Sulfides. Medical search

Chemical groups containing the covalent sulfur bonds -S-. The sulfur atom can be bound to inorganic or organic moieties.

'Allyl compounds' are organic substances that contain the allyl group (CH2=CH-CH2-) as a functional component, which can be found in various forms such as allyl alcohol, allyl chloride, and allyl esters.

Elements with partially filled d orbitals. They constitute groups 3-12 of the periodic table of elements.

Inorganic or organic compounds that contain sulfur as an integral part of the molecule.

One of the Liliaceae used as a spice (SPICES) and traditional remedy. It contains alliin lyase and alliin, which is converted by alliin lyase to allicin, the pungent ingredient responsible for the aroma of fresh cut garlic.

Hot springs on the ocean floor. They are commonly found near volcanically active places such as mid-oceanic ridges.

Organic compounds that have the general formula R-SO-R. They are obtained by oxidation of mercaptans (analogous to the ketones). (From Hackh's Chemical Dictionary, 4th ed)

Organic and inorganic compounds that contain iron as an integral part of the molecule.

Any solid objects moving in interplanetary space that are smaller than a planet or asteroid but larger than a molecule. Meteorites are any meteoroid that has fallen to a planetary surface. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

Any of the monobasic inorganic or organic acids of sulfur with the general formula RSO(OH). (From McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)

A mass of organic or inorganic solid fragmented material, or the solid fragment itself, that comes from the weathering of rock and is carried by, suspended in, or dropped by air, water, or ice. It refers also to a mass that is accumulated by any other natural agent and that forms in layers on the earth's surface, such as sand, gravel, silt, mud, fill, or loess. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1689)

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).

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.

Inorganic salts of sulfuric acid.

A metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85. It is an essential constituent of HEMOGLOBINS; CYTOCHROMES; and IRON-BINDING PROTEINS. It plays a role in cellular redox reactions and in the transport of OXYGEN.

The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)

The salinated water of OCEANS AND SEAS that provides habitat for marine organisms.

One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.

Allyl-containing sulfides in garlic increase uncoupling protein content in brown adipose tissue, and noradrenaline and adrenaline secretion in rats. (1/1610)

The effects of garlic supplementation on triglyceride metabolism were investigated by measurements of the degree of thermogenesis in interscapular brown adipose tissue (IBAT), and noradrenaline and adrenaline secretion in rats fed two types of dietary fat. In Experiment 1, rats were given isoenergetic high-fat diets containing either shortening or lard with or without garlic powder supplementation (8 g/kg of diet). After 28 d feeding, body weight, plasma triglyceride levels and the weights of perirenal adipose tissue and epididymal fat pad were significantly lower in rats fed diets supplemented with garlic powder than in those fed diets without garlic powder. The content of mitochondrial protein and uncoupling protein (UCP) in IBAT, and urinary noradrenaline and adrenaline excretion were significantly greater in rats fed a lard diet with garlic powder than in those fed the same diet without garlic. Other than adrenaline secretion, differences due to garlic were significant in rats fed shortening, also. In Experiment 2, the effects of various allyl-containing sulfides present in garlic on noradrenaline and adrenaline secretion were evaluated. Administration of diallyldisulfide, diallyltrisulfide and alliin, organosulfur compounds present in garlic, significantly increased plasma noradrenaline and adrenaline concentrations, whereas the administration of disulfides without allyl residues, diallylmonosulfide and S-allyl-L-cysteine did not increase adrenaline secretion. These results suggest that in rats, allyl-containing sulfides in garlic enhance thermogenesis by increasing UCP content in IBAT, and noradrenaline and adrenaline secretion. (+info)

Nitrate removal in closed-system aquaculture by columnar denitrification. (2/1610)

The columnar denitrification method of nitrate-nitrogen removal from high-density, closed system, salmonid aquaculture was investigated and found to be feasible. However, adequate chemical monitoring was found to be necessary for the optimization and quality control of this method. When methanol-carbon was not balanced with inlet nitrate-nitrogen, the column effluent became unsatisfactory for closed-system fish culture due to the presence of excess amounts of nitrite, ammonia, sulfide, and dissolved organic carbon. Sulfide production was also influenced by column maturity and residence time. Methane-carbon was found to be unsatisfactory as an exogenous carbon source. Endogenous carbon could not support high removal efficiencies. Freshwater columns adpated readily to an artificial seawater with a salinity of 18% without observable inhibition. Scanning electron microscopy revealed that the bacterial flora was mainly rod forms with the Peritricha (protozoa) dominating as the primary consumers. Denitrifying bacteria isolated from freshwater columns were tentatively identified as species of Pseudomonas and Alcaligenes. A pilot plant column was found to behave in a manner similar to the laboratory columns except that nitrite production was never observed. (+info)

Dense populations of a giant sulfur bacterium in Namibian shelf sediments. (3/1610)

