to HYPERHOMOCYSTEINEMIA and HOMOCYSTINURIA. EC 4.2.1.22.
Hydrogen
The first chemical element in the periodic table. It has the atomic symbol H, atomic number 1, and atomic weight [1.00784; 1.00811]. It exists, under normal conditions, as a colorless, odorless, tasteless, diatomic gas. Hydrogen ions are PROTONS. Besides the common H1 isotope, hydrogen exists as the stable isotope DEUTERIUM and the unstable, radioactive isotope TRITIUM.
Hydrogen Bonding
A low-energy attractive force between hydrogen and another element. It plays a major role in determining the properties of water, proteins, and other compounds.
Hydrogen Peroxide
A strong oxidizing agent used in aqueous solution as a ripening agent, bleach, and topical anti-infective. It is relatively unstable and solutions deteriorate over time unless stabilized by the addition of acetanilide or similar organic materials.
Alkynes
Hydrocarbons with at least one triple bond in the linear portion, of the general formula Cn-H2n-2.
Thiosulfates
Inorganic salts of thiosulfuric acid possessing the general formula R2S2O3.
Organothiophosphorus Compounds
Compounds containing carbon-phosphorus bonds in which the phosphorus component is also bonded to one or more sulfur atoms. Many of these compounds function as CHOLINERGIC AGENTS and as INSECTICIDES.
Sulfur
An element that is a member of the chalcogen family. It has an atomic symbol S, atomic number 16, and atomic weight [32.059; 32.076]. It is found in the amino acids cysteine and methionine.
Sulfurtransferases
Enzymes which transfer sulfur atoms to various acceptor molecules. EC 2.8.1.
Sulfhemoglobin
Cysteine
A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.
Thioamides
Organic compounds containing the radical -CSNH2.
Sulfur Compounds
Inorganic or organic compounds that contain sulfur as an integral part of the molecule.
Aminooxyacetic Acid
A compound that inhibits aminobutyrate aminotransferase activity in vivo, thereby raising the level of gamma-aminobutyric acid in tissues.
Cysteine Synthase
An enzyme that catalyzes the biosynthesis of cysteine in microorganisms and plants from O-acetyl-L-serine and hydrogen sulfide. This enzyme was formerly listed as EC 4.2.99.8.
KATP Channels
Heteromultimers of Kir6 channels (the pore portion) and sulfonylurea receptor (the regulatory portion) which affect function of the HEART; PANCREATIC BETA CELLS; and KIDNEY COLLECTING DUCTS. KATP channel blockers include GLIBENCLAMIDE and mitiglinide whereas openers include CROMAKALIM and minoxidil sulfate.
Air Pollutants
Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or material. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS.
Oxidation-Reduction
A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471).
Sulfites
Inorganic salts of sulfurous acid.
Encephalomalacia
Softening or loss of brain tissue following CEREBRAL INFARCTION; cerebral ischemia (see BRAIN ISCHEMIA), infection, CRANIOCEREBRAL TRAUMA, or other injury. The term is often used during gross pathologic inspection to describe blurred cortical margins and decreased consistency of brain tissue following infarction. Multicystic encephalomalacia refers to the formation of multiple cystic cavities of various sizes in the cerebral cortex of neonates and infants following injury, most notably perinatal hypoxia-ischemic events. (From Davis et al., Textbook of Neuropathology, 2nd ed, p665; J Neuropathol Exp Neurol, 1995 Mar;54(2):268-75)
Sulfates
Inorganic salts of sulfuric acid.
Sulfite Reductase (NADPH)
A NADPH-dependent oxidase that reduces hydrogen sulfite to HYDROGEN SULFIDE. It is found in many microoganisms.
Halitosis
An offensive, foul breath odor resulting from a variety of causes such as poor oral hygiene, dental or oral infections, or the ingestion of certain foods.

Physiological and morphological observations on Thiovulum sp. (1/815)

Cell suspensions of Thiovulum sp., collected from enrichment cultures, were grown, maintained, and harvested for periods up to 7 months. In open-flow cultures run with aerated seawater, a continuous supply of hydrogen sulfide was provided by diffusion through a semipermeable membrane from either a live culture of Desulfovibrio esturaii, neutralized sodium sulfide, or a N2-H2S gas mixture. Attempts to grow Thiovulum in pure culture failed despite variation in concentrations of dissolved oxygen and hydrogen sulfide in stratified as well as in completely mixed systems. Uptake of 14CO2 and some organic compounds by purified cell suspensions was measured, and values were corrected for the activity of heterotrophic as well as autotrophic contaminants as determined in control experiments. Cell populations exhibited maximum uptake activities during formation of the characteristic veils. Substantial uptake of CO2 in air-saturated seawater was coincident with an optimal concentration of hydrogen sulfide of about 1 mM. Glutamate and a selection of vitamins (B12M biotin, and thiamine) did not significantly affect the uptake of CO2. No substantial uptake of carbon from acetate, glutamate, mannitol, and Casamino Acids was found. Within the range of error indicated, the data are consistent with acceptance of a chemolithotrophic nature of Thiovulum.  (+info)

Roots as a site of hydrogen sulfide uptake in the hydrocarbon seep vestimentiferan Lamellibrachia sp. (2/815)

Vestimentiferan tubeworms have no mouth or gut, and the majority of their nutritional requirements are provided by endosymbiotic bacteria that utilize hydrogen sulfide oxidation to fix CO(2) into organic molecules. It has been assumed that all vestimentiferans obtain the sulfide, O(2) and CO(2) needed by the bacteria across the plume (gill) surface, but some live in locations where very little sulfide is available in the sea water surrounding the plume. We propose that at least some of these vestimentiferans can grow a posterior extension of their body and tube down into the sea-floor sediment, and that they can use this extension, which we call the 'root', to take up sulfide directly from the interstitial water. In this study of the vestimentiferan Lamellibrachia sp., found at hydrocarbon seeps in the Gulf of Mexico at depths of approximately 700 m, we measured seawater and interstitial sulfide concentrations in the hydrocarbon seep habitat, determined the structural characteristics of the root tube using transmission electron microscopy, characterized the biochemical composition of the tube wall, and measured the sulfide permeability of the root tube. We found that, while the sulfide concentration is less than 1 (micro)mol l(-)(1) in the sea water surrounding the gills, it can be over 1.5 mmol l(-)(1) at a depth of 10-25 cm in sediment beneath tubeworm bushes. The root tube is composed primarily of giant (&bgr;)-chitin crystallites (12-30 % of total mass) embedded in a protein matrix (50 % of total mass). Root tubes have a mean diameter of 1.4 mm, a mean wall thickness of 70 (micro)m and can be over 20 cm long. The tubeworm itself typically extends its body to the distal tip of the root tube. The root tube wall was quite permeable to sulfide, having a permeability coefficient at 20 degrees C of 0. 41x10(-)(3 )cm s(-)(1), with root tube being 2.5 times more permeable to sulfide than trunk tube of the same diameter. The characteristics of the root suggest that it reaches down to the higher sulfide levels present in the deeper sediment and that it functions to increase the surface area available for sulfide uptake in a manner analogous to a respiratory organ.  (+info)

Long-term effects on the olfactory system of exposure to hydrogen sulphide. (3/815)

OBJECTIVE: To study chronic effects of hydrogen sulphide (H2S) on cranial nerve I (nervi olfactorii), which have been only minimally described. METHODS: Chemosensations (smell and taste) were evaluated in eight men who complained of continuing dysfunction 2-3 years after the start of occupational exposure to H2S. Various bilateral (both nostrils) and unilateral (one nostril at a time) odour threshold tests with standard odorants as well as the Chicago smell test, a three odour detection and identification test and the University of Pennsylvania smell identification test, a series of 40 scratch and sniff odour identification tests were administered. RESULTS: Six of the eight patients showed deficits of various degrees. Two had normal scores on objective tests, but thought that they continued to have problems. H2S apparently can cause continuing, sometimes unrecognised olfactory deficits. CONCLUSION: Further exploration into the extent of such problems among workers exposed to H2S is warranted.  (+info)

On the occurrence of anoxic microniches, denitrification, and sulfate reduction in aerated activated sludge. (4/815)

A combination of different methods was applied to investigate the occurrence of anaerobic processes in aerated activated sludge. Microsensor measurements (O(2), NO(2)(-), NO(3)(-), and H(2)S) were performed on single sludge flocs to detect anoxic niches, nitrate reduction, or sulfate reduction on a microscale. Incubations of activated sludge with (15)NO(3)(-) and (35)SO(4)(2-) were used to determine denitrification and sulfate reduction rates on a batch scale. In four of six investigated sludges, no anoxic zones developed during aeration, and consequently denitrification rates were very low. However, in two sludges anoxia in flocs coincided with significant denitrification rates. Sulfate reduction could not be detected in any sludge in either the microsensor or the batch investigation, not even under short-term anoxic conditions. In contrast, the presence of sulfate-reducing bacteria was shown by fluorescence in situ hybridization with 16S rRNA-targeted oligonucleotide probes and by PCR-based detection of genes coding for the dissimilatory sulfite reductase. A possible explanation for the absence of anoxia even in most of the larger flocs might be that oxygen transport is not only diffusional but enhanced by advection, i.e., facilitated by flow through pores and channels. This possibility is suggested by the irregularity of some oxygen profiles and by confocal laser scanning microscopy of the three-dimensional floc structures, which showed that flocs from the two sludges in which anoxic zones were found were apparently denser than flocs from the other sludges.  (+info)

Detoxification of hydrogen sulfide and methanethiol in the cecal mucosa. (5/815)

Colonic bacteria liberate large quantities of the highly toxic gases hydrogen sulfide (H(2)S) and methanethiol (CH(3)SH). The colonic mucosa presumably has an efficient means of detoxifying these compounds, which is thought to occur through methylation of H(2)S to CH(3)SH and CH(3)SH to dimethylsulfide (CH(3)SCH(3)). We investigated this detoxification pathway by incubating rat cecal mucosal homogenates with gas containing H(2)S, CH(3)SH, or CH(3)SCH(3). Neither CH(3)SH nor CH(3)SCH(3) was produced during H(2)S catabolism, whereas catabolism of CH(3)SH liberated H(2)S but not CH(3)SCH(3). Thus, H(2)S and CH(3)SH are not detoxified by methylation to CH(3)SCH(3). Rather, CH(3)SH is demethylated to H(2)S, and H(2)S is converted to nonvolatile metabolites. HPLC analysis of the homogenate showed the metabolite to be primarily thiosulfate. Analysis of cecal venous blood obtained after intracecal instillation of H(2)(35)S revealed that virtually all absorbed H(2)S had been oxidized to thiosulfate. The oxidation rate of H(2)S by colonic mucosa was 10,000 times greater than the reported methylation rate. Conversion to thiosulfate appears to be the mechanism whereby the cecal mucosa protects itself from the injurious effects of H(2)S and CH(3)SH, and defects in this detoxification possibly could play a role in colonic diseases such as ulcerative colitis.  (+info)

The contribution of sulphate reducing bacteria and 5-aminosalicylic acid to faecal sulphide in patients with ulcerative colitis. (6/815)

BACKGROUND: Butyrate oxidation within the colonocyte is selectively inhibited by hydrogen sulphide, reproducing the metabolic lesion observed in active ulcerative colitis. AIMS: To study generation of hydrogen sulphide by sulphate reducing bacteria (SRB) and the effects of 5-aminosalicylic acid (5-ASA) in patients with ulcerative colitis in order to identify a role of this noxious agent in pathogenesis. PATIENTS: Fresh faeces were obtained from 37 patients with ulcerative colitis (23 with active disease) and 16 healthy controls. METHODS: SRB were enumerated from fresh faecal slurries and measurements made of sulphate reducing activity, and sulphate and hydrogen sulphide concentrations. The effect of 5-ASA on hydrogen sulphide production was studied in vitro. RESULTS: All controls and patients with active ulcerative colitis carried SRB and total viable counts were significantly related to the clinical severity grade. SRB were of two distinct types: rapidly growing strains (desulfovibrios) which showed high sulphate reduction rates, present in 30% of patients with ulcerative colitis and 44% of controls; and slow growing strains which had little activity. In vitro, 5-ASA inhibited sulphide production in a dose dependent manner; in patients with ulcerative colitis not on these drugs faecal sulphide was significantly higher than in controls (0.55 versus 0.25 mM, p=0.027). CONCLUSIONS: Counts and carriage rates of SRB in faeces of patients with ulcerative colitis are not significantly different from those in controls. SRB metabolism is not uniform between strains and alternative sources of hydrogen sulphide production exist in the colonic lumen which may be similarly inhibited by 5-ASA. The evidence for hydrogen sulphide as a metabolic toxin in ulcerative colitis remains circumstantial.  (+info)

Mucin secretion is modulated by luminal factors in the isolated vascularly perfused rat colon. (7/815)

BACKGROUND: Mucins play an important protective role in the colonic mucosa. Luminal factors modulating colonic mucus release have been not fully identified. AIM: To determine the effect of some dietary compounds on mucus discharge in rat colon. METHODS: An isolated vascularly perfused rat colon model was used. Mucus secretion was induced by a variety of luminal factors administered as a bolus of 1 ml for 30 minutes in the colonic loop. Mucin release was evaluated using a sandwich enzyme linked immunosorbent assay supported by histological analysis. RESULTS: The three dietary fibres tested in this study (pectin, gum arabic, and cellulose) did not provoke mucus secretion. Luminal administration of sodium alginate (an algal polysaccharide used as a food additive) or ulvan (a sulphated algal polymer) induced a dose dependent increase in mucin discharge over the concentration range 1-25 mg/l (p<0.05 for 25 mg/l alginate and p<0.05 for 10 and 25 mg/l ulvan). Glucuronic acid and galacturonic acid, which are major constituents of a variety of fibres, produced significant mucin secretion (p<0.05). Hydrogen sulphide and mercaptoacetate, two sulphides produced in the colonic lumen by microbial fermentation of sulphated polysaccharides, did not modify mucin secretion. Among the short chain fatty acids, acetate (5-100 mM) induced a dose dependent release of mucus (p<0.05 for 100 mM acetate). Interestingly, butyrate at a concentration of 5 mM produced colonic mucin secretion (p<0.05), but increasing its concentration to 100 mM provoked a gradual decrease in mucus discharge. Propionate (5-100 mM) did not induce mucin release. Several dietary phenolic compounds (quercetin, epicatechin, resveratrol) did not provoke mucus discharge. CONCLUSIONS: Two algal polysaccharides (alginate and ulvan), two uronic acids (glucuronic acid and galacturonic acid), and the short chain fatty acids acetate and butyrate induce mucin secretion in rat colon. Taken together, these data suggest that some food constituents and their fermentation products may regulate the secretory function of colonic goblet cells.  (+info)

Improved plating media for the detection of Salmonella species with typical and atypical hydrogen sulfide production. (8/815)

The Salmonella detection ability of 2 surfactant-supplemental media, xylose-lysine-tergitol (Nia-proof) 4 (XLT4) and Miller-Mallinson (MM) agar, was compared against that of several commonly used plating media. XLT4 and MM appeared to be the most efficient in detecting Salmonella in meat products and food animal environments. MM was superior to XLT4 in detecting those increasingly more prevalent strains of Salmonella possessing weak to ultraweak H2S production characteristics.  (+info)