A previously unknown giant sulfur bacterium is abundant in sediments underlying the oxygen minimum zone of the Benguela Current upwelling system. The bacterium has a spherical cell that exceeds by up to 100-fold the biovolume of the largest known prokaryotes. On the basis of 16S ribosomal DNA sequence data, these bacteria are closely related to the marine filamentous sulfur bacteria Thioploca, abundant in the upwelling area off Chile and Peru. Similar to Thioploca, the giant bacteria oxidize sulfide with nitrate that is accumulated to +info)

Tetradecylthioacetic acid (a 3-thia fatty acid) impairs secretion of oleic acid-induced triacylglycerol-rich lipoproteins in CaCo-2 cells. (4/1610)

The fatty acid analogue tetradecylthioacetic acid (TTA) has previously been shown to decrease triacylglycerol secretion in CaCo-2 cells (Gedde-Dahl et al., J. Lipid Res. 36 (1995) 535-543). The present study was designed to further elucidate the effect of TTA on lipoprotein production in CaCo-2 cells. TTA did not affect oleic acid-induced triacylglycerol synthesis, but it significantly decreased secretion of newly synthesized triacylglycerol when compared to cells incubated with oleic acid alone or oleic acid in combination with palmitic acid. In contrast, pulse-chase experiments showed no difference in the amount of labeled triacylglycerol secreted from cells exposed to either fatty acid combination during the chase period, indicating that TTA did not affect the secretory process in general. Cells incubated with TTA alone secreted triacylglycerol present at 1.025+info)

Thiolated recombinant human tumor necrosis factor-alpha protects against Plasmodium berghei K173-induced experimental cerebral malaria in mice. (5/1610)

The introduction of reactive thiol groups in recombinant human tumor necrosis factor (TNF) alpha (rhTNF-alpha) by the reagent succinimidyl-S-acetylthioacetate resulted in the formation of a chemically stabilized rhTNF-alpha trimer (rhTNFalpha-AT; as determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis). rhTNFalpha-AT showed a substantially enhanced protective efficacy against the development of experimental murine cerebral malaria (ECM) after intravenous injection compared to the protective efficacy of nonmodified rhTNF-alpha. Administration of thiolated rhTNF-alpha with protected thiol groups (rhTNFalpha-ATA; no stabilized trimers in vitro) exhibited the same protective efficacy against ECM, while in vitro bioactivity was reduced. Parasitemia was significantly suppressed in rhTNF-treated mice that were protected against ECM but not in treated mice that developed ECM. Protection against ECM was not related to increased concentrations in plasma of soluble TNF receptor 1 and 2 directly after injection or at the moment of development of ECM in nontreated mice. The results indicate that thiolation of rhTNF-alpha leads to the formation of stable trimers with increased potential in vivo. (+info)

A fission yeast gene for mitochondrial sulfide oxidation. (6/1610)

A cadmium-hypersensitive mutant of the fission yeast Schizosaccharomyces pombe was found to accumulate abnormally high levels of sulfide. The gene required for normal regulation of sulfide levels, hmt2(+), was cloned by complementation of the cadmium-hypersensitive phenotype of the mutant. Cell fractionation and immunocytochemistry indicated that HMT2 protein is localized to mitochondria. Sequence analysis revealed homology between HMT2 and sulfide dehydrogenases from photosynthetic bacteria. HMT2 protein, produced in and purified from Escherichia coli, was soluble, bound FAD, and catalyzed the reduction of quinone (coenzyme Q2) by sulfide. HMT2 activity was also detected in isolated fission yeast mitochondria. We propose that HMT2 functions as a sulfide:quinone oxidoreductase. Homologous enzymes may be widespread in higher organisms, as sulfide-oxidizing activities have been described previously in animal mitochondria, and genes of unknown function, but with similarity to hmt2(+), are present in the genomes of flies, worms, rats, mice, and humans. (+info)

Health aspects of the curing of synthetic rubbers. (7/1610)

A commonly used tread rubber formulation was cured in the laboratory under conditions simulating vulcanization in the Bag-O-Matic press. Volatile emissions were collected on charcoal and analyzed by combined GC-mass spectrometry. The compounds identified were either contaminants present in the raw material or reaction products. Some of these compounds were also identified in charcoal tube samples collected in the atmosphere of the industrial operations. Estimates based on the loss of weight of rubber during curing were used to predict airborne concentrations and compared to the concentrations actually found. The literature of the toxicity of raw materials and effluents was reviewed, and no acute or chronic toxicological effects would be anticipated. Information concerning potential carcinogenicity was not available and could not be evaluated. (+info)

Novel derivatives of phenethyl-5-bromopyridylthiourea and dihydroalkoxybenzyloxopyrimidine are dual-function spermicides with potent anti-human immunodeficiency virus activity. (8/1610)