Antioxidants | Free Full-Text | The Effect of Hydrogen Sulfide on Different Parameters of Human Plasma in the Presence or...Antioxidants | Free Full-Text | The Effect of Hydrogen Sulfide on Different Parameters of Human Plasma in the Presence or...
The main aim of the study is to examine the effect of sodium hydrosulfide (NaHS), an H2S donor, on the oxidative stress in human plasma in vitro. It also examined the effects of very high concentrations of exogenous hydrogen sulfide on the hemostatic parameters (coagulation and fibrinolytic activity) of human plasma. Plasma was incubated for 5–30 min with different concentrations of NaHS from 0.01 to 10 mM. Following this, lipid peroxidation was measured as a thiobarbituric acid reactive substance (TBARS) concentration and the oxidation of amino acid residues in proteins was measured by determining the amounts of thiol groups and carbonyl groups. Hydrogen peroxide (H2O2) and the hydroxyl radical generating oxidation system (Fe/H2O2) were used as oxidative stress inducers. Hemostatic factors, such as the maximum velocity of clot formation, fibrin lysis half-time, the activated partial thromboplastin time (APTT), thrombin time (TT), and international normalized ratio (INR), were estimated. Changes
https://www.mdpi.com/2076-3921/8/12/610
Hydrogen Sulfide (H2S) Program
Please click your Back button to return to the previous Upgrade Page) Hydrogen Sulfide (H2S) Safety Program Background: Hydrogen sulfide presents a potential hazard to workers at the work site. It usually occurs as an unwanted by-product and can result in worker exposure in many different industries or occupations. To ensure protection against exposure to hydrogen sulfide, both workers and employers must be aware of its properties, how it affects the body and what to do in emergency situations. The Safety and Health Manager shall ensure that all personnel who will be working at the job site will be properly trained in Hydrogen sulfide awareness and contingency procedures. Occurrence of Hydrogen Sulfide: Hydrogen sulfide exposures usually occur during the drilling for or production of natural gas, crude oil and petroleum products. Hydrogen sulfide is also produced by the putrefication of organic matter and may accumulate in sewers, sewage treatment plants or hide storage pits in the tanning ...
https://www.oshasafety.com/H2S.htm
Role of Hydrogen Sulfide as a Gasotransmitter in Modulating Contractile Activity of Circular Muscle of Rat Jejunum<...
TY - JOUR. T1 - Role of Hydrogen Sulfide as a Gasotransmitter in Modulating Contractile Activity of Circular Muscle of Rat Jejunum. AU - Nagao, Munenori. AU - Duenes, Judith A.. AU - Sarr, Michael G.. PY - 2012/2. Y1 - 2012/2. N2 - Aim: Our aim was to determine mechanisms of action of the gasotransmitter hydrogen sulfide (H 2S) on contractile activity in circular muscle of rat jejunum. Methods: Jejunal circular muscle strips were prepared to measure isometric contractions. Effects of sodium hydrosulfide (NaHS), a H 2S donor, were evaluated on spontaneous contractile activity and after pre-contraction with bethanechol. l-Cysteine was evaluated as an endogenous H 2S donor. We evaluated extrinsic nerves, enteric nervous system, visceral afferent nerves, nitric oxide, K + ATP and K + CA channels, and myosin light chain phosphatase on action of H 2S using non-adrenergic/non-cholinergic conditions, tetrodotoxin, capsaicin, l-N G-nitro arginine (l-NNA), glibenclamide, apamin, and calyculin A, ...
https://mayoclinic.pure.elsevier.com/en/publications/role-of-hydrogen-sulfide-as-a-gasotransmitter-in-modulating-contr
Hydrogen Sulfide in DrywallHydrogen Sulfide in Drywall
The discourse relative to the legal responsibility for using defective drywall and to the nature of the chemicals which emit the hydrogen sulfide will undoubtedly continue for a long time. However, the basic fact that hydrogen sulfide is toxic and exposure to it is harmful in not questioned. Therefore, it is incumbent on all the responsible parties to immediately stop the exposure of people to HYDROGEN SULFIDE to prevent recurring harm to their health and damage to their property.. The toxicity of hydrogen sulfide is manifested in two different mechanisms: A. HYDROGEN SULFIDE reacts with the iron in the blood and depletes it and thus can have negative impact on the respiratory function of the body and the transfer of oxygen. This effect is more dangerous when the exposed people are old, children or infants, pregnant woman and people with respiratory issues, and, B. Chronic exposure even to minute concentrations of HYDROGEN SULFIDE (and sulfur oxides) reduce the resistance of the lungs to viral ...
https://www.chemsee.com/commercial/toxic-gas/resources/hydrogen-sulfide-in-drywall/
北京大学医学部机构知识库([email protected]): Endogenous hydrogen sulfide reduces airway inflammation and remodeling in a rat model of asthma
Endogenous hydrogen sulfide (H(2)S) is hypothesized to have an important role in systemic inflammation. We investigated if endogenous H(2)S may be a crucial mediator in airway inflammation and airway remodeling in a rat model of asthma and if endogenous H(2)S may exert its anti-inflammatory effect by inhibiting inducible nitric oxide synthase (iNOS)/NO pathway. Cystathionine-gamma-lyase (CSE; a H(2)S-synthesizing enzyme) was mainly expressed in airway and vascular smooth muscle cells in rat lung tissue. Levels of endogenous H(2)S was decreased in pulmonary tissue in ovalbumin (OVA)-treated rats. Exogenous administration of NaHS alleviated airway inflammation and airway remodeling: peak expiratory flow (PEF) increased, goblet cell hyperplasia and collagen deposition score decreased, with decreased total cells recovered from bronchoalveolar fluid (BALF) and influx of eosinophils and neutrophils. The H(2)S levels of serum and lung tissue were positively correlated with PEF and negatively correlated ...
http://ir.bjmu.edu.cn/handle/400002259/59159
Hydrogen sulfide donor micelles protect cardiomyocytes from ischemic cell death<...
TY - JOUR. T1 - Hydrogen sulfide donor micelles protect cardiomyocytes from ischemic cell death. AU - Takatani-Nakase, T.. AU - Katayama, M.. AU - Matsui, C.. AU - Hanaoka, K.. AU - Van Der Vlies, A. J.. AU - Takahashi, K.. AU - Nakase, I.. AU - Hasegawa, U.. N1 - Funding Information: This work was supported in part by JSPS KAKENHI (JP16H02612 for I. N.). The manuscript preparation was assisted by Kayo Hirano (Osaka Prefecture University).. PY - 2017. Y1 - 2017. N2 - Hydrogen sulfide, an important gaseous signaling molecule in the human body, is known to protect cardiomyocytes from ischemia, a condition characterized by insufficient oxygen supply to the cells. Here we show that a nanosized H2S donor micelle releases H2S intracellularly and prevents cardiomyocyte apoptosis in an in vitro ischemia model.. AB - Hydrogen sulfide, an important gaseous signaling molecule in the human body, is known to protect cardiomyocytes from ischemia, a condition characterized by insufficient oxygen supply to the ...
https://pennstate.pure.elsevier.com/en/publications/hydrogen-sulfide-donor-micelles-protect-cardiomyocytes-from-ische
Good-Rite® NaSH (Sodium Hydrosulfide) Sodium Hydrosulfide - Emerald Kalama Chemical
Good-Rite® Sodium Hydrosulfide (NaSH) is a clear, aqueous solution that is used as a depilotory (de-hairing) agent in the tanning industry.
https://emeraldkalama.com/product/good-rite-nash/?tab=msds_tab
Hydrogen sulfide: The next anti-ag... ( Hydrogen sulfide (H2S) may play a wi...)Hydrogen sulfide: The next anti-ag... ( Hydrogen sulfide (H2S) may play a wi...)
...Hydrogen sulfide (H2S) may play a wide-ranging role in staving off agi... H2S has been gaining increasing attention as an important endogenous ...Hydrogen sulfide is produced within the human body and has a variety ...The gene klotho which appears to be upregulated by hydrogen sulfide...,Hydrogen,sulfide:,The,next,anti-aging,agent?,biological,biology news articles,biology news today,latest biology news,current biology news,biology newsletters
http://www.bio-medicine.org/biology-news-1/Hydrogen-sulfide-3A-The-next-anti-aging-agent-3F-28542-1/
Effect of hydrogen sulfide donors on intraocular pressure in rabbits<...
TY - JOUR. T1 - Effect of hydrogen sulfide donors on intraocular pressure in rabbits. AU - Salvi, Ankita. AU - Bankhele, Pratik. AU - Jamil, Jamal. AU - Chitnis, Madhura Kulkarni. AU - Njie-Mbye, Ya Fatou. AU - Ohia, Sunny E.. AU - Opere, Catherine A.. N1 - Funding Information: The project described was supported by Grant Number G20RR024001 from the National Center for Research Resources. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Center for Research Resources or the National Institutes of Health. This project was also supported by Grant Number 1R15EY022215-01 from the National Institute of Health, National Eye Institute. Publisher Copyright: © Mary Ann Liebert, Inc.. PY - 2016/7/1. Y1 - 2016/7/1. N2 - Purpose: In this study, we investigated the effect of a slow-releasing hydrogen sulfide (H2S) donor, GYY 4137, on intraocular pressure (IOP) in normotensive rabbits. Furthermore, we compared the IOP-lowering action ...
https://creighton.pure.elsevier.com/en/publications/effect-of-hydrogen-sulfide-donors-on-intraocular-pressure-in-rabb
Endogenous hydrogen sulfide contributes to the cardioprotection by metabolic inhibition preconditioning in the rat ventricular...Endogenous hydrogen sulfide contributes to the cardioprotection by metabolic inhibition preconditioning in the rat ventricular...
The possible role of hydrogen sulfide (H2S) in cardioprotection was investigated in isolated rat ventricular myocytes exposed to severe metabolic inhibition (MI) in glucose-free buffer containing 2-deoxy-D-glucose (2-DOG), an inhibitor of glycolysis. Pretreatment (30:min) with NaHS (a H 2S donor) at concentrations of 10-5 to 10-4 mol/L caused a concentration related increase in cell viability and the ratio of rod-shaped cells. A time course study showed that NaHS-induced cardioprotection occurred in 2 time windows (~1:h and 16-28:h). To observe whether endogenous H2S may be involved in the delayed cardioprotection response of IP, DL-propargylglycine (PAG) and β-cyano-L-alanine (BCA; two inhibitors of H2S biosynthesis) were used. Both drugs significantly attenuated the cardioprotection produced by MI using cell viability, cellular injury index, and electrically-induced [Ca2+]i transients as end-points. These data suggest that endogenous H2S plays an important role in the cardioprotection ...
https://scholarbank.nus.edu.sg/handle/10635/27277
Frontiers | The Role of Hydrogen Sulfide on Cardiovascular Homeostasis: An Overview with Update on Immunomodulation |...Frontiers | The Role of Hydrogen Sulfide on Cardiovascular Homeostasis: An Overview with Update on Immunomodulation |...
Hydrogen sulfide (H2S), the third endogenous gaseous signaling molecule alongside nitric oxide (NO) and carbon monoxide, is synthesized by multiple enzymes in cardiovascular system. Similar to other gaseous mediators, H2S has demonstrated a variety of biological activities, including anti-oxidative, anti-apoptotic, pro-angiogenic, vasodilating capacities and endothelial NO synthase modulating activity, and regulates a wide range of pathophysiological processes in cardiovascular disorders. However, the underlying mechanisms by which H2S mediates cardiovascular homeostasis are not fully understood. This review focuses on the recent progress on functional and mechanistic aspects of H2S in the inflammatory and immunoregulatory processes of cardiovascular disorders, importantly myocardial ischemia, heart failure, and atherosclerosis. Moreover, we highlight the challenges for developing H2S-based therapy to modulate the pathological processes in cardiovascular diseases. A better understanding of the
https://www.frontiersin.org/articles/10.3389/fphar.2017.00686/full
Signaling effects of sodium hydrosulfide in healthy donor peripheral blood mononuclear cellsSignaling effects of sodium hydrosulfide in healthy donor peripheral blood mononuclear cells
Hydrogen sulfide (H2S) is an endogenous gasotransmitter in human physiology and inflammatory disease, however, with limited knowledge of how signal transduction pathways are involved in immune cells. To examine the effects of sulfide on relevant intracellular signaling in human peripheral blood mononuclear cells (PBMCs), we stimulated healthy donor PBMCs with sodium hydrosulfide (NaHS, 1-1000 μM) to mimic H2S stimulation, and analyzed phosphorylation of p38 mitogen activated protein kinase (MAPK) (pT180/pY182), NF-κB p65 (pS529), Akt (pS473) and CREB/ATF1 (pS133/pS63) with flow and mass cytometry. In contrast to transient effects in subsets of lymphocytes, classical monocytes demonstrated sustained phosphorylation of p38, Akt and CREB/ATF1. NaHS induced calcium dependent phosphorylation of p38, Akt and CREB, but not NF-κB, and the phosphorylation of Akt was partly dependent on p38, indicative of p38-Akt crosstalk. Attenuation of these effects by molecules targeting p38 and Hsp90 indicated ...
http://bora.uib.no/handle/1956/15243
8-Mercapto-Cyclic GMP Mediates Hydrogen Sulfide-Induced Stomatal Closure in Arabidopsis<...
TY - JOUR. T1 - 8-Mercapto-Cyclic GMP Mediates Hydrogen Sulfide-Induced Stomatal Closure in Arabidopsis. AU - Honda, Kenji. AU - Yamada, Naotaka. AU - Yoshida, Riichiro. AU - Ihara, Hideshi. AU - Sawa, Tomohiro. AU - Akaike, Takaaki. AU - Iwai, Sumio. PY - 2015/1/1. Y1 - 2015/1/1. N2 - Plants are exposed to hydrogen sulfide (H2S) both exogenously, as it exists as a pollutant gas in the environment, and endogenously, as it is synthesized in cells. H2S has recently been found to function as a gaseous signaling molecule, but its signaling cascade remains unknown. Here, we examined H2S-mediated guard cell signaling in Arabidopsis. The H2S donor GYY4137 (morpholin-4-ium-4-methoxyphenyl [morpholino] phosphinodithioate) induced stomatal closure, which peaked after 150 min at 1 μM or after 90 min at 10 and 100 μM. After reaching maximal closure, stomatal apertures gradually increased in size in response to further exposure to GYY4137. GYY4137 induced nitric oxide (NO) generation in guard cells, and ...
https://kyushu-u.pure.elsevier.com/en/publications/8-mercapto-cyclic-gmp-mediates-hydrogen-sulfide-induced-stomatal-
Hydrogen Sulfide Sensor H2S-A1 - Electrochemical Gas Sensors - Apollo Co., Ltd
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http://www.apollounion.com/en/p-Hydrogen-Sulfide-Sensor-H2S-A1-98.html
Influence of Hydrogen Sulfide on Proppants Performance | SPE Annual Caspian Technical Conference | OnePetroInfluence of Hydrogen Sulfide on Proppants Performance | SPE Annual Caspian Technical Conference | OnePetro
Fast production decline is a well-known negative phenomenon after some hydraulic fracturing jobs. Reasonably, it is usually attributed to the fracture and reservoir parameters. One of the potential fracture parameters that might contribute to the production decline is conductivity of the proppant pack; this conductivity can be damaged by poor proppant condition. In this study, we investigate the influence of hydrogen sulfide (H2S) on the proppant conditions and performance.. The experimental study assessed the influence of H2S on proppant properties. The study analyzed not only the crush strength and sieve size alterations after exposure of proppant to high H2S content, but also the changes in proppant pack conductivity. Because the proppant pack conductivity is directly related to fluid flow within the fracture, this parameter should be considered as a key parameter for estimation of H2S influence on proppant pack performance.. According to test results, no significant influence of the H2S was ...
https://onepetro.org/SPECTCE/proceedings-abstract/18CTCE/2-18CTCE/D023S008R002/234966
Hydrogen sulfide as a mediator of human corpus cavernosum smooth-muscle relaxation - StrathprintsHydrogen sulfide as a mediator of human corpus cavernosum smooth-muscle relaxation - Strathprints
Hydrogen sulfide (H2S) is synthesized by 2 enzymes, cystathionine beta-synthase (CBS) and cystathionine gamma-lyase (CSE). L-Cysteine (L-Cys) acts as a natural substrate for the synthesis of H2S. Human penile tissue possesses both CBS and CSE, and tissue homogenates efficiently convert L-Cys to H2S. CBS and CSE are localized in the muscular trabeculae and the smooth-muscle component of the penile artery, whereas CSE but not CBS is also expressed in peripheral nerves. Exogenous H2S [sodium hydrogen sulfide (NaHS)] or L-Cys causes a concentration-dependent relaxation of strips of human corpus cavernosum. L-Cys relaxation is inhibited by the CBS inhibitor, aminoxyacetic acid (AOAA). Electrical field stimulation of human penile tissue, under resting conditions, causes an increase in tension that is significantly potentiated by either propargylglycine (PAG; CSE inhibitor) or AOAA. In rats, NaHS and L-Cys promote penile erection, and the response to L-Cys is blocked by PAG. Our data demonstrate that ...
https://strathprints.strath.ac.uk/19236/
China Sodium Hydrosulfide, Ammonium Thiocyanate, Sodium Sulfide supplier - Qixian County Dongfang Chemical Co., Ltd.China Sodium Hydrosulfide, Ammonium Thiocyanate, Sodium Sulfide supplier - Qixian County Dongfang Chemical Co., Ltd.
China Sodium Hydrosulfide supplier, Ammonium Thiocyanate, Sodium Sulfide Manufacturers/ Suppliers - Qixian County Dongfang Chemical Co., Ltd.
http://www.made-in-china.com/showroom/dfchem41
Hydrogen Sulfide: An Agent of Stability at the Microbiome-Mucosa Interface | Gastrointestinal and Liver PhysiologyHydrogen Sulfide: An Agent of Stability at the Microbiome-Mucosa Interface | Gastrointestinal and Liver Physiology
A diverse range of effects of the intestinal microbiota on mucosal defence and injury has become increasingly clear over the past decade. Hydrogen sulfide (H2S) has emerged as an important mediator of many physiological functions, including gastrointestinal mucosal defence and repair. Hydrogen sulfide is produced gastrointestinal tract tissues and by bacteria residing within the gut, and can influence the function of a wide range of cells. The microbiota also appears to be an important target of hydrogen sulfide. H2S donors can modify the gut microbiota and the gastrointestinal epithelium is a major site of oxidation of microbial-derived H2S. When administered together with nonsteroidal anti-inflammatory drugs, H2S can prevent some of the dysbiosis those drugs induce, possibly contributing to the observed prevention of gastrointestinal damage. Exogenous H2S can also markedly reduce the severity of experimental colitis and plays important roles in modulating epithelial cell-mucus-bacterial ...
http://ajpgi.physiology.org/content/early/2017/10/02/ajpgi.00249.2017.most-cited
Abstract 13185: Monocyte Specific Hydrogen Sulfide Regulates Arteriogenesis in Murine Hind Limb Ischemia | CirculationAbstract 13185: Monocyte Specific Hydrogen Sulfide Regulates Arteriogenesis in Murine Hind Limb Ischemia | Circulation