Sexually active women represent the fastest growing HIV/AIDS (human immunodeficiency virus/acquired immunodeficiency syndrome) risk group. In an effort to develop a vaginal microbicidal contraceptive potentially capable of preventing HIV transmission as well as providing fertility control, we have synthesized novel non-nucleoside inhibitors (NNIs) of HIV-1 reverse transcriptase (RT) and examined them for dual-function anti-HIV and spermicidal activity. Structure-based drug design by use of a computer docking procedure for the NNI binding pocket generated from nine RT-NNI crystal structures led to the synthesis of three novel NNIs: N-[2-(2, 5-dimethoxyphenethyl)]-N'-[2-(5-bromopyridyl)]-thiourea (D-PBT); N-[2-(2-fluorophenethyl)]-N'-[2-(5-bromopyridyl)]-thiourea (F-PBT); and 5-isopropyl-2-[(methylthiomethyl)thio]-6-(benzyl)-pyrimidin-4-(1H)-on e (S-DABO). The anti-HIV activity of these NNIs was compared with that of trovirdine and virucidal/spermicide, nonoxynol-9 (N-9), by measuring viral RT activity and p24 antigen production as markers of viral replication using HTLVIIIB-infected human peripheral blood mononuclear cells (PBMCs). The effects on sperm motion kinematics and sperm membrane integrity were examined by computer-assisted sperm analysis and by confocal laser scanning microscopy (CLSM), respectively. The growth-inhibitory effects of NNI versus N-9 against normal human ectocervical and endocervical epithelial cells were tested using the MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide) assay. All three NNIs were potent inhibitors of purified recombinant HIV RT and abrogated HIV replication in PBMCs at nanomolar concentrations (IC50 < 1 nM) when compared with N-9 or trovirdine (IC50 values of 2.2 microM and 0.007 microM, respectively). Two NNIs, F-PBT and S-DABO, also exhibited concentration- and time-dependent spermicidal activity. The drug concentration required to inhibit sperm motility by 50% (EC50 values) for the lead compound F-PBT versus N-9 was 147 microM and 81 microM, respectively. Sperm-immobilizing activity induced by F-PBT and S-DABO was rapid (t1/2 = 7-13 min) and irreversible. Unlike that of N-9, spermicidal activity of F-PBT and S-DABO was not accompanied by loss of acrosomal membrane as detected by fluorescent-lectin binding assay and CLSM. Whereas N-9 was cytotoxic to normal human ectocervical and endocervical cells at spermicidal doses, both F-PBT and S-DABO were selectively spermicidal. We conclude that as potent anti-HIV agents with spermicidal activity and reduced cytotoxicity, F-PBT and S-DABO show unique clinical potential to become the active ingredients of a vaginal contraceptive for women who are at high risk for acquiring HIV by heterosexual vaginal transmission. (+info)

In the context of medicine and toxicology, sulfides refer to inorganic or organic compounds containing the sulfide ion (S2-). Sulfides can be found in various forms such as hydrogen sulfide (H2S), metal sulfides, and organic sulfides (also known as thioethers).

Hydrogen sulfide is a toxic gas with a characteristic rotten egg smell. It can cause various adverse health effects, including respiratory irritation, headaches, nausea, and, at high concentrations, loss of consciousness or even death. Metal sulfides, such as those found in some minerals, can also be toxic and may release hazardous sulfur dioxide (SO2) when heated or reacted with acidic substances.

Organic sulfides, on the other hand, are a class of organic compounds containing a sulfur atom bonded to two carbon atoms. They can occur naturally in some plants and animals or be synthesized in laboratories. Some organic sulfides have medicinal uses, while others may pose health risks depending on their concentration and route of exposure.

It is important to note that the term "sulfide" has different meanings in various scientific contexts, so it is essential to consider the specific context when interpreting this term.

Allyl compounds are organic compounds that contain the allyl group, which is a functional group with the formula CH2=CH-CH2-. The allyl group consists of a methylene bridge (CH2-) flanked by a carbon-carbon double bond (-CH=). Allyl compounds can be derived from allyl alcohol, allyl chloride, or other allyl halides and can participate in various chemical reactions due to the reactivity of the double bond. They are used in organic synthesis, pharmaceuticals, and agrochemicals.

Transition elements, in the context of medical definitions, refer to a group of metallic elements that are characterized by their incomplete d series of orbitals. These elements include scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), and zinc (Zn). Some definitions also include the lanthanide and actinide series.

These elements are essential to life, with iron being a key component of hemoglobin, and other transition metals playing crucial roles in various enzymatic reactions and as cofactors for many proteins. Transition elements are also widely used in medical devices, such as stainless steel implants, and in pharmaceuticals, such as platinum-based chemotherapeutic agents.

Sulfur compounds refer to chemical substances that contain sulfur atoms. Sulfur can form bonds with many other elements, including carbon, hydrogen, oxygen, and nitrogen, among others. As a result, there is a wide variety of sulfur compounds with different structures and properties. Some common examples of sulfur compounds include hydrogen sulfide (H2S), sulfur dioxide (SO2), and sulfonic acids (R-SO3H).