Background: Monocyte signaling is a dominant and important mediator of arteriogenesis activity and monocyte-signaling responses can be severely impaired during arteriogenesis in various vascular disorders. Hydrogen sulfide (H2S) is produced by cystathionine-γ lyase (CSE), and a potential gasotransmitter that has many positive cardiovascular effects including regulation of monocyte functions. However, molecular mechanisms of monocyte specific H2S regulation of arteriogenesis remain completely unknown.. Hypothesis: Monocyte specific H2S production modulates arteriogenesis during hind limb ischemia via a CSE/H2S/IL-16/bFGF dependent pathway.. Methods: Unilateral hind limb ischemia was induced in WT and CSE-/- mice. Mice were then randomly assigned into 4 groups (8 mice, each group); WT PBS, WT DATS (a hydrogen sulfide donor, 200 μg/kg bid., IV until day 21), CSE-/- PBS, CSE-/- DATS. Monocyte expression and activity of CSE and H2S levels was determined in ischemic conditions both in vitro and in ...
http://circ.ahajournals.org/content/128/Suppl_22/A13185
Hydrogen Sulfide and Sulfur Bacteria in Well Water - EH: Minnesota Department of HealthHydrogen Sulfide and Sulfur Bacteria in Well Water - EH: Minnesota Department of Health
A water heater can provide an ideal environment for the conversion of sulfate to hydrogen sulfide gas. The water heater can produce hydrogen sulfide gas in two ways - creating a warm environment where sulfur bacteria can live, and sustaining a reaction between sulfate in the water and the water heater anode. A water heater usually contains a metal rod called an anode, which is installed to reduce corrosion of the water heater tank. The anode is usually made of magnesium metal, which can supply electrons that aid in the conversion of sulfate to hydrogen sulfide gas. The anode is 1/2 to 3/4 inches in diameter and 30 to 40 inches long. ...
https://www.health.state.mn.us/communities/environment/water/wells/waterquality/hydrosulfide.html
Hydrogen sulfide - New World EncyclopediaHydrogen sulfide - New World Encyclopedia
Hydrogen sulfide is a highly toxic and flammable gas. Being heavier than air, it tends to accumulate at the bottom of poorly ventilated spaces. Although very pungent at first, it quickly deadens the sense of smell, so potential victims may be unaware of its presence until it is too late.. Hydrogen sulfide is considered a broad-spectrum poison, meaning that it can poison several different systems in the body, although the nervous system is most affected. The toxicity of H2S is comparable with that of hydrogen cyanide. It forms a complex bond with iron in the mitochondrial cytochrome enzymes, thereby blocking oxygen from binding and stopping cellular respiration. Since hydrogen sulfide occurs naturally in the environment and the gut, enzymes exist in the body capable of detoxifying it by oxidation to (harmless) sulfate.[6] Hence, low levels of sulfide may be tolerated indefinitely. However, at some threshold level, the oxidative enzymes will be overwhelmed. This threshold level is believed to ...
https://www.newworldencyclopedia.org/entry/Hydrogen_sulfide
Interaction of methylglyoxal and hydrogen sulfide in rat vascular smooth muscle cells<...Interaction of methylglyoxal and hydrogen sulfide in rat vascular smooth muscle cells<...
TY - JOUR. T1 - Interaction of methylglyoxal and hydrogen sulfide in rat vascular smooth muscle cells. AU - Chang, Tuanjie. AU - Untereiner, Ashley. AU - Liu, Jianghai. AU - Wu, Lingyun. PY - 2010/5/1. Y1 - 2010/5/1. N2 - Hydrogen sulfide (H2S) is a gasotransmitter with multifaceted physiological functions, including the regulation of glucose metabolism. Methylglyoxal (MG) is an intermediate of glucose metabolism and plays an important role in the pathogenesis of insulin resistance syndromes. In the present study, we investigated the effect of MG on H2S synthesis and the interaction between these two endogenous substances. In cultured vascular smooth muscle cells (VSMCs), MG (10, 30, and 50μM) significantly decreased cellular H2S levels in a concentration-dependent manner, while H 2S donor, NaHS (30, 60, and 90μM), significantly decreased cellular MG levels. The expression level and activity of H2S- producing enzyme, cystathionine γ-lyase (CSE), were significantly decreased by MG treatment. ...
https://researchexperts.utmb.edu/en/publications/interaction-of-methylglyoxal-and-hydrogen-sulfide-in-rat-vascular
Hydrogen Sulfide Iron
Chapter 3 What Causes Hydrogen Sulfide Corrosion? • Mechanism of Sulfide Corrosion Hydrogen sulfide corrosion can occur by two mechanisms: 1) acid attack resulting from the biological conversion of hydrogen sulfide gas to sulfuric acid in the presence of moisture, and 2) direct chemical reaction with metals such as copper, iron … ...
https://www.remyneuf.be/manufacturer/34327_hydrogen-sulfide-iron/
Hydrogen sulfide is a partially redox-independent activator of the human jejunum Na<sup>+</sup> channel, NA<sub...
TY - JOUR. T1 - Hydrogen sulfide is a partially redox-independent activator of the human jejunum Na+ channel, NAv1.5. AU - Strege, Peter R.. AU - Bernard, Cheryl E.. AU - Kraichely, Robert E.. AU - Mazzone, Amelia. AU - Sha, Lei. AU - Beyder, Arthur. AU - Gibbons, Simon J.. AU - Linden, David R.. AU - Kendrick, Michael L.. AU - Sarr, Michael G.. AU - Szurszewski, Joseph H.. AU - Farrugia, Gianrico. PY - 2011/6/1. Y1 - 2011/6/1. N2 - Hydrogen sulfide (H2S) is produced endogenously by L-cysteine metabolism. H2S modulates several ion channels with an unclear mechanism of action. A possible mechanism is through reduction-oxidation reactions attributable to the redox potential of the sulfur moiety. The aims of this study were to determine the effects of the H2S donor NaHS on Nav1.5, a voltage-dependent sodium channel expressed in the gastrointestinal tract in human jejunum smooth muscle cells and interstitial cells of Cajal, and to elucidate whether H2S acts on Nav1.5 by redox reactions. Whole cell ...
https://mayoclinic.pure.elsevier.com/en/publications/hydrogen-sulfide-is-a-partially-redox-independent-activator-of-th
Rotoruas hydrogen sulphide does not worsen asthma - Healthcanal.com : Healthcanal.comRotoruas hydrogen sulphide does not worsen asthma - Healthcanal.com : Healthcanal.com
Hydrogen sulphide or H2S is responsible for the characteristic sulphur smell of Rotorua.. There has long been medical and scientific debate about the health impacts of H2S gas in the workplace and residential areas, and this study is the largest ever of associations between ambient H2S and respiratory health. Concentrations of toxic hydrogen sulphide gas can be produced in factories as a by-product of industrial processes, as well as naturally in volcanic and geothermal regions like Rotorua.. The five year study examined a variety of health effects, including asthma, amongst over 1600 adult Rotorua residents. With a population of nearly 60,000, Rotorua is the largest centre anywhere with long term exposure to hydrogen sulphide and is recognised as an ideal place to research the health effects of H2S.. Exposure to H2S was estimated from measurements taken around Rotorua in summer and winter, and then each persons exposure was estimated from where they lived and worked. H2S exposure was divided ...
https://www.healthcanal.com/lungs-breathing/37421-rotoruas-hydrogen-sulphide-does-not-worsen-asthma.html
Absorption of hydrogen sulfide in aqueous solutions of iodides containing dissolved iodine: enhancements in rates due to...Absorption of hydrogen sulfide in aqueous solutions of iodides containing dissolved iodine: enhancements in rates due to...
The specific rates of absorption of hydrogen sulfide in aqueous solutions of iodides, containing dissolved iodine, were measured in a 55 mm i.d. stirred cell, with batch and semi-batch modes of operation. The specific rates of absorption exceeded the rates that may be realised in the instantaneous reaction regime by factors as high as 8. This effect appears to be due to the precipitating (product) colloidal sulfur transporting dissolved hydrogen sulfide, through strong interaction, from near the gas-liquid interface into the bulk liquid. The relative values of the enhancement factor due to precipitated sulfur decrease with an increase in the concentration of dissolved iodine. A two-parameter model, incorporating the uptake of hydrogen sulfide by sulfur and the agglomeration of sulfur particles, has been developed which provides a reasonable framework to correlate the experimental data. ...
http://repository.ias.ac.in/46125/
Captive® Hydrogen Sulfide Scavenger « « Products | The ingredients of opportunity - Arclin.Captive® Hydrogen Sulfide Scavenger « « Products | The ingredients of opportunity - Arclin.
Hydrogen sulfide is an extremely dangerous gas that naturally occurs in and around oil and natural gas wells. Removing it from the wellhead is essential to the safety of workers around the jobsite.. Arclin has engineered a triazine-based hydrogen sulfide scavenger that interacts with hydrogen sulfide gases to form a nonvolatile compound that can be removed from the job site safely and easily. And Arclins H2S scavenger contains no measurable free formaldehyde.. ...
https://arclin.com/products/agriculture-and-natural-resources/hydrogen-sulfide-scavenger
S-Propargyl-Cysteine, a Novel Hydrogen Sulfide Donor, Inhibits Inflammatory Hepcidin and Relieves Anemia of Inflammation by...
S-Propargyl-Cysteine, a Novel Hydrogen Sulfide Donor, Inhibits Inflammatory Hepcidin and Relieves Anemia of Inflammation by Inhibiting IL-6-STAT3 Pathway. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
http://libros.duhnnae.com/2017/jun9/149859333194-S-Propargyl-Cysteine-a-Novel-Hydrogen-Sulfide-Donor-Inhibits-Inflammatory-Hepcidin-and-Relieves-Anemia-of-Inflammation-by-Inhibiting-IL-6-STAT3-Path.php
Liquid Sodium Hydrosulfide Market Analysis, History and Future Overview 2019-2025 - QYR ConsultingLiquid Sodium Hydrosulfide Market Analysis, History and Future Overview 2019-2025 - QYR Consulting
The report presented here provides a detailed and an accurate account of each aspect of the global Liquid Sodium Hydrosulfide market to help players to better face market challenges and gain a competitive edge over other market participants.
https://www.qyrconsulting.com/reports/liquid-sodium-hydrosulfide-market
What is sodium hydrosulfide?What is sodium hydrosulfide?
UAB Public Health Specialist, Dr. Lisa McCormick said the vapors from sodium hydrosulfide can be toxic and irritating to your respiratory system and can cause burns to your skin and eyes.
https://www.wbrc.com/2020/10/02/what-is-sodium-hydrosulfide/
Hydrogen sulfide anion regulates redox signaling via electrophile sulfhydration<...
TY - JOUR. T1 - Hydrogen sulfide anion regulates redox signaling via electrophile sulfhydration. AU - Nishida, Motohiro. AU - Sawa, Tomohiro. AU - Kitajima, Naoyuki. AU - Ono, Katsuhiko. AU - Inoue, Hirofumi. AU - Ihara, Hideshi. AU - Motohashi, Hozumi. AU - Yamamoto, Masayuki. AU - Suematsu, Makoto. AU - Kurose, Hitoshi. AU - Van Der Vliet, Albert. AU - Freeman, Bruce A.. AU - Shibata, Takahiro. AU - Uchida, Koji. AU - Kumagai, Yoshito. AU - Akaike, Takaaki. N1 - Funding Information: We thank J.B. Gandy for her editing of the manuscript. Thanks are also due to T. Okamoto, S. Fujii, Md. M. Rahaman, S. Khan, K.A. Ahmed, J. Yoshitake, T. Matsunaga, M.H.A. Rahman, J. Sakamoto, J. Minkyung, K. Hara, M. Goto, F. Sohma, K. Taguchi, T. Miura, T. Toyama, Y. Shinkai, I. Ishii and M. Toyataka for technical assistance; S. Kasamatsu, T. Ida and K. Kunieda for 8-nitro-cGMP preparation; Y. Kawai for technical assistance with LC/MS/MS experiments; H. Arimoto for helpful discussion; and J. Wu for reading our ...
https://keio.pure.elsevier.com/en/publications/hydrogen-sulfide-anion-regulates-redox-signaling-via-electrophile
Temple Scientists Use Hydrogen Sulfide to Restore Stem Cell-Mediated Blood Flow in Ischemic Limbs of Diabetic Mice | Lewis Katz...Temple Scientists Use Hydrogen Sulfide to Restore Stem Cell-Mediated Blood Flow in Ischemic Limbs of Diabetic Mice | Lewis Katz...
In a new study, the reseachers, including Raj Kishore, PhD, are the first to show in diabetic animals that induced hydrogen sulfide production in bone marrow stem cells can effectively repair vessel tone and limb circulation.
https://medicine.temple.edu/node/10646
EP 0731068 B1 20010523 - Process for binding ammonia and/or hydrogen sulphide in manureEP 0731068 B1 20010523 - Process for binding ammonia and/or hydrogen sulphide in manure
299548993 - EP 0731068 B1 2001-05-23 - Process for binding ammonia and/or hydrogen sulphide in manure - [origin: EP0731068A2] Binding ammonia and/or hydrogen sulphide in liquids, esp. farmyard slurry, comprises mixing with a solid or liq. additive (A) contg. at least two carboxylic acids. Also claimed are: (A); and the NH3 and/or H2S-contg. liq. which also contains carboxylic acids from the addn. of (A). Pref. the compsn. contains at least one Fe cpd. (esp. FeSO4) and at least one 1-6C (esp. 4-6C) aliphatic mono- or di- carboxylic acid. The wt. ratio of carboxylic acids to Fe cpd. is 15:1 to 1:15. The amt. added is sufficient to lower the pH of the liq. by at least 0.2.[origin: EP0731068A2] Binding ammonia and/or hydrogen sulphide in liquids, esp. farmyard slurry, comprises mixing with a solid or liq. additive (A) contg. at least two carboxylic acids. Also claimed are: (A); and the NH3 and/or H2S-contg. liq. which also contains carboxylic acids from the addn. of (A). Pref. the compsn. contains at least
https://data.epo.org/gpi/EP0731068B1-Process-for-binding-ammonia-and-or-hydrogen-sulphide-in-manure
Angiotensin 1 Peptide Conjugated CdSe/ZnS Quantum Dots Induce Cardiac-Specific Hydrogen Sulfide Production to Mitigate...Angiotensin 1 Peptide Conjugated CdSe/ZnS Quantum Dots Induce Cardiac-Specific Hydrogen Sulfide Production to Mitigate...
Hydrogen sulfide (H2S) is protective in myocardial ischemia/reperfusion injury (I/R). However, venous injection of NaHS and local injection of adenovirus with cystathionine-γ-lyase (CSE) plasmids was used to increase H2S concentration presented low-efficiency and side-eff...
https://www.researchsquare.com/article/rs-201476/v1
Water Expert Andy Ball: Hydrogen Sulfide | Milford PA | Ask The ExpertWater Expert Andy Ball: Hydrogen Sulfide | Milford PA | Ask The Expert
Hydrogen sulfide (or hydrogen sulphide) is the chemical compound with the formula H2S. This colorless, toxic and flammable gas is partially responsible for the foul odor of rotten eggs and flatulence. It often results from the bacterial break down of sulfates in organic matter in the absence of oxygen, such as in swamps and sewers (anaerobic digestion). It also occurs in volcanic gases, natural gas and some well waters. The odor of H2S is commonly misattributed to elemental sulfur, which is in fact odorless. Hydrogen sulfide has numerous names, some of which are archaic ...
http://www.pikecountycourier.com/apps/pbcs.dll/article?AID=/20171105/EXPERTS01/160109938/0/HOME03
CoQ deficiency causes disruption of mitochondrial sulfide oxidation, a new pathomechanism associated with this syndrome | EMBO...CoQ deficiency causes disruption of mitochondrial sulfide oxidation, a new pathomechanism associated with this syndrome | EMBO...
The changes in neurotransmitters biosynthesis in the cerebrum of Coq9R239X mice are not limited to the reduction in L‐glutamate but also to the biosynthesis of serotonin and catecholamines. These alterations might be a consequence of the disruption in hydrogen sulfide metabolism because a dose‐dependent and time‐dependent decrease in glutamate levels and increase in serotonin levels have been described in the cerebrum and frontal cortex of rats chronically exposed to 20 ppm and 75 ppm of hydrogen sulfide (Skrajny et al, 1992; Roth et al, 1995). The same authors reported a decrease in the levels of norepinephrine with the exposure to 20 ppm of hydrogen sulfide and an increase in those levels with the exposure to 75 ppm of hydrogen sulfide (Skrajny et al, 1992). Norepinephrine and epinephrine levels were, however, decreased in isolated porcine iris‐ciliary body exposed to increased concentrations of NaSH, which is a commonly used hydrogen sulfide donor (Kulkarni et al, 2009). The changes ...
http://d3gz45kfcn01zz.cloudfront.net/content/9/1/78
Hydrogen Sulfide Cracking Of Downhole Tubulars · GitHubHydrogen Sulfide Cracking Of Downhole Tubulars · GitHub
RyanMourhatch,Ghazi D Al-Qahtani, : 1, Gulf Publishing Company, Scale, or deposits, can build up in the wellbore tubulars and other downholePrediction of Sulfide Stress Cracking in High-Strength Tubulars .Energy Products Unmatched . downhole chemistry, durability and temperature requirements. Developed .Buy NACE MR 01 75:2003 Metals For Sulfide Stress Cracking And Stress Corrosion . 10 Downhole Casing, Downhole .Readbag users suggest that Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen . workover, downhole . Sulfide Stress Cracking .VIKING Engineering offers the best in critical well engineering services to the oil and . From hydrogen sulfide stress cracking, . Matching Tubulars to .tubulars is about 2x to 4x . Hydrogen Sulfide Corrosion .By Anne Sevignon and William Gamisans, VAM Drilling The evolution of drilling programs has driven the industry to develop more suitable solutions adapted to extreme .Decades of successful service have shown them to be ...
https://gist.github.com/anonymous/c1df6ecc2095ec4601a69554543075e8
Hydrogen Sulfide Improves Intestinal Recovery Following Ischemia by Endothelial Nitric Oxide Dependent Mechanisms |...Hydrogen Sulfide Improves Intestinal Recovery Following Ischemia by Endothelial Nitric Oxide Dependent Mechanisms |...
Purpose: Hydrogen Sulfide (H2S) is an endogenous gasotransmitter that has vasodilatory properties. It may be a novel therapy for intestinal I/R. We hypothesized that: 1) H2S would improve post-ischemic survival, mesenteric perfusion, mucosal injury, and inflammation compared to vehicle, and 2) the benefits of H2S would be mediated through endothelial nitric oxide. Methods: C57Bl6J wild type (WT) and endothelial nitric oxide synthase knock out (eNOS KO) mice were anesthetized and a midline laparotomy performed. Intestines were eviscerated, the small bowel mesenteric root identified, and baseline intestinal perfusion determined using Laser Doppler. Intestinal ischemia was established by temporarily occluding the superior mesenteric artery. Following ischemia, the clamp was removed and the intestines were allowed to recover. Sodium hydrosulfide (NaHS) in 250µl of PBS or the vehicle was injected into the peritoneum. Animals were allowed to recover and were assessed for survival, mesenteric ...
http://ajpgi.physiology.org/content/early/2017/03/08/ajpgi.00444.2016.most-cited
H2S Hydrogen Sulfide VideoH2S Hydrogen Sulfide Video
This newly developed program meets the academic training requirements for those persons who work in an area with potential hydrogen sulfide exposures. Program explains new TLV and other important safety rules relating to hydrogen sulfide.
https://www.safety-video-bmsh.com/H2S-Hydrogen-Sulfide-Video_p_1998.html
Exogenous hydrogen sulfide attenuates gastric ischemia-reperfusion injury via activation of K<sub>ATP</sub>...Exogenous hydrogen sulfide attenuates gastric ischemia-reperfusion injury via activation of K<sub>ATP</sub>...
Abstract: 本文旨在观察外源性硫化氢(hydrogen sulfide,H2S)供体NaHS预处理对大鼠胃缺血再灌注(gastric ischemia-reperfusion,GI-R)损伤的影响及其可能的作用机制。实验分5组:假手术(sham)组、GI-R组、NaHS组、格列苯脲(glibenclamide)组和吡那地尔(pinacidil)组。采用夹闭雄性Sprague-Dawley(SD)大鼠腹腔动脉30min再灌注1h,建立GI-R损伤模型。采用Adobe ...
http://caod.oriprobe.com/articles/28772060/Exogenous_hydrogen_sulfide_attenuates_gastric_ischemia_reperfusion_inj.htm
Hydrogen sulfide is an endogenous regulator of aging in Caenorhabditis elegans | DR-NTUHydrogen sulfide is an endogenous regulator of aging in Caenorhabditis elegans | DR-NTU
Aims: To investigate the role of endogenous hydrogen sulfide (H2S) in the control of aging and healthspan of Caenorhabditis elegans. Results: We show that the model organism, C. elegans, synthesizes H2S. Three H2S-synthesizing enzymes are present in C. elegans, namely cystathionine γ lyase (CSE), cystathionine β synthetase, and 3-mercaptopyruvate transferase (MPST or 3-MST). Genetic deficiency of mpst-1 (3-MST orthologue 1), but not cth-2 (CSE orthologue), reduced the lifespan of C. elegans. This effect was reversed by a pharmacological H2S donor (GYY4137). GYY4137 also reduced detrimental age-dependent changes in a range of physiological indices, including pharyngeal contraction and defecation. Treatment of C. elegans with GYY4137 increased the expression of several age-related, stress response, and antioxidant genes, whereas MitoSOX Red fluorescence, indicative of reactive oxygen species generation, was increased in mpst-1 knockouts and decreased by GYY4137 treatment. GYY4137 additionally ...
https://dr.ntu.edu.sg/handle/10220/19282
China Sodium Sulphide Red Flake (20ppm/30ppm/1500ppm) 1313-82-2 - China Sodium Sulphide, Sodium Sulphide 60 Red FlakeChina Sodium Sulphide Red Flake (20ppm/30ppm/1500ppm) 1313-82-2 - China Sodium Sulphide, Sodium Sulphide 60 Red Flake
China Sodium Sulphide Red Flake (20ppm/30ppm/1500ppm) 1313-82-2, Find details about China Sodium Sulphide, Sodium Sulphide 60 Red Flake from Sodium Sulphide Red Flake (20ppm/30ppm/1500ppm) 1313-82-2 - Zouping Changshan Zefeng Fertilizer Co., Ltd.
http://csfertilizer.en.made-in-china.com/product/yqemvxghnBpM/China-Sodium-Sulphide-Red-Flake-20ppm-30ppm-1500ppm-1313-82-2.html
Effect of N-acetylcysteine (NAC) on Hydrogen Sulfide (H2S) in Chronic Kidney Disease (CKD) - Full Text View - ClinicalTrials.govEffect of N-acetylcysteine (NAC) on Hydrogen Sulfide (H2S) in Chronic Kidney Disease (CKD) - Full Text View - ClinicalTrials.gov
Cardiovascular morbidity and mortality is high in CKD patients. Nitric oxide (NO) deficiency plays a crucial role in progression of CKD. This leads to endothelial dysfunction, hypertension, and inflammation. Hydrogen sulfide (H2S) could serve as a backup mechanism for NO deficiency in CKD. N-acetylcysteine (NAC) is a derivate of cysteine and this is the main substrate for H2S production. Therefore, NAC should enable us to stimulate H2S production in humans. Our objective is to investigate the effect of NAC on plasma H2S levels and on markers of oxidative stress, inflammation, and endothelial dysfunction in healthy volunteers, CKD patients, and dialysis patients. We hypothesize that there is an increase in H2S levels after treatment with NAC ...
https://clinicaltrials.gov/show/NCT01232257
北京大学医学部机构知识库([email protected]): Hydrogen sulfide attenuates epithelial-mesenchymal transition of human alveolar epithelial cells
We previously reported that the endogenous cystathionine gamma-lyase (CSE)/hydrogen sulfide (H(2)S) pathway is implicated in the pathogenesis of bleomycin-induced pulmonary fibrosis in rats, but the exact cellular mechanisms are not well characterized. Epithelial-mesenchymal transition (EMT), induced by transforming growth factor beta 1 (TGF-beta 1) in alveolar epithelial cells, plays an important role in the pathogenesis of pulmonary fibrosis. We studied whether H(2)S could attenuate EMT in cultured alveolar epithelial cells and TGF-beta 1 treatment suppressed CSE expression in A549 cells. Inhibition of endogenous CSE by DL-propargylglycine led to spontaneous EMT, as manifested by decreased E-cadherin level, increased vimentin expression and fibroblast-like morphologic features. Exogenous H(2)S applied to TGF-beta 1-treated A549 cells decreased vimentin expression, increased E-cadherin level and retained epithelial morphologic features. In addition, preincubation with H(2)S decreased Smad2/3 ...
http://ir.bjmu.edu.cn/handle/400002259/55470
PPT - Hydrogen Sulfide Gas PowerPoint Presentation - ID:6763227PPT - Hydrogen Sulfide Gas PowerPoint Presentation - ID:6763227
Hydrogen Sulfide Gas. Describe H 2 S gas and where it is found:. Hydrogen Sulfide is a highly toxic gas often associated with operations involving decomposing organic material (rotting plant and animal tissues). Slideshow 6763227 by socorro-xovi
https://www.slideserve.com/socorro-xovi/hydrogen-sulfide-gas
Hydrogen sulphide induces angiogenesis<...Hydrogen sulphide induces angiogenesis<...
TY - JOUR. T1 - Hydrogen sulphide induces angiogenesis. AU - Pyriochou, Anastasia. AU - Marazioti, Antonia. AU - Szabo, Csaba. AU - Papapetropoulos, Andreas. PY - 2009. Y1 - 2009. N2 - Hydrogen sulphide (H2S) is emerging as an important signalling molecule in the cardiovascular and neuronal systems. Although H2S is known to relax vascular smooth muscle leading to a reduction in blood pressure, the role of this gaseous mediator in other aspects of the biology of vascular cells remains largely unexplored. In order to study the effects of H2S on neovascularisation, we have utilised an aqueous formulation of H2S. Incubation of endothelial cells (EC) with H2S enhanced their angiogenic potential as it promoted cell growth, migration and capillary morphogenesis on matrigel. In line with the in vitro observations, treatment of chicken chorioallantoic membranes (CAM) with H2S increased vascular length. Morever, exposure of EC to H2S resulted in increased phosphorylation of kinases linked to angiogenic ...
https://researchexperts.utmb.edu/en/publications/hydrogen-sulphide-induces-angiogenesis
Earth: Extinctions & Climate - ShowsEarth: Extinctions & Climate - Shows
Appearing during the first three hours, Prof. Peter Ward, the author of Under a Green Sky, discussed his latest work on hydrogen sulfide extinctions, and how we are creating the circumstances for extinctions in the future. His research has connected past mass extinctions and global warming. Greenhouse gases and the melting of the ice-caps could create a dangerous situation where the ocean currents stop circulating. The stagnation of the oceans waters would lead to the thriving of a type of bacteria that produces hydrogen sulfide. Killing off life in the ocean and sending toxic gases into the atmosphere, hydrogen sulfide could actually turn the sky green, he noted. The coast off of Namibia is a hydrogen sulfide hot spot and the eruptions can be seen in this NASA satellite photo. Curiously, it has been found that hydrogen sulfide can have startling medical benefits, putting injured people into a kind of suspended animation until they can be treated. For more on hydrogen sul
https://www.coasttocoastam.com/show/2008/03/12
HYDROGEN SULFIDE LIMITS: HEALTH, ODOR, OR WELFARE BASED?: Ingenta ConnectHYDROGEN SULFIDE LIMITS: HEALTH, ODOR, OR WELFARE BASED?: Ingenta Connect
This paper discusses hydrogen sulfide limits for various states that have recently updated their limits or whose limits demonstrate a distinction between health and odor-based limits. Odor discussions often focus on hydrogen sulfide because it has a low odor threshold and it is easily detected and recognized. There is a widely held public opinion that if odors are apparent, whether from wastewater processes, landfill gas emissions, or other sources, that these odors are a health concern. The differences between health and welfare/nuisance concerns and how emission limits are established is presented. Although some states base their emission limits on health concerns and some base the limits on welfare concerns, from the publics perspective both types of limits are often considered to be health-based ...
http://www.ingentaconnect.com/content/wef/wefproc/2006/00002006/00000003/art00013
The synthesis and bioimaging of a biocompatible hydrogen sulfide fluorescent probe with high sensitivity and selectivity -...The synthesis and bioimaging of a biocompatible hydrogen sulfide fluorescent probe with high sensitivity and selectivity -...
Hydrogen sulfide (H2S), a well-known poisonous gas, has been recognized as a critical endogenous gas transmitter in the past decade. To provide a quick and efficient detection method for hydrogen sulfide, a novel fluorescent probe DCI-NCN was designed based on an isophoronitrile scaffold featured with the cyanoxy g
https://pubs.rsc.org/en/content/articlelanding/2020/an/c9an02323b/unauth
Characterisation of cystathionine gamma-lyase/hydrogen sulphide pathway in ischaemia/reperfusion injury of the mouse kidney: an...Characterisation of cystathionine gamma-lyase/hydrogen sulphide pathway in ischaemia/reperfusion injury of the mouse kidney: an...
The generation of endogenous hydrogen sulphide may either limit or contribute to the degree of tissue injury caused by ischaemia/reperfusion injury. Here, we have attempted to characterise the endogenous hydrogen sulphide synthesis pathway and the effects of sodium hydrosulphide, a hydrogen sulphide donor, in a mouse model of renal ischaemia/reperfusion injury. Anaesthetised male C57/b mice weighing 20-25 g were divided into two groups; (i) Ischaemia/Reperfusion Injury, in which mice were subjected to bilateral renal ischaemia performed by clamping the renal pedicles for 30 min followed by reperfusion for 24 h, (ii) Sham, in which mice were subjected to the same surgical procedures as above, except for renal ischaemia/reperfusion. Western blot analysis of the kidney taken at the end of the experiment demonstrated that cystathionine gamma-lyase, the enzyme responsible for generating hydrogen sulphide in the cardiovascular system, is expressed in the normal kidney and is significantly ...
https://westminsterresearch.westminster.ac.uk/item/90qw0/characterisation-of-cystathionine-gamma-lyase-hydrogen-sulphide-pathway-in-ischaemia-reperfusion-injury-of-the-mouse-kidney-an-in-vivo-study
ATSDR - Toxic Substances - Hydrogen Sulfide Carbonyl SulfideATSDR - Toxic Substances - Hydrogen Sulfide Carbonyl Sulfide
Hydrogen sulfide (H2S) occurs naturally in crude petroleum, natural gas, volcanic gases, and hot springs. It can also result from bacterial breakdown of organic matter. It is also produced by human and animal wastes. Bacteria found in your mouth and gastrointestinal tract produce hydrogen sulfide from bacteria decomposing materials that contain vegetable or animal proteins. Hydrogen sulfide can also result from industrial activities, such as food processing, coke ovens, kraft paper mills, tanneries, and petroleum refineries. Hydrogen sulfide is a flammable, colorless gas with a characteristic odor of rotten eggs. It is commonly known as hydrosulfuric acid, sewer gas, and stink damp. People can smell it at low levels.
https://www.atsdr.cdc.gov/substances/toxsubstance.asp?toxid=67
Sodium hydrogen sulfide inhibits nicotine and lipopolysaccharide-induced osteoclastic differentiation and reversed osteoblastic...Sodium hydrogen sulfide inhibits nicotine and lipopolysaccharide-induced osteoclastic differentiation and reversed osteoblastic...
Although previous studies have demonstrated that hydrogen sulfide (H2S) stimulated or inhibited osteoclastic differentiation, little is known about the effects of H2S on the differentiation of osteoblasts and osteoclasts. To determine the possible bioactivities of H2S on bone metabolism, we investigated the in vitro effects of H2S on cytotoxicity, osteoblastic, and osteoclastic differentiation as well as the underlying mechanism in lipopolysaccharide (LPS) and nicotine-stimulated human periodontal ligament cells (hPDLCs). The H2S donor, NaHS, protected hPDLCs from nicotine and LPS-induced cytotoxicity and recovered nicotine- and LPS-downregulated osteoblastic differentiation, such as alkaline phosphatase (ALP) activity, mRNA expression of osteoblasts, including ALP, osteopontin (OPN), and osteocalcin (OCN), and mineralized nodule formation. Concomitantly, NaHS inhibited the differentiation of tartrate-resistant acid phosphatase (TRAP)-positive osteoclasts in mouse bone marrow cells and blocked ...
http://onlinelibrary.wiley.com/doi/10.1002/jcb.24461/full?globalMessage=0
ATSDR - Toxicological Profile: Hydrogen Sulfide Carbonyl SulfideATSDR - Toxicological Profile: Hydrogen Sulfide Carbonyl Sulfide
Hydrogen sulfide occurs naturally and is also produced by human activities. Just a few breaths of air containing high levels of hydrogen sulfide gas can cause death. Lower, longer-term exposure can cause eye irritation, headache, and fatigue. This substance has been found in at least 24 of the 1,467 National Priorities List sites identified by the Environmental Protection Agency (EPA).
https://www.atsdr.cdc.gov/ToxProfiles/TP.asp?id=389&tid=67
New method could improve economics of sweetening natural gasNew method could improve economics of sweetening natural gas
Because hydrogen sulfide is such a common contaminant in methane, natural gas processors could potentially use this method in the sweetening process, reducing their energy use and saving money on the cost of sorbent materials, said Phillip Koech, lead author and senior research scientist.. In the new work, Koech and colleagues tested how well they could swing hydrogen sulfide through a series of processing liquids without using water or heat. They began with a substance known as a recyclable binding organic liquid that could hold onto hydrogen sulfide without the addition of water. First, they dissolved hydrogen sulfide in several different recyclable binding organic liquids and found that nearly all of them could hold the chemical without added water. They found one -- DMEA -- that could hold the most hydrogen sulfide. A chemical analysis suggested that hydrogen sulfide forms a salt with DMEA, turning the DMEA from an oily liquid into something more like salty water, but not water at ...
http://www.innovations-report.com/html/reports/energy-engineering/method-improve-economics-sweetening-natural-gas-171829.html
Living dangerously: implications of hydrogen sulphide events for marine life along the Namibian coast : A.G.V. Salvanes6, R....Living dangerously: implications of hydrogen sulphide events for marine life along the Namibian coast : A.G.V. Salvanes6, R....
Hypoxia, anoxia and free hydrogen sulphide in the water column are characteristic of the inner shelf coastal upwelling system off central Namibia. Biogeochemical monitoring of the diatomaceous sediments along the central coast over a 3-year period, coupled with acoustic studies and ROV video coverage, indicated a major role played by the seafloor in the generation and control of H2S into the water column. We determined the sedimentary processes resulting in the generation and dispersal of hydrogen sulphide, and its effect on some of the locally important fishes and invertebrates.. Marked interannual variability with no obvious seasonal trends was apparent in methane contents of sediments even over the short three-year period, whilst sulphate reduction rates in the sediment showed little change. The large sulphur bacteria Thiomargarita namibiensis and Beggiatoa spp. form dense mats over extensive areas of mud and oxidize sulphide at the sediment-water interface, thereby regulating its flux into ...
http://su.diva-portal.org/smash/record.jsf?pid=diva2:182317
Frontiers | Hydrogen Sulfide Inhibits High-Salt Diet-Induced Myocardial Oxidative Stress and Myocardial Hypertrophy in Dahl...Frontiers | Hydrogen Sulfide Inhibits High-Salt Diet-Induced Myocardial Oxidative Stress and Myocardial Hypertrophy in Dahl...
The study aimed to examine the protective effect of hydrogen sulfide (H2S) on high-salt-induced oxidative stress and myocardial hypertrophy in salt-sensitive (Dahl) rats. Thirty male Dahl rats and 40 SD rats were included in the study. They were randomly divided into Dahl control (Dahl + NS), Dahl high salt (Dahl + HS), Dahl + HS + NaHS, SD + NS, SD + HS, SD + HS + NaHS, and SD + HS + hydroxylamine (HA). Rats in Dahl + NS and SD + NS groups were given chow with 0.5% NaCl and 0.9% normal saline intraperitoneally daily. Myocardial structure, α-myosin heavy chain (α-MHC) and β-myosin heavy chain (β-MHC) expressions were determined. Endogenous myocardial H2S pathway and oxidative stress in myocardial tissues were tested. Myocardial H2S pathway was downregulated with myocardial hypertrophy featured by increased heart weight/body weight and cardiomyocytes cross-sectional area, decreased α-MHC and increased β-MHC expressions in Dahl rats with high-salt diet (all P P P 2S reduced myocardial hypertrophy
https://www.frontiersin.org/articles/10.3389/fphar.2017.00128/full
Treatment of sulfide hydrosulphuric mineral water with matsesta
Hydrogen sulfide baths are usually used in the form of classical baths, half-baths, irrigation, inhalations, ascending shower. Before taking such baths, it is necessary to consult a qualified doctor who will determine what type of balneotherapy and what concentration of hydrogen sulfide you need. Throughout the course of therapy it is necessary to refuse from alcohol intake, smoking, not to overeat, not to allow stress. Taking baths follows out food and active activities. If during balneotherapy you feel unwell, dizzy, nauseous, stop taking the bath immediately and ventilate the room. Contact a specialist and he will give you another dosage of hydrogen sulfide. To date, there is the opportunity to take sulfide baths at home. To do this, it is enough to buy a special drug in the pharmacy and, after consulting a doctor, dilute it in the right proportion. When specifying the course of treatment with Matsestas waters, the concentration of hydrogen sulfide is indicated. For reception of the general ...
https://medadvicees.com/en/pages/10398
Whats New in Nanotechnology? | Page 9 | trynano.org
An electron microscope image shows carbon black nanoparticles modified by adding polyvinyl alcohol for downhole detection of hydrogen sulfide in oil and gas wells. The nanoreporters were created at Rice University. (Credit: Tour Group/Rice University). Scientists at Rice University have created a nanoscale detector that checks for and reports on the presence of hydrogen sulfide in crude oil and natural gas while theyre still in the ground. The nanoreporter is based on nanometer-sized carbon material developed by a consortium of Rice labs led by chemist James Tour. Limited exposure to hydrogen sulfide causes sore throats, shortness of breath and dizziness, according to the researchers. The human nose quickly becomes desensitized to hydrogen sulfide, leading to an inability to detect higher concentrations. That can be fatal, they said. On the flip side, hydrogen sulfide is also a biologically important signaling molecule in processes that include pain and inflammation. Tour said chemists have ...