In the medical field, sulfur compounds have various applications. For instance, some are used as drugs or drug precursors, while others are used in the production of medical devices or as disinfectants. Sulfur-containing amino acids, such as methionine and cysteine, are essential components of proteins and play crucial roles in many biological processes.

However, some sulfur compounds can also be harmful to human health. For example, exposure to high levels of hydrogen sulfide or sulfur dioxide can cause respiratory problems, while certain organosulfur compounds found in crude oil and coal tar have been linked to an increased risk of cancer. Therefore, it is essential to handle and dispose of sulfur compounds properly to minimize potential health hazards.

Garlic (Allium sativum) is not a medical term, but rather a species of plant that belongs to the onion family. It is a widely used culinary ingredient and traditional medicine. The medicinal properties are believed to come from the sulfur-containing compounds, such as allicin, which are formed when garlic is crushed or chopped.

While garlic is not a medical treatment itself, it has been studied for its potential health benefits in various areas, including cardiovascular disease, cancer prevention, and immune function support. However, more research is needed to confirm these effects and establish recommended dosages. It's important to consult with healthcare professionals before starting any new supplement regimen, including garlic.

I'm sorry for any confusion, but the term "hydrothermal vents" is not typically used in medical definitions. Hydrothermal vents are a geological phenomenon found on the ocean floor, where heated water rich in minerals from the Earth's crust escapes into the ocean. They are of interest in various scientific fields, including geology, marine biology, and astrobiology, but they do not have a direct relevance to medical definitions.

Sulfoxides are organic compounds characterized by the functional group consisting of a sulfur atom bonded to two oxygen atoms and a carbon atom. The general structure is R-S(=O)O-R', where R and R' represent alkyl or aryl groups. They are often formed by the oxidation of sulfides, which contain a sulfur atom bonded to two carbon atoms. Sulfoxides have a trigonal pyramidal geometry at the sulfur atom due to the presence of two electron-withdrawing oxygen atoms. They exhibit properties of both polar and nonpolar compounds, making them useful as solvents and intermediates in organic synthesis.

Iron compounds refer to chemical substances that contain iron (Fe) combined with other elements. Iron is an essential mineral for the human body, playing a crucial role in various bodily functions such as oxygen transport, DNA synthesis, and energy production.

There are several types of iron compounds, including:

1. Inorganic iron salts: These are commonly used in dietary supplements and fortified foods to treat or prevent iron deficiency anemia. Examples include ferrous sulfate, ferrous gluconate, and ferric iron.
2. Heme iron: This is the form of iron found in animal products such as meat, poultry, and fish. It is more easily absorbed by the body compared to non-heme iron from plant sources.
3. Non-heme iron: This is the form of iron found in plant-based foods such as grains, legumes, fruits, and vegetables. It is not as well-absorbed as heme iron but can be enhanced by consuming it with vitamin C or other organic acids.

It's important to note that excessive intake of iron compounds can lead to iron toxicity, which can cause serious health problems. Therefore, it's essential to follow recommended dosages and consult a healthcare professional before taking any iron supplements.

I'm sorry for any confusion, but "meteoroids" is not a term used in medical definitions. It is a term from the field of astronomy. Meteoroids are small particles or bits of rock that are traveling in space. When they enter the Earth's atmosphere, they can become meteors (also known as "shooting stars") and can sometimes make it to the ground as meteorites.

I apologize for any confusion, but "Sulfinic Acids" is not a term used in medical definitions. It is a term from the field of chemistry. Sulfinic acids are organic compounds that contain a functional group with the formula RSO(O)H, where R represents an alkyl or aryl group. They are important intermediates in organic synthesis and can be found in some natural sources. If you have any questions related to medical terminology or concepts, I would be happy to help!

I'm sorry for any confusion, but "geologic sediments" is not a term used in medical definitions. Geological sediments are deposits of material that accumulate over time, usually in layers, as a result of natural geological processes such as weathering, erosion, and deposition. These sediments can eventually become rock formations and provide important clues about the Earth's history, including information about past climates, environments, and life on Earth.

Oxidation-Reduction (redox) reactions are a type of chemical reaction involving a transfer of electrons between two species. The substance that loses electrons in the reaction is oxidized, and the substance that gains electrons is reduced. Oxidation and reduction always occur together in a redox reaction, hence the term "oxidation-reduction."

In biological systems, redox reactions play a crucial role in many cellular processes, including energy production, metabolism, and signaling. The transfer of electrons in these reactions is often facilitated by specialized molecules called electron carriers, such as nicotinamide adenine dinucleotide (NAD+/NADH) and flavin adenine dinucleotide (FAD/FADH2).

The oxidation state of an element in a compound is a measure of the number of electrons that have been gained or lost relative to its neutral state. In redox reactions, the oxidation state of one or more elements changes as they gain or lose electrons. The substance that is oxidized has a higher oxidation state, while the substance that is reduced has a lower oxidation state.