http://trynano.org/news/buzz-wearable-gps?page=8
Free Signal Transduction And The Gasotransmitters: No, Co, And H2S In Biology And MedicineFree Signal Transduction And The Gasotransmitters: No, Co, And H2S In Biology And Medicine
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http://picat-lang.org/teaching/cis3220/ebook.php?q=free-Signal-Transduction-and-the-Gasotransmitters%3A-NO%2C-CO%2C-and-H2S-in-Biology-and-Medicine/
Inhibition of T-type Ca2+ channels by hydrogen sulfideInhibition of T-type Ca2+ channels by hydrogen sulfide
T-type Ca2+ channels are a distinct family of low voltage-activated Ca2+ channels which serve many roles in different tissues. Several studies have implicated them, for example, in the adaptive responses to chronic hypoxia in the cardiovascular and endocrine systems. Hydrogen sulfide (H2S) was more recently discovered as an important signalling molecule involved in many functions, including O2 sensing. Since ion channels are emerging as an important family of target proteins for modulation by H2S, and both T-type Ca2+ channels and H2S are involved in cellular responses to hypoxia, we have investigated whether recombinant and native T-type Ca2+ channels are a target for modulation by H2S. Using patch-clamp electrophysiology, we demonstrate that the H2S donor, NaHS, selectively inhibits Cav3.2 T-type Ca2+ channels heterologously expressed in HEK293 cells, whilst Cav3.1 and Cav3.3 channels were unaffected. Sensitivity of Cav3.2 channels to H2S required the presence of the redox-sensitive ...
https://bradscholars.brad.ac.uk/handle/10454/12224?show=full
Sunken Wood Can Develop into Habitats for Microorganisms and InvertebratesSunken Wood Can Develop into Habitats for Microorganisms and Invertebrates
Scientists from the Max Planck Institute have shown how sunken wood can develop into attractive habitats for a variety of microorganisms and invertebrates due to the activity of bacteria, which produce hydrogen sulfide during wood degradation.. Trees do not grow in the deep sea, nevertheless sunken pieces of wood can develop into oases for deep-sea life - at least temporarily until the wood is fully degraded. A team of Max Planck researchers from Germany now showed how sunken wood can develop into attractive habitats for a variety of microorganisms and invertebrates. By using underwater robot technology, they confirmed their hypothesis that animals from hot and cold seeps would be attracted to the wood due to the activity of bacteria, which produce hydrogen sulfide during wood degradation.. Many of the animals thriving at hydrothermal vents and cold seeps require special forms of energy such as methane and hydrogen sulfide emerging from the ocean floor. They carry bacterial symbionts in their ...
https://scitechdaily.com/sunken-wood-can-develop-into-habitats-for-microorganisms-and-invertebrates/
Hydrogen Sulfide, Deuterium Sulfide & Hydrogen Selenide, Volume 32 - 1st EditionHydrogen Sulfide, Deuterium Sulfide & Hydrogen Selenide, Volume 32 - 1st Edition
Purchase Hydrogen Sulfide, Deuterium Sulfide & Hydrogen Selenide, Volume 32 - 1st Edition. Print Book & E-Book. ISBN 9780080324814, 9781483286396
https://www.elsevier.com/books/hydrogen-sulfide-deuterium-sulfide-and-hydrogen-selenide/fogg/978-0-08-032481-4
Exogenous hydrogen sulfide restores cardioprotection of ischemic post-conditioning via inhibition of mPTP opening in the aging...Exogenous hydrogen sulfide restores cardioprotection of ischemic post-conditioning via inhibition of mPTP opening in the aging...
Sigma-Aldrich offers abstracts and full-text articles by [Hongzhu Li, Chao Zhang, Weiming Sun, Lina Li, Bo Wu, Shuzhi Bai, Hongxia Li, Xin Zhong, Rui Wang, Lingyun Wu, Changqing Xu].
https://www.sigmaaldrich.com/catalog/papers/26229588
Ammonium Sulfide Solution (CAS 12135-76-1) is Used in Stink Bombs, Photographic Developing & Textile ManufacturingAmmonium Sulfide Solution (CAS 12135-76-1) is Used in Stink Bombs, Photographic Developing & Textile Manufacturing
Ammonium sulfide (also called diammonium sulfide, ammonium monosulfide, true ammonium sulfide) is a yellow crystalline solid, usually in a water solution, with the molecular formula H8N2S. It has a very strong rotten egg and ammonia odor. Ammonium sulphide is produced from the reaction of hydrogen sulfide with excess amounts of ammonia.. Ammonium sulfide is used in photographic developing, to apply patina to bronze, in textile manufacturing, and in trace metal analysis. Also, owing to its offensive smell, it is the active ingredient in a variety of foul pranks including the common stink bomb.. Additional applications of this compound include cell culture, organic chemical synthesis, and immunohistochemistry.. Aqueous ammonium sulfide is used for the thiolysis of activated amides to their corresponding thioamides, as an alternative to hydrogen sulfide. Also it is used to produce various flavor compounds from the reaction of ammonium sulfide with 3-hydroxy-2-butanone.. Ammonium sulfide can be ...
https://marketpublishers.com/lists/13801/news.html
Detection of changes in mitochondrial hydrogen sulfide in vivo in the fish model Poecilia mexicana (Poeciliidae) | Biology OpenDetection of changes in mitochondrial hydrogen sulfide in vivo in the fish model Poecilia mexicana (Poeciliidae) | Biology Open
Before the rise in atmospheric oxygen (O2) levels ∼800 million years ago, oceans were euxinic; that is, both anoxic and sulfidic. The rise in O2 was associated with an increased abundance of cyanobacteria and plants that are thought to have eliminated sulphide, which was an abundant energy source (Olson and Straub, 2016). Eventually, organisms adapted mechanisms that used O2 to harvest energy and support cellular processes. However, hydrogen sulfide (H2S) still retained an important role in cellular function, serving as an important signaling molecule. Indeed, the pathway for H2S regulation is highly conserved across modern taxa (Olson and Straub, 2016).. Modern environments that have high H2S levels are primarily limited to deep-sea hydrothermal vents (Olson and Straub, 2016), where levels can be 3-110 mmol kg−1. Cold seeps and freshwater springs and caves fed by H2S-enriched groundwater have been found with levels of H2S up to 1200 µM (Tobler et al., 2011). These habitats are ...
https://bio.biologists.org/content/8/5/bio041467
Arecoline Induces Neurotoxicity to PC12 Cells: Involvement in ER Stress and Disturbance of Endogenous H2S Generation - Semantic...Arecoline Induces Neurotoxicity to PC12 Cells: Involvement in ER Stress and Disturbance of Endogenous H2S Generation - Semantic...
Arecoline is a major alkaloid of areca nut and has been effect on central nervous system. Although arecoline-induced neurotoxicity has been reported, the possible underlying neurotoxic mechanisms have not yet been elucidated. Increasing evidences have shown that both excessive endoplasmic reticulum (ER) stress and disturbance of hydrogen sulfide (H2S) production are involved in the pathophysiology of numerous neurodegenerative diseases. Here, the purpose of present study was to verify whether ER stress and the disturbance of endogenous H2S generation are also involved in arecoline-caused neurotoxicity. We found that treatment of PC12 cells with arecoline induced the down-regulation of cells viability and up-regulation of apoptosis and the activity of caspase-3, indicating the neurotoxic role of arecoline to PC12 cells. In addition, arecoline also increased the expression of Bax (pro-apoptotic protein) and attenuated the expression of Bcl-2 (anti-apoptotic protein) in PC12 cells. Simultaneously,
https://www.semanticscholar.org/paper/Arecoline-Induces-Neurotoxicity-to-PC12-Cells-Invo-Jiang-Wang/5b287d567123a7d15f10fbbca9cb6135ccd3a313
NCM) Lysine Iron AgarNCM) Lysine Iron Agar
Product number: NCM0140. Lysine Iron Agar is used for the differentiation of microorganisms on the basis of lysine decarboxylase and hydrogen sulfide production. Lysine Iron Agar is not intended for use in the diagnosis of disease or other conditions in humans.. Lysine Iron Agar is prepared according to the formulation of Edwards and Fife, who developed the medium to detect Salmonella arizonae. S. arizonae ferments lactose rapidly, and the authors found expected H2S production on Triple Sugar Iron Agar was suppressed. Detection of S. arizonae is important because it has been implicated in food borne infections. By eliminating lactose and incorporating lysine, Edwards and Fife devised a medium differentiating enteric bacilli based on their ability to decarboxylate or deaminate lysine and produce abundant hydrogen sulfide. This medium is recommended for detecting rapid lactose-fermenting S. arizonae.. ...
https://foodsafety.neogen.com/en/ncm-lysine-iron-agar
Hydrogen Sulfide and Neurogenic Inflammation in a Murine Model of Polymicrobial Sepsis | ScholarBank@NUSHydrogen Sulfide and Neurogenic Inflammation in a Murine Model of Polymicrobial Sepsis | [email protected]
Hydrogen sulfide (H,sub,2,/sub,S), a malodorous gas with the characteristic odor of rotten eggs, has been recognized as an important endogenous gaseous signaling molecule of the cardiovascular, gastrointestinal, genitourinary, and nervous systems. Besides acting as a potent vasodilator and an atypical neuromodulator, H,sub,2,/sub,S is increasingly being established as a novel mediator of inflammation. However, the part played by H,sub,2,/sub,S in modulating neurogenic inflammatory response in sepsis is not known. Therefore, this study aimed to investigate the role of H,sub,2,/sub,S in mediating neurogenic inflammation in a mouse model of polymicrobial sepsis induced by cecal ligation and puncture (CLP). Of major significance in the development of neurogenic inflammation is the transient receptor potential vanilloid type 1 (TRPV1) receptor, a non-selective cation channel found predominantly in primary sensory neurons. In particular, the results of the present study indicate that H,sub,2,/sub,S ...
http://scholarbank.nus.edu.sg/handle/10635/30699
Bw Equivalent Cg-q34-4jk Pentane + Oxygen + Hydrogen Sulfide + Carbon Monoxide Reactive Multi Mixtures Buy Calibration Gas...Bw Equivalent Cg-q34-4jk Pentane + Oxygen + Hydrogen Sulfide + Carbon Monoxide Reactive Multi Mixtures Buy Calibration Gas...
CG-Q34-4JK - BW Equivalent Calibration Gas 1.25% methane(50% LEL pentane equiv.), 18% oxygen, 25 ppm hydrogen sulfide, 100 ppm carbon monoxide Balance nitrogen 34L Liter cylinder (Made by Gasco)
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Draeger Equivalent 4594944 Carbon Monoxide + Hydrogen Sulfide + Pentane + Oxygen Calibration Gas Draeger Buy Online, We Ship...Draeger Equivalent 4594944 Carbon Monoxide + Hydrogen Sulfide + Pentane + Oxygen Calibration Gas Draeger Buy Online, We Ship...
4594944 - Calibration Gas Hydrogen Sulfide 25ppm, Carbon Monoxide 100ppm, Pentane 30% LEL, Oxygen 20.9% Balance Nitrogen Size 58 Liter GAL C-10 Inlet Cylinder (Made by Portagas)
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Norlab Equivalent Z105310mx49 Hydrogen Sulfide + Pentane + Carbon Monoxide Reactive Multi Mixtures Buy Calibration Gas Online -...Norlab Equivalent Z105310mx49 Hydrogen Sulfide + Pentane + Carbon Monoxide Reactive Multi Mixtures Buy Calibration Gas Online -...
Z105310MX49 - Norlab Equivalent Calibration Gas 25 ppm Hydrogen Sulfide, Pentane 30% LEL, Carbon Monoxide 100 Balance air 58L Liter cylinder (Made by Gasco)
http://www.calgasonline.com/Calgas/product.asp?pid=1276-NORLAB_Equivalent_Z105310MX49_REACTIVE_MULTI_MIXTURES_HYDROGEN_SULFIDE_+_PENTANE_+_CARBON_MONOXIDE
Evaluation of biochar for mitigation of ammonia, hydrogen sulfide, odo by Zhanibek MeiirkhanulyEvaluation of biochar for mitigation of ammonia, hydrogen sulfide, odo by Zhanibek Meiirkhanuly
Animal waste is considered to be a significant source of potentially hazardous and odorous emissions. Emissions associated with swine manure consist of gases such as ammonia (NH3), hydrogen sulfide (H2S), greenhouse gases (GHGs) and volatile organic compounds (VOCs). Comprehensive, effective, practical, and inexpensive treatment is in high demand. Biochar is mainly known for being soil amendment, has been used for remediation of heavy metals from wastewater, and as an adsorbent for gases due to its porosity. Thus, it is proposed that biochar could be used as an effective and practical treatment for gaseous emissions from stored manure. Data is needed on the performance of biochar to mitigate gaseous emissions from swine manure including simple floatation tests. The hypothesis of mechanism how biochar mitigates emissions from swine manure is that it can influence manure pH, and by that inhibit gaseous emissions transfer from liquid to air, by, for instance, preventing NH4+ transformation to gaseous NH3.
https://lib.dr.iastate.edu/etd/17743/
Hydrogen sulfide and ammonia removal from biogas using water hyacinth - derived carbon nanomaterialsHydrogen sulfide and ammonia removal from biogas using water hyacinth - derived carbon nanomaterials
he presence of hydrogen sulfide (H2S) and ammonia (NH3) in biogas pose serious human health and environmental challenges. In this study, H2S and NH3 were successfully removed from biogas using water hyacinth-derived carbon (WHC) nanomaterials. Carbonization temperature, biogas flow rate, mass of the adsorbent and activating agent (KOH/water hyacinth (WH)) ratio were found to greatly influence the efficiency of the H2S and NH3 removal. The adsorption capacity of both H2S and NH3 was found to increase with the carbonization temperature as carbon materials prepared at 450, 550, and 650°C afforded removal efficiencies of 22, 30, and 51% for H2S and 42, 50, and 74% for NH3, respectively, after contact time of 2 h. Similarly, the KOH/WHC ratio showed huge impact on the adsorptive removal of the two species. WH materials carbonized at 650°C and activated at 700°C using 1:4, 1:2, and 1:1 KOH/WHC ratios showed removal efficiencies of 80, 84, and 93% for H2S and 100, 100, and 100% for NH3, ...
http://repository.seku.ac.ke/handle/123456789/3538
DISSERTATIONS.SE: Importance of bacterial hydrogen sulfide in the pathogenesis of periodontal diseases
Search and download thousands of Swedish university dissertations (essays). Full text. Free. Dissertation: Importance of bacterial hydrogen sulfide in the pathogenesis of periodontal diseases.
https://www.dissertations.se/dissertation/c90006dd62/
Premium Chloramines/Hydrogen Sulfide Reduction water filter cartridge 10 BB| APEC WaterPremium Chloramines/Hydrogen Sulfide Reduction water filter cartridge 10 BB| APEC Water
The point-of-entry FI-CHLORAMINE10-BB water filters utilize advanced catalytic granular activated carbon which effectively remove chloramine and hydrogen sulfide from the water and treat up to 8,000 gallons of water.
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Hydrogen Sulfide Companies and Suppliers for the University / Academia / Research industry serving Marshall Islands |...Hydrogen Sulfide Companies and Suppliers for the University / Academia / Research industry serving Marshall Islands |...
List of Hydrogen Sulfide companies, manufacturers and suppliers for the University / Academia / Research industry serving Marshall Islands on Environmental XPRT
https://www.environmental-expert.com/companies/keyword-hydrogen-sulfide-870/serving-marshall-islands/industry-served-university-academia-research
Hydrogen Sulfide Companies and Suppliers for the Water and Wastewater industry serving Marshall Islands | Environmental XPRTHydrogen Sulfide Companies and Suppliers for the Water and Wastewater industry serving Marshall Islands | Environmental XPRT
List of Hydrogen Sulfide companies, manufacturers and suppliers for the Water and Wastewater industry serving Marshall Islands on Environmental XPRT
https://www.environmental-expert.com/companies/keyword-hydrogen-sulfide-870/serving-marshall-islands/industry-served-water-and-wastewater
Buy Sodium sulfide 5g online at lowest prices | ChemDirectBuy Sodium sulfide 5g online at lowest prices | ChemDirect
Buy sodium sulfide from ChemDirect.com marketplace. Also knows as sodium sulfide (na2s),disodium monosulfide,na2s,disodium sulphide,sodium sulfide (van),hsdb 772,sodium sulfide\\, anhydrous (dot),ai3-09342,sodium sulfide\\, 90+%\\, pure,sodum sulfuret,na2-s
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Why Protein Makes Your Farts Stink and How to Treat Flatulence - TheWetLab
Why Protein Makes Your Farts Stink:. The main reason why protein causes gas is because it contains amino acids which are known to produce hydrogen sulfide. Hydrogen sulfide smells worse than normal stinkiness.. You may have heard that eating rotten eggs will make your stinky breath smell better. However, there is no evidence that eating rotten egg will cure your flatulence problem.. Hydrogen sulfide is a natural odorant that occurs naturally in the body. Its produced when certain amino acids react with sulfur compounds found in our air.. These reactions occur when we eat foods containing these amino acids. When we digest food, these amino acid residues are broken down into smaller pieces called peptides (small chains). These small peptides then bond together to form larger molecules like proteins and other complex molecules such as fats and sugars. Some of these bonds are made stronger than others. For example, some amino acids bind strongly to one another while others dont. If you eat a steak ...
http://wetlab.org/why-protein-makes-your-farts-stink-and-how-to-treat-flatulence-2/
Sodium Sulfide in Delhi,Sodium Sulfide Manufacturers and Suppliers from indiaSodium Sulfide in Delhi,Sodium Sulfide Manufacturers and Suppliers from india
Business Directory for Sodium Sulfide Suppliers in Delhi - Get contact details of Sodium Sulfide Manufacturers, Wholesale Sodium Sulfide Exporters, Best Sodium Sulfide Traders & Distributors Across the Delhi.
http://www.indianyellowpages.com/delhi/sodium-sulfide.htm
Toxic hydrogen sulphide shapes brain anatomy - Research - Royal Holloway, University of LondonToxic hydrogen sulphide shapes brain anatomy - Research - Royal Holloway, University of London
The teleost brain is an energetically costly organ, which raises the question of how brain anatomy is shaped by divergent ecological factors in contrasting (extreme/resource-limited vs. benign) environments. A previous study compared different ecotypes of the teleost Poecilia mexicana in the Tacotalpa drainage system and found that cave fish had a smaller eye diameter, a smaller optic tectum and larger telencephalic lobes relative to ancestral surface-dwelling fish. Smaller eyes and a smaller optic tectum but larger telencephalic lobes were also found in fish from a sulphidic surface habitat near one of the caves, which the authors hypothesized to result from limited vision in turbid sulphide waters. In this study, we tested if repeated transitions along a replicated, natural toxicity gradient result in repeated (convergent) anatomical changes of the teleost brain. We compared ecotypes in the P. mexicana species complex that have independently evolved increased tolerance to hydrogen sulphide ...