Overall, oxidation-reduction reactions are fundamental to the functioning of living organisms and are involved in many important biological processes.

Sulfur is not typically referred to in the context of a medical definition, as it is an element found in nature and not a specific medical condition or concept. However, sulfur does have some relevance to certain medical topics:

* Sulfur is an essential element that is a component of several amino acids (the building blocks of proteins) and is necessary for the proper functioning of enzymes and other biological processes in the body.
* Sulfur-containing compounds, such as glutathione, play important roles in antioxidant defense and detoxification in the body.
* Some medications and supplements contain sulfur or sulfur-containing compounds, such as dimethyl sulfoxide (DMSO), which is used topically for pain relief and inflammation.
* Sulfur baths and other forms of sulfur-based therapies have been used historically in alternative medicine to treat various conditions, although their effectiveness is not well-established by scientific research.

It's important to note that while sulfur itself is not a medical term, it can be relevant to certain medical topics and should be discussed with a healthcare professional if you have any questions or concerns about its use in medications, supplements, or therapies.

In the context of medicine and biology, sulfates are ions or compounds that contain the sulfate group (SO4−2). Sulfate is a polyatomic anion with the structure of a sphere. It consists of a central sulfur atom surrounded by four oxygen atoms in a tetrahedral arrangement.

Sulfates can be found in various biological molecules, such as glycosaminoglycans and proteoglycans, which are important components of connective tissue and the extracellular matrix. Sulfate groups play a crucial role in these molecules by providing negative charges that help maintain the structural integrity and hydration of tissues.

In addition to their biological roles, sulfates can also be found in various medications and pharmaceutical compounds. For example, some laxatives contain sulfate salts, such as magnesium sulfate (Epsom salt) or sodium sulfate, which work by increasing the water content in the intestines and promoting bowel movements.

It is important to note that exposure to high levels of sulfates can be harmful to human health, particularly in the form of sulfur dioxide (SO2), a common air pollutant produced by burning fossil fuels. Prolonged exposure to SO2 can cause respiratory problems and exacerbate existing lung conditions.

In the context of medicine, iron is an essential micromineral and key component of various proteins and enzymes. It plays a crucial role in oxygen transport, DNA synthesis, and energy production within the body. Iron exists in two main forms: heme and non-heme. Heme iron is derived from hemoglobin and myoglobin in animal products, while non-heme iron comes from plant sources and supplements.

The recommended daily allowance (RDA) for iron varies depending on age, sex, and life stage:

* For men aged 19-50 years, the RDA is 8 mg/day
* For women aged 19-50 years, the RDA is 18 mg/day
* During pregnancy, the RDA increases to 27 mg/day
* During lactation, the RDA for breastfeeding mothers is 9 mg/day

Iron deficiency can lead to anemia, characterized by fatigue, weakness, and shortness of breath. Excessive iron intake may result in iron overload, causing damage to organs such as the liver and heart. Balanced iron levels are essential for maintaining optimal health.

Stereoisomerism is a type of isomerism (structural arrangement of atoms) in which molecules have the same molecular formula and sequence of bonded atoms, but differ in the three-dimensional orientation of their atoms in space. This occurs when the molecule contains asymmetric carbon atoms or other rigid structures that prevent free rotation, leading to distinct spatial arrangements of groups of atoms around a central point. Stereoisomers can have different chemical and physical properties, such as optical activity, boiling points, and reactivities, due to differences in their shape and the way they interact with other molecules.

There are two main types of stereoisomerism: enantiomers (mirror-image isomers) and diastereomers (non-mirror-image isomers). Enantiomers are pairs of stereoisomers that are mirror images of each other, but cannot be superimposed on one another. Diastereomers, on the other hand, are non-mirror-image stereoisomers that have different physical and chemical properties.

Stereoisomerism is an important concept in chemistry and biology, as it can affect the biological activity of molecules, such as drugs and natural products. For example, some enantiomers of a drug may be active, while others are inactive or even toxic. Therefore, understanding stereoisomerism is crucial for designing and synthesizing effective and safe drugs.

Seawater is not a medical term, but it is a type of water that covers more than 70% of the Earth's surface. Medically, seawater can be relevant in certain contexts, such as in discussions of marine biology, environmental health, or water safety. Seawater has a high salt content, with an average salinity of around 3.5%, which is much higher than that of freshwater. This makes it unsuitable for drinking or irrigation without desalination.

Exposure to seawater can also have medical implications, such as in cases of immersion injuries, marine envenomations, or waterborne illnesses. However, there is no single medical definition of seawater.

Bacteria are single-celled microorganisms that are among the earliest known life forms on Earth. They are typically characterized as having a cell wall and no membrane-bound organelles. The majority of bacteria have a prokaryotic organization, meaning they lack a nucleus and other membrane-bound organelles.

Bacteria exist in diverse environments and can be found in every habitat on Earth, including soil, water, and the bodies of plants and animals. Some bacteria are beneficial to their hosts, while others can cause disease. Beneficial bacteria play important roles in processes such as digestion, nitrogen fixation, and biogeochemical cycling.