https://pure.royalholloway.ac.uk/portal/en/publications/toxic-hydrogen-sulphide-shapes-brain-anatomy
Preventing hydrogen sulphide corrosion in electrical and electronic equipment | The Engineer The EngineerPreventing hydrogen sulphide corrosion in electrical and electronic equipment | The Engineer The Engineer
Electrical and electronic equipment and components that are used in adverse work environments, e.g. the oil and gas industry, waste water treatment plants, and the pulp and paper industry, where corrosive gases such as hydrogen sulphide are found cause severe corrosion and the rapid deterioration of the electronic components and equipment, including connectors and switches used in these and other work environments. One economical way to prevent or inhibit corrosion from destroying electronics and electrical components is to use CORR-EX LCP-177, ultra thin-film, water-displacing, lubricant and corrosion-inhibiting compound.. ...
https://www.theengineer.co.uk/supplier-network/product/preventing-hydrogen-sulphide-corrosion-in-electrical-and-electronic-equipment/
Blanchards treatment | definition of Blanchards treatment by Medical dictionaryBlanchards treatment | definition of Blanchards treatment by Medical dictionary
Looking for online definition of Blanchard's treatment in the Medical Dictionary? Blanchard's treatment explanation free. What is Blanchard's treatment? Meaning of Blanchard's treatment medical term. What does Blanchard's treatment mean?
http://medical-dictionary.thefreedictionary.com/Blanchard
Beards treatment | definition of Beards treatment by Medical dictionaryBeards treatment | definition of Beards treatment by Medical dictionary
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http://medical-dictionary.thefreedictionary.com/Beard%27s+treatment
Production of Blended Fuel from Renewable Feedstocks - Patent applicationProduction of Blended Fuel from Renewable Feedstocks - Patent application
0055]The vapor stream 36 from product separator 34 contains the gaseous portion of the isomerization effluent which comprises at least hydrogen, carbon monoxide, hydrogen sulfide, carbon dioxide and propane and is directed to a system of amine absorbers to separate carbon dioxide and hydrogen sulfide from the vapor stream. Because of the cost of hydrogen, it is desirable to recycle the hydrogen to deoxygenation reactor 4, but it is not desirable to circulate the carbon dioxide or an excess of sulfur containing components. In order to separate sulfur containing components and carbon dioxide from the hydrogen, vapor stream 36 is passed through a system of at least two amine absorbers, also called scrubbers, starting with the first amine absorber zone 56. The amine chosen to be employed in first amine scrubber 56 is capable of selectively removing at least both the components of interest, carbon dioxide and the sulfur components such as hydrogen sulfide. Suitable amines are available from DOW and ...
http://www.patentsencyclopedia.com/app/20090301930
H2S-Mediated Thermal and Photochemical Methane Activation - Baltrusaitis - 2013 - ChemPhysChem - Wiley Online LibraryH2S-Mediated Thermal and Photochemical Methane Activation - Baltrusaitis - 2013 - ChemPhysChem - Wiley Online Library
Sustainable, low-temperature methods for natural gas activation are critical in addressing current and foreseeable energy and hydrocarbon feedstock needs. Large portions of natural gas resources are still too expensive to process due to their high content of hydrogen sulfide gas (H2S) mixed with methane, deemed altogether as sub-quality or sour gas. We propose a unique method of activation to form a mixture of sulfur-containing hydrocarbon intermediates, CH3SH and CH3SCH3, and an energy carrier such as H2. For this purpose, we investigated the H2S-mediated methane activation to form a reactive CH3SH species by means of direct photolysis of sub-quality natural gas. Photoexcitation of hydrogen sulfide in the CH4+H2S complex resulted in a barrierless relaxation by a conical intersection to form a ground-state CH3SH+H2 complex. The resulting CH3SH could further be coupled over acidic catalysts to form higher hydrocarbons, and the resulting H2 used as a fuel. This process is very different from ...
http://onlinelibrary.wiley.com/doi/10.1002/cphc.201300828/abstract?globalMessage=0
Patent US20050118081 - Process for the recovery of value metals from base metal sulfide ores - Google PatentsPatent US20050118081 - Process for the recovery of value metals from base metal sulfide ores - Google Patents
A process for leaching a value metal from a base metal sulfide ore, comprising the step of leaching the ore with a lixiviant comprising a chloride, an oxidant and hydrochloric acid is disclosed. The leaching is controlled, by use of low concentrations of hydrochloric acid and a redox potential, to effect formation of hydrogen sulfide from the base metal sulfide ore. The hydrogen sulfide is stripped from the leach solution, thereby reducing the amount of sulfate generated in the leach to very low levels. The leaching may also be conducted to limit the co-dissolution of platinum group metals and gold with the base value metals. The leach forms a value metal-rich leachate and a solids residue. The solids residue may be subsequently leached to recover the platinum group metals and gold. The value metal-rich leachate can be is oxidized and neutralized to recover the value base metals. In an embodiment, the chloride is magnesium chloride and lixiviant solution is regenerated.
http://www.google.com/patents/US20050118081?dq=5,381,459
Jumping Jack Flash Hypothesis: Its A Gas Gas Gas: 2014 - NOV - Other StoriesJumping Jack Flash Hypothesis: Its A Gas Gas Gas: 2014 - NOV - Other Stories
Note: This is the second major metropolitan area in recorded history to be told to shelter-in-place because of hydrogen sulfide. The first was in late 2012 in coastal Kuwait City (Kuwait), mentioned in the 2012-10-17 update. So something that had never happened before has now happened twice in two years. Add to that all of the other hydrogen sulfide incidents: the stinkfests in Southern California, the rotten egg odor that hit Santa Monica after a naturally-occurring methane release in Santa Monica Bay (but methane is odorless, so it wasnt methane), the rotten egg odor that blew in off the ocean and hit Quincy (Massachusetts), the rotten egg odor that hit the Inner Harbor in coastal Baltimore (Maryland) that killed all the fish, the boating town in Australia thats turning into a ghost town because of hydrogen sulfide blowing in off the ocean, the thousands of people fleeing and puking from toxic gas of unknown origin in coastal Rayong (Thailand), and many, many HazMat events ...
http://jumpingjackflashhypothesis.blogspot.com/2014/12/2014-nov-other-stories.html
US20050163571A1 - Gas recovery from landfills using aqueous foam - Google Patents
Hydrogen sulfide in a landfill is reduced by dispersing a hydrogen sulfide control agent, such as an iron compound, into the landfill. The hydrogen sulfide control agent may be a component of an injected foam. Gas is also recovered from the landfill by introducing water into the landfill, as part of the foam, to promote digestion of organic matter.
https://patents.google.com/patent/US20050163571?oq=5%2C579%2C517
GOT1 gene - Genetics Home Reference - NIHGOT1 gene - Genetics Home Reference - NIH
Biosynthesis of L-glutamate from L-aspartate or L-cysteine. Important regulator of levels of glutamate, the major excitatory neurotransmitter of the vertebrate central nervous system. Acts as a scavenger of glutamate in brain neuroprotection. The aspartate aminotransferase activity is involved in hepatic glucose synthesis during development and in adipocyte glyceroneogenesis. Using L-cysteine as substrate, regulates levels of mercaptopyruvate, an important source of hydrogen sulfide. Mercaptopyruvate is converted into H(2)S via the action of 3-mercaptopyruvate sulfurtransferase (3MST). Hydrogen sulfide is an important synaptic modulator and neuroprotectant in the brain. ...
https://ghr.nlm.nih.gov/gene/GOT1
Sodium sulfide nonahydrate, ACS, 98.0% min, Alfa Aesar™ 250g Sodium sulfide nonahydrate, ACS, 98.0% min, Alfa Aesar™Sodium sulfide nonahydrate, ACS, 98.0% min, Alfa Aesar™ 250g Sodium sulfide nonahydrate, ACS, 98.0% min, Alfa Aesar™
Sodium sulfide nonahydrate, ACS, 98.0% min, Alfa Aesar™ 250g Sodium sulfide nonahydrate, ACS, 98.0% min, Alfa Aesar™ Inorganic Sodium Compounds
https://www.fishersci.co.uk/shop/products/sodium-sulfide-nonahydrate-acs-98-0-min-alfa-aesar/11398058
The Evolving Placenta: The primrose wayThe Evolving Placenta: The primrose way
A recent study (here) indicates that H2S may play a role in regulating blood flow on the fetal side of human placenta. One of the enzymes that generates H2S (CSE) is found in the smooth muscle layer of stem villus arteries. Moreover it was shown using the H2S donor NaHS that the molecule is able to dilate the fetal placental circulation. Because the placenta lacks innervation, signaling molecules like H2S are likely to be important in the regulation of blood flow. The study found evidence that CSE expression is decreased in pathological pregnancies such as preeclampsia and fetal growth restriction. ...
http://placentalevolution.blogspot.de/2013/06/the-primrose-way.html
UTJECAJ SUMPOROVODIKA (H2S) NA VIGOR SJEMENA KRASTAVCA (Cucumis sativus L.) U UVJETIMA SOLNOG STRESA | Croatian Digital Theses...UTJECAJ SUMPOROVODIKA (H2S) NA VIGOR SJEMENA KRASTAVCA (Cucumis sativus L.) U UVJETIMA SOLNOG STRESA | Croatian Digital Theses...
Osmopriming is a technique in which the seed of different plant species is partially or fully hydrated with water or solutions with different osmotic potentials aiming to intensify physiological processes, what improves and excellerates germination. In our study cucumber seed (Cucumis sativus L.) from three different production years was osmoprimed with 300 μM solutions of two different hydrogen sulphide donors: slowly releasing donor GYY4137 and fast releasing donor NaHS. After imbibition, seed was dried and germinated on filter paper moistened with 25 mM NaCl solution or water, respectively. Main hypothesis was that H2S influences germination and vigour of cucumber seedlings germinated in the presence of salt, and that applied H2S donors (NaHS and GYY4137) will differ significantly in their effect. In treatment with NaHS the oldest seed from production year 2009/2010 had significantly lower standard germination and germination energy, while in treatment with GYY4137 differences among seed ...
https://zir.nsk.hr/en/islandora/object/pfos%3A263
If your systolic stinks, rotten egg gas may be whyIf your systolic stinks, rotten egg gas may be why
Because gasotransmitters are highly conserved in mammals, the findings of the research are believed to have broad applications to human physiology and disease.. In terms of relaxing blood vessels, it looks like hydrogen sulfide might be as important as nitric oxide, Snyder says, referring to the first gasotransmitter that two decades ago was discovered to regulate blood pressure.. Just because these two gas molecules perform similar functions, doesnt mean theyre redundant, says Wang, the papers principal author. Nature has added on layer upon layer of complexity to provide a better and tighter control of body function - in this case, of blood pressure.. Studying gaseous messengers can be tricky, explains Snyder, an authority on nitric oxide (NO) whose lab in 1990 discovered that the enzyme triggering NO production is activated by a protein mechanism known as calcium-calmodulin.. When a nerve fires, it releases a bit of neurotransmitter. Then it fires again, very quickly, and releases ...
http://www.innovations-report.com/html/reports/medicine-health/systolic-stinks-039-rotten-egg-039-gas-121024.html
European Network on Gasotransmitters - Prof. Harry van GoorEuropean Network on Gasotransmitters - Prof. Harry van Goor
Snijder PM, de Boer RA, Bos EM, van den Born JC, Ruifrok WP, Vreeswijk-Baudoin I, van Dijk MC, Hillebrands JL, Leuvenink HG, van Goor H : Gaseous hydrogen sulfide protects against myocardial ischemia-reperfusion injury in mice partially independent from hypometabolism. PLoS One 10;8 :e63291, ...
http://gasotransmitters.eu/index.php/the-action/management-committee/harry-van-goor.html
Ammonium sulfide - Simple English Wikipedia, the free encyclopediaAmmonium sulfide - Simple English Wikipedia, the free encyclopedia
Ammonium sulfide, also known as the stink bomb is made up of a solution of ammonium sulfide in water, sealed inside a glass ampoule (a small bottle-like container used to store a liquid securely). When the ampoule is broken, ammonia and hydrogen sulfide gases are released from the solution. These chemicals have a very strong and unpleasant smell. Ammonium sulfide is a very toxic chemical. It is also explosive and highly flammable. It is added to cigarettes. ...
https://simple.wikipedia.org/wiki/Ammonium_sulfide
Patente US5512260 - Reduction of sulfur content in a gaseous stream - Google PatentesPatente US5512260 - Reduction of sulfur content in a gaseous stream - Google Patentes
A process for reducing sulfur content in a gaseous stream with the production of elemental sulfur by first treating the gaseous steam with hydrogenation and hydrolysis to convert substantially all of the sulfur components therein to hydrogen sulfide. Then reducing the water content of the gaseous stream to optimize chemical equilibrium. Thereafter, the gaseous steam is contacted in an oxidation reactor with an acid catalyst at a temperature of about 150 C. to about 350 C. to convert hydrogen sulfide to elemental sulfur. The product gas leaving the oxidation reactor is cooled to separate elemental sulfur by condensation. The acid catalyst is a shape selective zeolite, a metal-exchanged or impregnated alumina, or a mixture thereof. The alumina is gamma phase alumina impregnated with from about 0.2 wt % to about 2.0 wt % metal.
http://www.google.es/patents/US5512260?dq=flatulence
Hydrogen sulfideHydrogen sulfide
Treating metal sulfides with strong acid or electrolysis often liberates hydrogen sulfide. Hydrogen sulfide is also responsible ... Hydrogen sulfide is slightly denser than air. A mixture of H 2S and air can be explosive. Hydrogen sulfide burns in oxygen with ... The sulfide anion S2− is not formed in aqueous solution. Hydrogen sulfide reacts with metal ions to form metal sulfides, which ... Hydrogen sulfide generated in this process is typically converted to elemental sulfur using the Claus Process. Hydrogen sulfide ...
https://en.wikipedia.org/wiki/Hydrogen_sulfide
Hydrogen sulfide sensorHydrogen sulfide sensor
A hydrogen sulfide sensor or H2S sensor is a gas sensor for the measurement of hydrogen sulfide. The H2S sensor is a metal ... by a reversible change in resistance caused by adsorption and desorption of hydrogen sulfide in a film with hydrogen sulfide ... The H2S sensor is used to detect hydrogen sulfide in the hydrogen feed stream of fuel cells to prevent catalyst poisoning and ... This type of sensor has been under constant development because of the toxic and corrosive nature of hydrogen sulfide: ...
https://en.wikipedia.org/wiki/Hydrogen_sulfide_sensor
Hydrogen sulfide chemosynthesisHydrogen sulfide chemosynthesis
... is a form of chemosynthesis which uses hydrogen sulfide. It is common in hydrothermal vent ... using hydrogen sulfide as their energy source) and produce sugars and amino acids. Some reactions produce sulfur: hydrogen ... hydrogen sulfide chemosynthesis produces solid globules of sulfur in the process. In bacteria capable of chemoautotrophy (a ... sulfide chemosynthesis: 18H2S + 6CO2 + 3O2 → C6H12O6 (carbohydrate) + 12H2O + 18S Instead of releasing oxygen gas while fixing ...
https://en.wikipedia.org/wiki/Hydrogen_sulfide_chemosynthesis
Hydrogen-sulfide S-acetyltransferaseHydrogen-sulfide S-acetyltransferase
... hydrogen-sulfide S-acetyltransferase. This enzyme is also called hydrogen-sulfide acetyltransferase. BRADY RO, STADTMAN ER ( ... a hydrogen-sulfide S-acetyltransferase (EC 2.3.1.10) is an enzyme that catalyzes the chemical reaction acetyl-CoA + hydrogen ... the two substrates of this enzyme are acetyl-CoA and hydrogen sulfide, whereas its two products are CoA and thioacetate. This ...
https://en.wikipedia.org/wiki/Hydrogen-sulfide_S-acetyltransferase
Biological functions of hydrogen sulfideBiological functions of hydrogen sulfide
In trisomy 21 (Down syndrome) the body produces an excess of hydrogen sulfide. Hydrogen sulfide is also involved in the disease ... the brain's hydrogen sulfide concentration was found to be reduced, and administering hydrogen sulfide alleviated the condition ... Hydrogen sulfide is produced in small amounts by some cells of the mammalian body and has a number of biological signaling ... Like nitric oxide, hydrogen sulfide is involved in the relaxation of smooth muscle that causes erection of the penis, ...
https://en.wikipedia.org/wiki/Biological_functions_of_hydrogen_sulfide
Silver sulfideSilver sulfide
When combined with silver, hydrogen sulfide gas creates a layer of black silver sulfide patina on the silver, protecting the ... "Control of Hydrogen Sulfide Generation , Water & Wastes Digest". www.wwdmag.com. Retrieved 2018-07-05. Frueh, A. J. (1958). The ... Silver sulfide is an inorganic compound with the formula Ag 2S. A dense black solid, it is the only sulfide of silver. It is ... Silver sulfide is insoluble in most solvents, but is degraded by strong acids. Silver sulfide is a network solid made up of ...
https://en.wikipedia.org/wiki/Silver_sulfide
SulfideSulfide
... lead sulfide and dimethyl sulfide. Hydrogen sulfide (H2S) and bisulfide (SH−) are the conjugate acids of sulfide. The sulfide ... When a sulfide burns it produces sulfur dioxide (SO2) gas. Hydrogen sulfide, some of its salts, and almost all organic sulfides ... sulfide salts convert to hydrogen sulfide: S2− + H+ → SH− SH− + H+ → H2S Oxidation of sulfide is a complicated process. ... Some metal sulfides, when exposed to a strong mineral acid, including gastric acids, will release toxic hydrogen sulfide. ...
https://en.wikipedia.org/wiki/Sulfide
Purple sulfur bacteriaPurple sulfur bacteria
"Hydrogen sulfide." http://www.npi.gov.au/resource/hydrogen-sulfide National Pollutant Inventory, Australian Government ... Harmful compounds such as methane, a greenhouse gas, and hydrogen sulfide, a pungent, toxic compound, can be found in ... www.npi.gov.au/resource/hydrogen-sulfide. Caumette, P (1993). "Ecology and physiology of phototrophic bacteria and sulfate- ... where geochemically or biologically produced hydrogen sulfide can trigger the formation of blooms of purple sulfur bacteria. ...
https://en.wikipedia.org/wiki/Purple_sulfur_bacteria