Bacteria reproduce asexually through binary fission or budding, and some species can also exchange genetic material through conjugation. They have a wide range of metabolic capabilities, with many using organic compounds as their source of energy, while others are capable of photosynthesis or chemosynthesis.

Bacteria are highly adaptable and can evolve rapidly in response to environmental changes. This has led to the development of antibiotic resistance in some species, which poses a significant public health challenge. Understanding the biology and behavior of bacteria is essential for developing strategies to prevent and treat bacterial infections and diseases.

There are several other phosphorus sulfides in addition to P4S3 and P4S10. Six of these phosphorus sulfides exist as isomers: ... "Transfer of Sulfur from Arsenic and Antimony Sulfides to Phosphorus Sulfides. Rational Syntheses of Several Less-Common P4Sn ... Phosphorus sulfides comprise a family of inorganic compounds containing only phosphorus and sulfur. These compounds have the ... All known molecular phosphorus sulfides contain a tetrahedral array of four phosphorus atoms. P4S2 is also known but is ...

https://en.wikipedia.org/wiki/Phosphorus_sulfides

... lead sulfide and dimethyl sulfide. Hydrogen sulfide (H2S) and bisulfide (SH−) are the conjugate acids of sulfide. The sulfide ... molybdenum sulfide), pentlandite (nickel sulfide), realgar (arsenic sulfide), and stibnite (antimony), sphalerite (zinc sulfide ... When a sulfide burns it produces sulfur dioxide (SO2) gas. Hydrogen sulfide, some of its salts, and almost all organic sulfides ... Examples of such naming include selenium disulfide and titanium sulfide, which contain no sulfide ions. "sulfide(2−) (CHEBI: ...

https://en.wikipedia.org/wiki/Sulfide

... descends from 8,600 to 5,600 ft (2,600 to 1,700 m). Sulphide Glacier is along the route taken when Mount ... "Sulphide Basin Falls". Northwest Waterfall Survey. Retrieved April 20, 2013. "Sulphide Creek Falls". Northwest Waterfall Survey ... Below these cascades lies Sulphide Lake, which empties over Sulphide Creek Falls, one of the highest waterfalls in North ... Sulphide Glacier is in North Cascades National Park in the U.S. state of Washington, on the south slopes of Mount Shuksan. ...

https://en.wikipedia.org/wiki/Sulphide_Glacier

The amount of diethyl sulfide produced can be controlled by varying the ratio of hydrogen sulfide to ethylene. Diethyl sulfide ... Diethyl sulfide (British English: diethyl sulphide) is an organosulfur compound with the chemical formula (CH3CH2)2S. It is a ... Diethyl sulfide is a Lewis base, classified as a soft ligand (see also ECW model). Its relative donor strength toward a series ... Diethyl sulfide is a by-product of the commercial production of ethanethiol, which is prepared by the reaction of ethylene with ...

https://en.wikipedia.org/wiki/Diethyl_sulfide

... may refer to: Arsenic trisulfide, As2S3, the mineral orpiment Arsenic pentasulfide, As2S5, similar structure to ...

https://en.wikipedia.org/wiki/Arsenic_sulfide

... is produced by roasting celestine with coke at 1100-1300 °C. The sulfate is reduced, leaving the sulfide: ... As expected for a sulfide salt of alkaline earth, the sulfide hydrolyzes readily: SrS + 2 H2O → Sr(OH)2 + H2S For this reason, ... Strontium sulfide is the inorganic compound with the formula SrS. It is a white solid. The compound is an intermediate in the ... Strontium sulfide, cameochemicals.noaa.gov J. Paul MacMillan, Jai Won Park, Rolf Gerstenberg, Heinz Wagner, Karl Köhler, Peter ...

https://en.wikipedia.org/wiki/Strontium_sulfide

... can refer to either of the following: Selenium disulfide, SeS2 Selenium hexasulfide, Se2S6 This set index ...

https://en.wikipedia.org/wiki/Selenium_sulfide

... , or mercury(II) sulfide is a chemical compound composed of the chemical elements mercury and sulfur. It is ... sulfide (mercurous sulfide), Hg 2S L. I. Berger, Semiconductor Materials (1997) CRC Press ISBN 0-8493-8912-7 Webminerals ... Newell, Lyman C.; Maxson, R. N.; Filson, M. H. (1939). "Red Mercuric Sulfide". Inorganic Syntheses. Inorganic Syntheses. Vol. 1 ... Davidson, R. S.; Willsher, C. J. (March 1979). "Mercury(II) sulphide: a photo-stable semiconductor". Nature. 278 (5701): 238- ...