AnosmiaAnosmia
Hydrogen Sulfide. National Academies Press (US). Doty RL, Deems DA, Stellar S (August 1988). "Olfactory dysfunction in ... Dementia with Lewy bodies Tumors of the frontal lobe Antibiotics Fibromyalgia Multiple sclerosis Exposure to hydrogen sulfide ( ...
https://en.wikipedia.org/wiki/Anosmia
TrimethylaminuriaTrimethylaminuria
... hydrogen sulfide; methylmercaptan; dimethylsulfide) with each exhalation, creating a "malodorous cloud" in their vicinity. It ...
https://en.wikipedia.org/wiki/Trimethylaminuria
SerpentinizationSerpentinization
The hydrogen, methane, and hydrogen sulfide produced during serpentinization are released at these vents and provide energy ... Sulfur will be reduced to hydrogen sulfide and sulfide minerals, though significant quantities are incorporated into serpentine ... The sulfides produced include nickel-rich sulfides, such as mackinawite. Laboratory experiments have confirmed that at a ... and hydrogen sulfide. During serpentinization, large amounts of water are absorbed into the rock, increasing the volume, ...
https://en.wikipedia.org/wiki/Serpentinization
Sodium hydrosulfideSodium hydrosulfide
... with hydrogen sulfide: NaOCH2CH3 + H2S → NaSH + CH3CH2OH An alternative method involves reaction of sodium with hydrogen ... This compound is the product of the half-neutralization of hydrogen sulfide (H2S) with sodium hydroxide (NaOH). NaSH and sodium ... Eibeck, R. I. (1963). "Sodium Hydrogen Sulfide". Inorganic Syntheses. 7: 128-31. doi:10.1002/9780470132388.ch35. ISBN ... In contrast with sodium sulfide (Na2S), which is insoluble in organic solvents, NaSH, being a 1:1 electrolyte, is more soluble ...
https://en.wikipedia.org/wiki/Sodium_hydrosulfide
Potassium hydrosulfidePotassium hydrosulfide
... is synthesized by the reaction between a solution of potassium sulfide with excess hydrogen sulfide. ... Dittmer, Donald C. (2001). "Potassium Hydrogen Sulfide". In Paquette, L. (ed.). Encyclopedia of Reagents for Organic Synthesis ... It is the product of the half-neutralization of hydrogen sulfide with potassium hydroxide. The compound is used in the ... Aqueous solutions of potassium sulfide consist of a mixture of potassium hydrosulfide and potassium hydroxide. The structure of ...
https://en.wikipedia.org/wiki/Potassium_hydrosulfide
Antibe TherapeuticsAntibe Therapeutics
Biological Uses of Hydrogen Sulfide Third International Conference on Hydrogen Sulfide in Biology and Medicine (H2S 2014) (All ... Hydrogen sulfide has been shown to enhance the resolution of injury and repair of damage arising from tissue inflammation. ... "Why Hydrogen Sulfide? - Antibe Therapeutics". Archived from the original on 2021-08-12. Retrieved 2021-11-23. Bhatia, Madhav ( ... The mechanism of action of Antibe's drugs is the delivery of minute amounts of hydrogen sulfide to sites of inflammation within ...
https://en.wikipedia.org/wiki/Antibe_Therapeutics
Titanium(III) sulfideTitanium(III) sulfide
With hot hydrochloric acid it forms hydrogen sulfide. Holleman, A. F.; Wiberg, E.; Wiberg, N. (2007). Lehrbuch der ... and water-stable at normal temperatures and unlike titanium disulfide does not give off an odor of hydrogen sulfide. In hot ... Titanium(III) sulfide is obtained from titanium disulfide, TiS2, by heating at 1000 °C in a vacuum or by reduction with ... It can also be synthesized by direct combination of the elements under pressure or at 800 °C. Titanium(III) sulfide is a black ...
https://en.wikipedia.org/wiki/Titanium(III)_sulfide
Aluminium sulfideAluminium sulfide
This can begin when the sulfide is exposed to the atmosphere. The hydrolysis reaction generates gaseous hydrogen sulfide (H2S ... Aluminum sulfide or aluminium sulphide is a chemical compound with the formula Al2S3. This colorless species has an interesting ... Compressing aluminum sulfide to 2-65 bar results in the δ phase where vacancies are arranged in a superlattice of tetragonal ... Aluminum sulfide is readily prepared by ignition of the elements 2 Al + 3 S → Al2S3 This reaction is extremely exothermic and ...
https://en.wikipedia.org/wiki/Aluminium_sulfide
Hydrogen bondHydrogen bond
Sabin, John R. (1971). "Hydrogen bonds involving sulfur. I. Hydrogen sulfide dimer". J. Am. Chem. Soc. 93 (15): 3613-3620. doi: ... Hydrogen bonds are represented as H···Y system, where the dots represent the hydrogen bond. Liquids that display hydrogen ... than are donor-type hydrogen bonds, beginning on the same oxygen's hydrogens. For example, hydrogen fluoride-which has three ... The dynamics of hydrogen bond structures in water can be probed by the IR spectrum of OH stretching vibration. In the hydrogen ...
https://en.wikipedia.org/wiki/Hydrogen_bond
Fart lightingFart lighting
Hydrogen sulfide[unreliable source?] "Farts and Flatulence". h2g2.[unreliable source?] Levitt M. D. and Bond J. H. (1978) in ... These substances are detectable by olfactory neurons in concentrations as low as 10 parts per billion, hydrogen sulfide being ... Hydrogen sulfide is also flammable (ΔHc = −519 kJ/mol), and burns to 2 H 2S(g) + 3 O 2(g) → 2 SO 2(g) + 2 H 2O(g) Some of the ... The odor associated with flatus is due to hydrogen sulfide, skatole, indole, volatile amines, and short-chain fatty acids also ...
https://en.wikipedia.org/wiki/Fart_lighting
Magnesium sulfideMagnesium sulfide
MgS is formed by the reaction of sulfur or hydrogen sulfide with magnesium. It crystallizes in the rock salt structure as its ... MgS reacts with water to give hydrogen sulfide and magnesium hydroxide. In the BOS steelmaking process, sulfur is the first ... MgS evolves hydrogen sulfide upon contact with moisture. Bradford, C.; O'Donnell, C. B.; Urbaszek, B.; Balocchi, A.; Morhain, C ... Magnesium sulfide is formed, which then floats on the molten iron and is removed. MgS is a wide band-gap direct semiconductor ...
https://en.wikipedia.org/wiki/Magnesium_sulfide
SurströmmingSurströmming
Hydrogen sulfide is also produced. The salt raises the osmotic pressure of the brine above the zone where bacteria responsible ... hydrogen sulfide), rancid-butter (butyric acid), and vinegary (acetic acid). Due to these gases, a thousand cans of ...
https://en.wikipedia.org/wiki/Surströmming
Hana KimuraHana Kimura
She had ingested hydrogen sulfide. So that was the cause of death and not too much else is going to be released because her ... Dave Meltzer claimed three days later that the cause of death was hydrogen sulfide ingestion. By December 2020 the death was ... According to Meltzer, Kimura died after ingesting hydrogen sulfide. He explained that concerns about her health first popped up ...
https://en.wikipedia.org/wiki/Hana_Kimura
Nonsteroidal anti-inflammatory drugNonsteroidal anti-inflammatory drug
Hydrogen sulfide NSAID hybrids prevent the gastric ulceration/bleeding associated with taking the NSAIDs alone. Hydrogen ... Guo W, Cheng ZY, Zhu YZ (October 2013). "Hydrogen sulfide and translational medicine". Acta Pharmacologica Sinica. 34 (10): ... sulfide is known to have a protective effect on the cardiovascular and gastrointestinal system. NSAIDs should be used with ...
https://en.wikipedia.org/wiki/Nonsteroidal_anti-inflammatory_drug
Natural rubberNatural rubber
This produces malodourous hydrogen sulfide. The industry can mitigate these bad odours with scrubber systems. Rubber is the ... hydrogen sulfide, nitrogen, and low-molecular-weight fatty acids (C2-C5). When latex concentrate is produced from rubber, ...
https://en.wikipedia.org/wiki/Natural_rubber
Hydrogen thioperoxideHydrogen thioperoxide
... has been synthesized in labs by photolysis of a mixture of ozone and hydrogen sulfide frozen in argon at ... Kolloru, Gopi K. (25 February 2015). Hydrogen Sulfide in Redox Biology. Academic Press. p. 274. ISBN 9780128016237. (Articles ... The chemical has been described as the "missing link" between hydrogen peroxide and hydrogen disulfide (H-S-S-H), though it is ... is sulfur monoxide reacting with atomic hydrogen to form HOS and HSO which in turn can add another hydrogen atom. However this ...
https://en.wikipedia.org/wiki/Hydrogen_thioperoxide
GasotransmitterGasotransmitter
Relative to carbon monoxide and hydrogen sulfide, NO is exceptional due to the fact it is a radical gas. NO is highly reactive ... November 2007). "Hydrogen sulfide mediates the vasoactivity of garlic". Proceedings of the National Academy of Sciences of the ... Nitric oxide and hydrogen sulfide are highly reactive with numerous molecular targets, whereas carbon monoxide is relatively ... Hydrogen sulfide (H 2S) has important signaling functions in mammalian physiology. The gas is produced enzymatically by ...
https://en.wikipedia.org/wiki/Gasotransmitter
Flavocytochrome c sulfide dehydrogenaseFlavocytochrome c sulfide dehydrogenase
This enzyme catalyses the following chemical reaction: hydrogen sulfide + 2 ferricytochrome c ⇌ {\displaystyle \ ... Flavocytochrome c sulfide dehydrogenase, also known as Sulfide-cytochrome-c reductase (flavocytochrome c) (EC 1.8.2.3), is an ... that carry out hydrogen sulfide-dependent cytochrome C reduction. The dihaem cytochrome folds into two domains, each of which ... enzyme with systematic name hydrogen-sulfide:flavocytochrome c oxidoreductase. It is found in sulfur-oxidising bacteria such as ...
https://en.wikipedia.org/wiki/Flavocytochrome_c_sulfide_dehydrogenase
Mineral springMineral spring
Sulfur springs smell of rotten eggs due to hydrogen sulfide (H2S), which is hazardous and sometimes deadly. It is a gas, and it ... "Hydrogen Sulfide in Drinking-water" (PDF). World Health Organization. 2003. Cohen, Stan (Revised 1981 edition), Springs of the ... Sulfur springs contained hydrogen sulfide gas (see also fumeroles). Salt (saline) springs contained salts of calcium, magnesium ... "PUBLIC HEALTH STATEMENT: Hydrogen Sulfide" (PDF). DEPARTMENT of HEALTH AND HUMAN SERVICES, Public Health ServiceAgency for ...
https://en.wikipedia.org/wiki/Mineral_spring
Nikolay ZelinskyNikolay Zelinsky
... where he proved for the first time that the hydrogen sulfide contained in the water was of bacterial origin. During the period ... Sulfur was removed as hydrogen sulfide. The development of petrochemistry in the USSR has led to a radical reconstruction of ... During the war years Zelinsky found a solution to this problem by passing shale oils mixed with hydrogen over platinum or ... in the synthesis of hydrocarbons from carbon monoxide and hydrogen on a cobalt catalyst, in the reactions of hydrocondensation ...
https://en.wikipedia.org/wiki/Nikolay_Zelinsky
Little Blue Run LakeLittle Blue Run Lake
"ATSDR - ToxFAQs™: Hydrogen Sulfide / Carbonyl Sulfide". www.atsdr.cdc.gov. Retrieved October 28, 2016. "Fed Up Local Citizens ... families living near the site worry about toxic dust and complain of a strong rotten egg smell from hydrogen sulfide (H2S). ...
https://en.wikipedia.org/wiki/Little_Blue_Run_Lake
Cu Y ZeoliteCu Y Zeolite
Phillipe, A.; Mathieu, P.; Tellier, J.; Voirin, R. (Union Oil Co., USA). "Desulfurization of Gases Containing Hydrogen Sulfide ... in which a variety of zeolites including the Cu-Y variant were used to remove hydrogen sulfide from gases. From then on, ... The hydrodesulfurization technique can remove thiols and sulfides, but cannot efficiently remove thiophenes, therefore the ...
https://en.wikipedia.org/wiki/Cu_Y_Zeolite
YessentukiYessentuki
Carbonic hydrogen-sulphide water of holes #1 and #2, as well as calcium-sodium hydrosulphuric sulphate-hydrocarbonate (the so- ... Alongside mineral waters, the medical establishments of Yessentuki use sulphide silt muds of Tambukan Lake (8 kilometers (5.0 ...
https://en.wikipedia.org/wiki/Yessentuki
Liquefied natural gasLiquefied natural gas
The natural gas fed into the LNG plant will be treated to remove water, hydrogen sulfide, carbon dioxide, benzene and other ... The "acidic" elements such as hydrogen sulphide (H2S) and carbon dioxide (CO2), together with oil, mud, water, and mercury, are ...
https://en.wikipedia.org/wiki/Liquefied_natural_gas
Qualitative inorganic analysisQualitative inorganic analysis
... followed by hydrogen sulfide gas. Usually it is done by passing hydrogen sulfide over the test tube for detection of 1st group ... most commonly used are hydrogen sulfide (at 0.2-0.3 M), thioacetamide (at 0.3-0.6 M), addition of hydrogen sulfide can often ... Sulfides give the rotten egg smell of H2S when treated with dilute H2SO4. The presence of sulfide is confirmed by adding lead( ... The sulfides of As3+, As5+, Sb3+, Sb5+, Sn2+, Sn4+ are soluble in yellow ammonium sulfide, where they form polysulfide ...
https://en.wikipedia.org/wiki/Qualitative_inorganic_analysis
MethanogenesisMethanogenesis
Conrad, Rolf (1999). "Contribution of hydrogen to methane production and control of hydrogen concentrations in methanogenic ... dimethyl sulfide, and methanethiol. The catabolism of the methyl compounds is mediated by methyl transferases to give methyl ... Methanogenesis effectively removes the semi-final products of decay: hydrogen, small organics, and carbon dioxide. Without ... Aerobic methane production Anaerobic digestion Anaerobic oxidation of methane Electromethanogenesis Hydrogen cycle Methanotroph ...
https://en.wikipedia.org/wiki/Methanogenesis
MetabolismMetabolism
These organisms can use hydrogen, reduced sulfur compounds (such as sulfide, hydrogen sulfide and thiosulfate), ferrous iron ( ... hydrogen, hydrogen sulfide or ferrous ions to oxygen, nitrate or sulfate. In animals, these reactions involve complex organic ... For example, some prokaryotes use hydrogen sulfide as a nutrient, yet this gas is poisonous to animals. The basal metabolic ... This reduced form of the coenzyme is then a substrate for any of the reductases in the cell that need to transfer hydrogen ...
https://en.wikipedia.org/wiki/Metabolism
Sodium azideSodium azide
... with Raney nickel or with hydrogen sulfide in pyridine. Sodium azide is a versatile precursor to other inorganic azide ... H2 It is a redox reaction in which metallic sodium gives an electron to a proton of ammonia which is reduced in hydrogen gas. ... HN3 Aqueous solutions contain minute amounts of hydrogen azide, the formation of which is described by the following ...
https://en.wikipedia.org/wiki/Sodium_azide
Extractive metallurgyExtractive metallurgy
... ions has been suggested to alter the morphology of any sulfide surface formed, allowing the sulfide mineral to leach more ... Pateli, I.M.; Thompson, D.; Alabdullah, S.S.M; Abbott, A.; Jenkin, G.R.T.; Hartley, J. (2020). "The effect of pH and hydrogen ... Most of them are mixtures of choline chloride and a hydrogen-bond donor (e.g., urea, ethylene glycol, malonic acid) or mixtures ... Metal sulfides (e.g., pyrite FeS2, arsenopyrite FeAsS, chalcopyrite CuFeS2) are normally processed by chemical oxidation either ...
https://en.wikipedia.org/wiki/Extractive_metallurgy
SulfolobusSulfolobus
For example, S. tokodaii is known to oxidize hydrogen sulfide to sulfate intracellularly. The currently accepted taxonomy is ...
https://en.wikipedia.org/wiki/Sulfolobus
PhototrophPhototroph
... oxidize chemical substances such as hydrogen sulfide rather than water.[citation needed] In an ecological context, phototrophs ... If their electron and hydrogen donors are inorganic compounds (e.g. Na 2S 2O 3, as in some purple sulfur bacteria, or H 2S, as ...
https://en.wikipedia.org/wiki/Phototroph
Marine mammalMarine mammal
Finally, sulfophilic bacteria reduce the bones releasing hydrogen sulphide enabling the growth of chemoautotrophic organisms, ...
https://en.wikipedia.org/wiki/Marine_mammal
Swan Lake Nature SanctuarySwan Lake Nature Sanctuary
The other problem associated with an abundance of growth is the production of methane and hydrogen sulfide gases by anoxic ...
https://en.wikipedia.org/wiki/Swan_Lake_Nature_Sanctuary
DifluorodisulfanedifluorideDifluorodisulfanedifluoride
hydrogen fluoride catalyses disproportionation to sulfur and sulfur tetrafluoride by forming a reactive intermediate HSF ... FSSF3 reacts with copper at high temperatures producing copper fluoride and copper sulfide. SF3SF can be made in the laboratory ...
https://en.wikipedia.org/wiki/Difluorodisulfanedifluoride
Upper Occoquan Sewage AuthorityUpper Occoquan Sewage Authority
... and Generation of hydrogen sulfide in the bottoms waters of the waters of the reservoir. In 1968-1969 a study conducted by ... Preventing the reduction of sulfate to sulfide in the bottom layers of the reservoir; Possibly preventing the release of ...
https://en.wikipedia.org/wiki/Upper_Occoquan_Sewage_Authority
VampirococcusVampirococcus
High concentrations of calcium sulfate and hydrogen sulfide make the lakes anoxic, providing an anaerobic environment to ...
https://en.wikipedia.org/wiki/Vampirococcus
HydroborationHydroboration
... proceeds via a four-membered transition state: the hydrogen and the boron atoms added on the same face of the ... See Borane-dimethylsulfide complex Zaidlewicz, Marek; Baum, Ofir; Srebnik, Morris (2006). "Borane Dimethyl Sulfide". ... Hydroboration is typically anti-Markovnikov, i.e. the hydrogen adds to the most substituted carbon of the double bond. That the ... In organic chemistry, hydroboration refers to the addition of a hydrogen-boron bond to certain double and triple bonds ...
https://en.wikipedia.org/wiki/Hydroboration
List of minerals recognized by the International Mineralogical Association (T)List of minerals recognized by the International Mineralogical Association (T)
631] [no] [no] Tsnigriite (IMA1991-051) 2.LA.55 [632] [633] [634] (IUPAC: nonasilver antimony tritelluride tri(sulfide,selenide ... hydrogen lithium disodium [aluminium hydro diphosphate]) Taneyamalite (IMA1977-042) 9.DH.65 [56] [57] [58] Tangdanite (tyrolite ... iron sulfide) Trolleite (Y: 1868) 8.BB.45 [594] [595] [596] (IUPAC: tetraluminium trihydro triphosphate) Trona (Y: 1747) 5.CB. ... dibismuth ditelluride sulfide) Tetraferriannite (mica: IMA1998 s.p., 1925) 9.EC.20 [241] [242] [no] (IUPAC: potassium triiron( ...
https://en.wikipedia.org/wiki/List_of_minerals_recognized_by_the_International_Mineralogical_Association_(T)
Edward R. Roybal Learning CenterEdward R. Roybal Learning Center
Construction was halted in 1999 after tests revealed that methane and hydrogen sulfide gases in the land, stemming from the oil ...
https://en.wikipedia.org/wiki/Edward_R._Roybal_Learning_Center
Thioacetic acidThioacetic acid
... is prepared by the reaction of acetic anhydride with hydrogen sulfide: ( CH 3 C ( O ) ) 2 O + H 2 S ⟶ CH 3 C ( ... Reflecting the influence of hydrogen-bonding, the boiling point (93 °C) and melting points are 20 and 75 K lower than those for ...
https://en.wikipedia.org/wiki/Thioacetic_acid
Wood-Ljungdahl pathwayWood-Ljungdahl pathway
This pathway enables these organisms to use hydrogen as an electron donor, and carbon dioxide as an electron acceptor and as a ... Sulfate reducing bacteria oxidize acetate completely to CO2 and H2 coupled with the reduction of sulfate to sulfide. When ... the Wolfe Cycle functions as a methanogenesis pathway to reduce CO2 into methane with electron donors such as hydrogen and ...
https://en.wikipedia.org/wiki/Wood–Ljungdahl_pathway
Lava filterLava filter
This community of microorganisms, known as the periphyton break down the odor components in the air, such as hydrogen sulfide. ... at the filter bottom contains odour components as well as sulfuric acid from the biological oxidation of hydrogen sulfide. ...
https://en.wikipedia.org/wiki/Lava_filter
ChloroalanineChloroalanine
"Synthesis of D-cysteine from 3-chloro-D-alanine and hydrogen sulfide by 3-chloro-D-alanine hydrogen chloride-lyase (deaminating ...
https://en.wikipedia.org/wiki/Chloroalanine
Environmental impact of fashionEnvironmental impact of fashion
... hydrogen sulfide, and sulfur dioxide. The creation of polyester creates pollution,[citation needed] in addition to waste from ...
https://en.wikipedia.org/wiki/Environmental_impact_of_fashion
Point of Ayr Gas TerminalPoint of Ayr Gas Terminal
The gas is sweetened with an amine solvent to remove sulphur compounds down to 3.3 ppm hydrogen sulphide and 35 ppm mercaptans ...
https://en.wikipedia.org/wiki/Point_of_Ayr_Gas_Terminal
Lamellibrachia luymesiLamellibrachia luymesi
Hydrogen sulfide can be lethal for many marine organisms, and the tubeworms help minimise the sulfide levels and maintain a ... These are located in a centrally located "trophosome". Lamellibrachia luymesi provides the bacteria with hydrogen sulfide and ... luymesi uses a posterior extension of its body called the root to take up hydrogen sulfide from the seep sediments. L. luymesi ... It also needs to ensure that no build up of the sulfate and hydrogen ion waste products occurs, which would inhibit the ...
https://en.wikipedia.org/wiki/Lamellibrachia_luymesi
GasochromismGasochromism
... hydrogen sulphide and carbon monoxide. Monk, M.S., Mortimer, R.J., & Rosseinsky, D.R., Electrochromism and Electrochromic ... The gasochromic technology is used commercially in reversible smart windows and gas sensing of oxygen, hydrogen, nitric oxide, ... commonly oxygen and hydrogen, producing reversible color changes. ...
https://en.wikipedia.org/wiki/Gasochromism
Atmosphere of MercuryAtmosphere of Mercury
... ionized hydrogen sulfide). Their abundances relative to sodium are about 0.2 and 0.7, respectively. Other ions such as H3O+ ( ... Mercury's exospheric hydrogen and helium are believed to come from the Solar wind, while the oxygen is likely to be of crustal ... For exospheric atomic hydrogen, the temperature appears to be about 420 K, a value obtained by both Mariner 10 and MESSENGER. ... The near-surface concentrations of these elements were estimated to vary from 230 cm−3 for hydrogen to 44,000 cm−3 for oxygen, ...
https://en.wikipedia.org/wiki/Atmosphere_of_Mercury
Sodium hypochloriteSodium hypochlorite
Bleach can react violently with hydrogen peroxide and produce oxygen gas: H2O2 (aq) + NaOCl (aq) → NaCl (aq) + H2O (aq) + O2 (g ... Sodium hypochlorite can also oxidize organic sulfides to sulfoxides or sulfones, disulfides or thiols to sulfonyl halides, ... Contact of sodium hypochlorite solutions with metals may evolve flammable hydrogen gas. Containers may explode when heated due ...
https://en.wikipedia.org/wiki/Sodium_hypochlorite
Gadolinium oxysulfideGadolinium oxysulfide
When Gadolinium oxysulfide comes in contact with mineral acids, hydrogen sulfide can be produced. Rossner, W., M. Ostertag, and ... a mixed oxide-sulfide of gadolinium. The main use of gadolinium oxysulfide is in ceramic scintillators. Scintillators are used ... Sulfides, Phosphors and scintillators, Mixed anion compounds). ...
https://en.wikipedia.org/wiki/Gadolinium_oxysulfide
SulfoxideSulfoxide
... s are typically prepared by oxidation of sulfides, sometimes referred to as sulfoxidation. hydrogen peroxide is a ... For example, dimethyl sulfide is oxidized to dimethyl sulfoxide and then further to dimethyl sulfone. Unsymmetrical sulfides ... Gama Á, Flores-López LZ, Aguirre G, Parra-Hake M, Hellberg LH, Somanathan R (2003). "Oxidation of sulfides to chiral sulfoxides ... Sulfoxides are oxidized derivatives of sulfides. Examples of important sulfoxides are alliin, a precursor to the compound that ...
https://en.wikipedia.org/wiki/Sulfoxide
Hydrogen Sulfide | NIOSH | CDCHydrogen Sulfide | NIOSH | CDC
Exposure to hydrogen sulfide may cause irritation to the eyes and respiratory system. ... Hydrogen sulfide (H₂S) is a colorless gas with a strong odor of rotten eggs. ... Hydrogen sulfide (H₂S) is a colorless gas with a strong odor of rotten eggs. Exposure to hydrogen sulfide may cause irritation ... EPA Acute Exposure Guideline Levels: Hydrogen Sulfideexternal icon. *EPA Toxicological Review of Hydrogen Sulfidepdf icon ...
https://www.cdc.gov/niosh/topics/hydrogensulfide/default.html
Hydrogen Sulfide | ToxFAQs™ | ATSDR
Just a few breaths of air containing high levels of hydrogen sulfide gas can cause death. Lower, longer-term exposure can cause ... Hydrogen sulfide occurs naturally and is also produced by human activities. ... What happens to hydrogen sulfide when it enters the environment?. * Hydrogen sulfide can be released into air, water, and soil ... How likely is hydrogen sulfide to cause cancer?. Hydrogen sulfide has not been shown to cause cancer in humans, and its ...
https://wwwn.cdc.gov/tsp/ToxFAQs/ToxFAQsDetails.aspx?faqid=388&toxid=67
Hydrogen sulfideHydrogen sulfide
1981)‎. Hydrogen sulfide. World Health Organization. https://extranet.who.int/iris/restricted/handle/10665/37261 ...
https://extranet.who.int/iris/restricted/handle/10665/37261
Hydrogen sulfide-d2Hydrogen sulfide-d2
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database ...
https://webbook.nist.gov/cgi/cbook.cgi?ID=C13536942
Air Monitoring for Hydrogen Sulfide | SCDHECAir Monitoring for Hydrogen Sulfide | SCDHEC
Air Monitoring for Hydrogen Sulfide. While there are no regulatory exposure limits outside of the workplace for hydrogen ... 1ATSDR Toxicological Profile on Hydrogen Sulfide: https://www.atsdr.cdc.gov/ToxProfiles/tp114-a.pdf 2AEGL for Hydrogen Sulfide ... Hydrogen Sulfide2. Classification. 10 min. 30 min. 1 hour. 4 hour. 8 hour. ... New Indy Odor Investigation Air Monitoring for Hydrogen Sulfide New Indy Reports & Documents Frequently Asked Questions ...
https://scdhec.gov/environment/environmental-sites-projects-permits-interest/new-indy-odor-investigation/air-monitoring-hydrogen-sulfide
Hydrogen sulfide posts potential concern at Atwood LakeHydrogen sulfide posts potential concern at Atwood Lake
Project employees will take readings to detect any presence of H2S gases around the outlet works and surrounding areas.
https://www.timesreporter.com/story/news/2021/06/14/hydrogen-sulfide-posts-potential-concern-atwood-lake/7684289002/
Interaction of Hydrogen Sulfide with Nitric Oxide in the Cardiovascular SystemInteraction of Hydrogen Sulfide with Nitric Oxide in the Cardiovascular System
... hydrogen sulfide (H,sub,2,/sub,S) and nitric oxide (NO) are now recognized as the predominant members of a new family of ... hydrogen cyanide and hydrogen sulfide: chemical mechanism and physiological significance," Journal of Bioenergetics and ... Interaction of Hydrogen Sulfide with Nitric Oxide in the Cardiovascular System. B. V. Nagpure1and Jin-Song Bian. 1 ... L. Li, P. Rose, and P. K. Moore, "Hydrogen sulfide and cell signaling," Annual Review of Pharmacology and Toxicology, vol. 51, ...
https://www.hindawi.com/journals/omcl/2016/6904327/
Salt Water and Hydrogen Sulfide Corrosion Fatigue of Work-Hardened, Threaded ElementsSalt Water and Hydrogen Sulfide Corrosion Fatigue of Work-Hardened, Threaded Elements
... ... Under the combined action of corrosion fatigue in the presence of a hydrogen sulfide saline solution these values were reduced ... The most damaging corrosive medium consisted of a salt water solution through which hydrogen sulfide gas was bubbled. Lower ...
https://www.astm.org/jte10189j.html
Post-Pandemic Era-Global Hydrogen Sulfide Market 2015-2026, ... | MENAFN.COMPost-Pandemic Era-Global Hydrogen Sulfide Market 2015-2026, ... | MENAFN.COM
Post-Pandemic Era-Global Hydrogen Sulfide Market 2015-2026, ..., MENAFN.COM. .navbar-collapse.collapse { display: block ! ... Major Type of Hydrogen Sulfide Covered in XYZResearch report:. Pure Gas. Gas Mixtures. Application Segments Covered in ... This research report indicated that the global Hydrogen Sulfide market was valued at XXX million in 2019, and it is expected to ... Competitive Analysis; Who are the Major Players in Hydrogen Sulfide Market?. Air Liquide. The Linde Group. Praxair. Air ...
https://menafn.com/1104956570/Post-Pandemic-Era-Global-Hydrogen-Sulfide-Market-2015-2026-With-Breakdown-Data-Of-Capacity-Sales-Production-Export-Import-Revenue-Price-Cost-And-Gross-Margin
Hydrogen Sulfide | Washington State Department of HealthHydrogen Sulfide | Washington State Department of Health
Hydrogen sulfide is a colorless, flammable gas that smells like rotten eggs at low concentration levels in the air. ... Hydrogen sulfides chemical formula is H2S.. How can I be exposed to hydrogen sulfide?. *Breathing contaminated air that ... How can hydrogen sulfide affect my health?. Hydrogen sulfide is both an irritant and a chemical asphyxiant (it will take the ... What is hydrogen sulfide?. Hydrogen sulfide is a colorless, flammable gas that smells like rotten eggs at low concentration ...
https://doh.wa.gov/zai/node/5722
Hydrogen sulphide Archives - Ashtead TechnologyHydrogen sulphide Archives - Ashtead Technology
2022 Ashtead Technology. Designed & developed by mtc. ...
https://www.ashtead-technology.com/product-category/hydrogen-sulphide-h2s/
Frontiers | Hydrogen Sulfide Regulates Energy Production to Delay Leaf Senescence Induced by Drought Stress in ArabidopsisFrontiers | Hydrogen Sulfide Regulates Energy Production to Delay Leaf Senescence Induced by Drought Stress in Arabidopsis
Hydrogen sulfide (H2S) is a novel gasotransmitter in both mammals and plants. H2S plays important roles in various plant ... Hydrogen sulfide (H2S) is a novel gasotransmitter in both mammals and plants. H2S plays important roles in various plant ... 2009). Hydrogen sulfide promotes root organogenesis in Ipomoea batatas, Salix matsudana and Glycine max. J. Integr. Plant Biol. ... Hydrogen Sulfide Regulates Energy Production to Delay Leaf Senescence Induced by Drought Stress in Arabidopsis. Zhuping Jin1, ...
https://www.frontiersin.org/articles/10.3389/fpls.2018.01722/full
AHS monitoring workers after hydrogen sulfide leak at Edmonton refinery: Suncor - Edmonton | Globalnews.caAHS monitoring workers after hydrogen sulfide leak at Edmonton refinery: Suncor - Edmonton | Globalnews.ca
"Hydrogen sulphide is extremely toxic," the document says. "Workers are exposed when they inhale hydrogen sulphide in air, and ... OHSSuncor EnergyAlberta Occupational Health and Safetyoil refineryHydrogen sulfideH2SEdmonton Suncor refineryHydrogen sulfide ... Rees added hydrogen sulfide was no longer leaking and that an investigation will take place to confirm how the leak occurred. ... "At approximately 12 p.m. this afternoon, Suncor responded to a release of hydrogen sulfide from a unit at our Edmonton refinery ...
https://globalnews.ca/news/4339732/ahs-monitoring-workers-after-hydrogen-sulfide-release-at-edmonton-refinery-suncor/
British Library EThOS: The electrochemistry of hydrogen sulfide in room temperature ionic liquidsBritish Library EThOS: The electrochemistry of hydrogen sulfide in room temperature ionic liquids
NADH was examined as a mediating species for hydrogen sulfide detection.. *The mediated detection of hydrogen sulfide utilizing ... The electrochemistry of hydrogen sulfide in room temperature ionic liquids Author: OMahony, Aoife Maria ISNI: 0000 0004 2695 ... The reduction of hydrogen sulfide in various room temperature ionic liquids at a platinum electrode, measured using cyclic ... The oxidation of hydrogen sulfide in various room temperature ionic liquids at a platinum electrode measured using cyclic ...
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526497
Five Common Myths About Hydrogen Sulfide Safety - VeriforceFive Common Myths About Hydrogen Sulfide Safety - Veriforce
Five Common Myths About Hydrogen Sulfide Safety. This article was originally published on EHS Daily Advisor. Read the article ... Are your workers and business protected against the potential dangers of hydrogen sulfide (H2S) exposure? It may surprise you ... The presence of H2S can also lead to sulfide stress corrosion cracking of metals, which can significantly compromise the ...
https://veriforce.com/resource/five-common-myths-about-hydrogen-sulfide-safety
Hydrogen sulfide removal processes - OpenAGRICOLAHydrogen sulfide removal processes - OpenAGRICOLA
Hydrogen sulfide removal processes. Main Author:. Stecher, Paul G.. Format:. Book. Language:. English. Subjects:. Air ...
https://openagricola.nal.usda.gov/catalog/CAT72360030
Hydrogen sulfide - Ion Science UKHydrogen sulfide - Ion Science UK
Hydrogen sulfide. hydrogen sulfide, hydrosulfuric acid, sewer gas, sulfuretted hydrogen, hydrogen sulphide ... How to detect Hydrogen sulfide. Formula: H2S , CAS: 7783-06-4. Synonyms: hydrogen sulfide, hydrosulfuric acid, sewer gas, ... View products detecting gaseous Hydrogen sulfide. TVOC 2 Continuous VOC Gas Detector. TVOC 2 is a fixed, continuous VOC gas ...
https://ionscience.com/en/gases/hydrogen-sulfide/
OSHA recommendations to protect workers from hydrogen sulfide exposures | 2014-07-12 | ISHNOSHA recommendations to protect workers from hydrogen sulfide exposures | 2014-07-12 | ISHN
Eliminate the source of hydrogen sulfide whenever possible. If the source cannot be eliminated, control exposures by: Using ... Use personal protective equipment if engineering controls and work practices alone cannot reduce hydrogen sulfide to safe ... Evaluate Exposure Identify processes that could release or produce hydrogen sulfide. This includes identifying . . . ... Hydrogen Sulfide. OSHA Chemical Sampling Information webpage. Lists sampling techniques and methods for hydrogen sulfide. ...
https://www.ishn.com/articles/99056-osha-recommendations-to-protect-workers-from-hydrogen-sulfide-exposures
hydrogen sulfidehydrogen sulfide
Posts Tagged hydrogen sulfide. Fracking Boom Pours Toxic Cloud Over South Texans. Posted in Air Quality, Climate Change, ... hydrogen sulfide, nitrogen oxide, sulfur dioxide, TCEQ, Texas, texas attorny general, texas city refinery, Texas Commission on ... hydrogen sulfide, karnes city, Karnes County, natural gas, Texas, toxic on March 1, 2014 , ... hydrogen sulfide, sulfur dioxide and nitrogen oxides. ...
http://www.texasvox.org/tag/hydrogen-sulfide/
Electrodeposited nickel-sulfide films as competent hydrogen evolution catalysts in neutral water - Journal of Materials...Electrodeposited nickel-sulfide films as competent hydrogen evolution catalysts in neutral water - Journal of Materials...
... and robust electrocatalysts of the hydrogen evolution reaction (HER) is a crucial step toward the conversion and storage of ... Electrodeposited nickel-sulfide films as competent hydrogen evolution catalysts in neutral water N. Jiang, L. Bogoev, M. Popova ... Electrodeposited nickel-sulfide films as competent hydrogen evolution catalysts in neutral water† ... In this work, we report that nickel-sulfide (Ni-S) films prepared by facile potentiodynamic deposition are active HER catalysts ...
https://pubs.rsc.org/en/Content/ArticleLanding/2014/TA/C4TA04339A
Honeywell BW Solo, non-wireless - hydrogen sulfide, extended rangHoneywell BW Solo, non-wireless - hydrogen sulfide, extended rang
ALTAIR 2X Gas Detectors can be configured with the following sensor CO, CO-HC (High Concentration), CO-H2 (Hydrogen Resistant ...
https://www.conceptcontrols.com/us/honeywellbw-solo-non-wireless-hydrogen-sulfide-extended-range-h2s-bws-h2-y.html
A Fatal Poisoning of Four Workers at a Farm: The Distribution of Hydrogen Sulfide (H2S) and Thiosulfate(TS) in Different...A Fatal Poisoning of Four Workers at a Farm: The Distribution of Hydrogen Sulfide (H2S) and Thiosulfate(TS) in Different...
A Fatal Poisoning of Four Workers at a Farm: The Distribution of Hydrogen Sulfide (H2S) and Thiosulfate(TS) in Different ...
https://www.aafs.org/research/fatal-poisoning-four-workers-farm-distribution-hydrogen-sulfide-h2s-and-thiosulfatets
Hypoxia-induced arterial chemoreceptor stimulation and Hydrogen sulfide: Too much or too little?<...
Haouzi, P., Bell, H., & Van De Louw, A. (2011). Hypoxia-induced arterial chemoreceptor stimulation and Hydrogen sulfide: Too ... Haouzi, P, Bell, H & Van De Louw, A 2011, Hypoxia-induced arterial chemoreceptor stimulation and Hydrogen sulfide: Too much or ... Hypoxia-induced arterial chemoreceptor stimulation and Hydrogen sulfide : Too much or too little? / Haouzi, Philippe; Bell, ... Hypoxia-induced arterial chemoreceptor stimulation and Hydrogen sulfide: Too much or too little? Respiratory Physiology and ...
https://pennstate.pure.elsevier.com/en/publications/hypoxia-induced-arterial-chemoreceptor-stimulation-and-hydrogen-s
Hydrogen sulfide (H2S) is a familiar toxic gas that smells of - Stem cell application on skin cancer research
Hydrogen sulfide (H2S) is a familiar toxic gas that smells of. * Post author By exposed ... Hydrogen sulfide (H2S) is a familiar toxic gas that smells of rotten eggs. activity of CSE reaches its optimum potential 873225 ...
http://www.exposed-skin-care.net/2018/09/27/hydrogen-sulfide-h2s-is-a-familiar-toxic-gas-that-smells-of/
The Effects of Hydrogen Sulfide | Construction WorkThe Effects of Hydrogen Sulfide | Construction Work
Although the foul odor (rotten eggs) of hydrogen sulfide is easily detected at low concentrations, it is an unreliable warning ... In high concentrations of hydrogen sulfide, a worker may collapse with little or no warning. ... The Effects of Hydrogen Sulfide POTENTIAL EFFECTS OF HYDROGEN SULFIDE EXPOSURE. PPM*. Effects and Symptoms. Time. ...
https://constructionwork.com/resource/the-effects-of-hydrogen-sulfide/
hydrogen sulphide - IADC Dredginghydrogen sulphide - IADC Dredging
The webinar features safety experts who provide you insights on how safety risks such as hydrogen sulphide (H2S), unexploded ...
https://www.iadc-dredging.com/tag/hydrogen-sulphide/
DETECTOR TUBE, HYDROGEN SULFIDE, 10/BX | Zefon InternationalDETECTOR TUBE, HYDROGEN SULFIDE, 10/BX | Zefon International
Oldoinyo Lengai Volcanic Ash for Removal of Hydrogen Sulfide and Ammonia from BiogasOldoinyo Lengai Volcanic Ash for Removal of Hydrogen Sulfide and Ammonia from Biogas
... and its potency to adsorb hydrogen sulfide (H2S) and ammonia (NH3) from biogas was investigated. The ... 30. Abdullah, A.H., Mat, R., Abd Aziz, A.S. and Roslan, F. (2017) Use of Kaolin as Adsorbent for Removal of Hydrogen Sulphide ... 44. Tseng, T.K., Chang, H.C., Chu, H. and Chen, H.T. (2008) Hydrogen Sulfide Removal from Coal Gas by the Metal-Ferrite ... 7. Al Mamun, M.R. and Torii, S. (2015) Removal of Hydrogen Sulfide (H2S) from Biogas Using Zero-Valent Iron. Journal of Clean ...
https://file.scirp.org/Html/1-1740578_83740.htm

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