https://en.wikipedia.org/wiki/Mercury_sulfide

Na2S The sulfide ion in sulfide salts such as sodium sulfide can incorporate a proton into the salt by protonation: S2− + H+ → ... Sulfide has also been employed in photocatalytic applications. Sodium sulfide is the active ingredient in Dr. Scholl's ingrown ... Sodium sulfide can be used as nucleophile in Sandmeyer type reactions. Sodium sulfide reduces1,3-dinitrobenzene derivatives to ... SH− Because of this capture of the proton ( H+), sodium sulfide has basic character. Sodium sulfide is strongly basic, able to ...

https://en.wikipedia.org/wiki/Sodium_sulfide

For example, it serves a displaceable ligand in chloro(dimethyl sulfide)gold(I). Dimethyl sulfide is used in the workup of the ... Beetroot, asparagus, cabbage, corn and seafoods produce dimethyl sulfide when cooked. Dimethyl sulfide is also produced by ... With chlorinating agents such as sulfuryl chloride, dimethyl sulfide converts to chloromethyl methyl sulfide: SO2Cl2 + (CH3)2S ... 2 H2O Dimethyl sulfide is emitted by kraft pulping mills as a side product from delignification. Dimethyl sulfide is normally ...

https://en.wikipedia.org/wiki/Dimethyl_sulfide

... can refer to either of these chemical compounds: Tin(II) sulfide, SnS Tin(IV) sulfide, SnS2 This set index article ...

https://en.wikipedia.org/wiki/Tin_sulfide

... sulfide and ytterbium metal in vacuum at 1000-1100 °C: Yb2S3 + Yb → 3YbS Ytterbium sulfide forms black crystals of cubic ... Synthesis of ytterbium sulfide can be via a reaction of pure substances in an inert atmosphere: Yb + S → YbS An alternative ... Ytterbium sulfide is a binary inorganic compound of ytterbium and sulfur with the chemical formula YbS. ... magnetic and magnetroresistivity properties of ytterbium sulfides". Journal of Magnetism and Magnetic Materials. 476: 289-296. ...

https://en.wikipedia.org/wiki/Ytterbium_sulfide

In general, the sulfides of cobalt are black, semiconducting, insoluble in water, and nonstoichiometric. Cobalt sulfides occur ... Cobalt sulfide is the name for chemical compounds with a formula CoxSy. Well-characterized species include minerals with the ... Cobalt sulfide minerals are converted to cobalt via roasting and extraction into aqueous acid. In some processes, cobalt salts ... Synthetic cobalt sulfides are widely investigated as electrocatalysts. Congiu, M.; Albano, L. G. S.; Decker, F.; Graeff, C. F. ...

https://en.wikipedia.org/wiki/Cobalt_sulfide

... may refer to: Carbon disulfide Carbon monosulfide Carbon subsulfide Sulflower This set index article lists ...

https://en.wikipedia.org/wiki/Carbon_sulfide

... is an aromatic sulfide, whose molecule consists of two phenyl groups attached to a sulfur atom. This chemical ... Diphenyl sulfide can be prepared by reduction of diphenyl sulfone. Diphenyl sulfide is used as a chemical for triarylsulfonium ... The fire of diphenyl sulfide may be extinguished with dry ice (carbon dioxide) or water spray. The vapor of diphenyl sulfide is ... Diphenyl sulfide is sensitive to light. It is flammable, and upon catching fire, emits irritating and toxic fumes and gases of ...

https://en.wikipedia.org/wiki/Diphenyl_sulfide

... has a cubic crystal similar to lithium sulfide, sodium sulfide and potassium sulfide, known as the anti- ... It is a white solid with similar properties to other alkali metal sulfides. By dissolving hydrogen sulfide into rubidium ... Rubidium sulfide reacts with sulfur in hydrogen gas to form rubidium pentasulfide, Rb2S5. Jean D'Ans, Ellen Lax: Taschenbuch ... Their space groups are F m 3 ¯ m {\displaystyle Fm{\bar {3}}m} . Rubidium sulfide has a crystal lattice unit cell dimension of ...

https://en.wikipedia.org/wiki/Rubidium_sulfide

... is formed, which then floats on the molten iron and is removed. MgS is a wide band-gap direct semiconductor ... Magnesium sulfide is an inorganic compound with the formula MgS. It is a white crystalline material but often is encountered in ... MgS is formed by the reaction of sulfur or hydrogen sulfide with magnesium. It crystallizes in the rock salt structure as its ... The chemical properties of MgS resemble those of related ionic sulfides such as those of sodium, barium, or calcium. It reacts ...

https://en.wikipedia.org/wiki/Magnesium_sulfide

In air, it easily hydrolyses to release hydrogen sulfide (rotten egg odor). Lithium sulfide is prepared by treating lithium ... 2 Li + S → Li2S The THF-soluble triethylborane adduct of lithium sulfide can be generated using superhydride. Lithium sulfide ... Lithium sulfide is the inorganic compound with the formula Li2S. It crystallizes in the antifluorite motif, described as the ... Lithium Sulfide (All articles with dead external links, Articles with dead external links from March 2022, Chemical articles ...

https://en.wikipedia.org/wiki/Lithium_sulfide

... may refer to either of two compounds of antimony and sulfur: Antimony trisulfide, Sb2S3 Antimony pentasulfide ...

https://en.wikipedia.org/wiki/Antimony_sulfide

... inclusions are a problem for tempered glass applications. After the tempering process, nickel sulfide inclusions ... "Direct Electrical Measurement of the Conversion of Metal Acetates to Metal Sulfides by Hydrogen Sulfide" Inorg. Chem., 2006, 45 ... Nickel sulfide is any inorganic compound with the formula NiSx. These compounds range in color from bronze (Ni3S2) to black ( ... O.Glemser "Nickel Sulfide" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, ...

https://en.wikipedia.org/wiki/Nickel_sulfide

... can be produced by the reaction of bromine with thiodiglycol. Dibromodiethyl sulfide takes the form of ... Dibromodiethyl sulfide is a chemical like mustard gas in which bromine replaces chlorine. It is very irritating as a vapour. ...

https://en.wikipedia.org/wiki/Dibromodiethyl_sulfide

... which consist of mixed copper-iron sulfides, are often referred to as "copper sulfides". In chemistry, a "binary copper sulfide ... Some copper sulfides are economically important ores. Prominent copper sulfide minerals include Cu2S (chalcocite) and CuS ( ... sulfide Copper(II) sulfide J.C.W. Folmer Holes in the valence band of copper chalcogenides Thesis 1981 Groningen State ... Copper sulfides describe a family of chemical compounds and minerals with the formula CuxSy. Both minerals and synthetic ...

https://en.wikipedia.org/wiki/Copper_sulfide

... into Sulphide Lake including Sulphide Basin Falls which is from melt off the Sulphide Glacier. After Sulphide Creek drains from ... Sulphide Lake is located in North Cascades National Park, in the U. S. state of Washington. Sulphide Lake lies in a cirque on ... This band is rich in the iron sulfides pyrite and pyrrhotite. Presumably this is the source of the lake's name. "Sulphide Lake ... "Sulphide Creek Falls". Northwest Waterfall Survey. Retrieved June 29, 2013. Geology and Mineral Resources of the Northern Part ...

https://en.wikipedia.org/wiki/Sulphide_Lake

Borate sulfides are chemical mixed anion compounds that contain any kind of borate and sulfide ions. They are distinct from ... Guo, Sheng-Ping; Chi, Yang; Xue, Huai-Guo (2015-12-07). "Sm 3 S 3 BO 3 : The First Sulfide Borate without S-O and B-S Bonds". ... Chi, Yang; Xue, Huai-Guo; Guo, Sheng-Ping (2020-01-21). "Designing Sulfide Borate as a Novel Type of Second-Order Nonlinear- ... and optical and magnetic properties of novel rare-earth sulfide borates RE3S3BO3 (RE = Sm, Gd)". New Journal of Chemistry. 40 ( ...

https://en.wikipedia.org/wiki/Borate_sulfide

... flows out of the lake and drops down a narrow, deeply incised rock chute forming Sulphide Creek Falls, one of ... "Sulphide Creek Prospect". Western Mining History. Retrieved 2018-05-30. "Sulphide Creek Falls". Bryan Swan and Dean Goss. World ... The creek is fed by the "massive" Sulphide and Crystal glaciers above Sulphide Lake and it runs east collecting several small ... the Sulphide Creek canyon has had "no record of descent or exploration". At the base of Sulphide Creek Falls, an unnamed ...

https://en.wikipedia.org/wiki/Sulphide_Creek

... ammonium sulfide, ethanol, acetone, or toluene. Polonium sulfide has strong reducing properties and can be oxidized by chlorine ... 1. Passing hydrogen sulfide through an acidic solution of a polonium(II) salt: PoCl 2 + H 2 S ⟶ PoS + 2 HCl {\displaystyle {\ce ... Polonium sulfide is an inorganic compound of polonium and sulfur with the chemical formula PoS. The compound is radioactive and ... Polonium sulfide is also unstable to heating. It decomposes into elemental polonium and elemental sulfur when heated to 274.85° ...

https://en.wikipedia.org/wiki/Polonium_sulfide

... may refer to: Gold(I) sulfide Gold(III) sulfide This set index article lists chemical compounds articles ...

https://en.wikipedia.org/wiki/Gold_sulfide

... refers to two compounds containing lead and sulfur: Lead(II) sulfide, PbS, containing lead in the +2 oxidation ... state, naturally occurring as the mineral galena Lead(IV) sulfide, PbS2, containing lead in the +4 oxidation state This set ...

https://en.wikipedia.org/wiki/Lead_sulfide

... is an organosulfur compound with the formula ((CH3)2NCS)2S. It is a yellow solid that is soluble in ... It is the parent member of a large class of tetraalkylthiuram sulfides. It is used as an activator in the sulfur vulcanization ... 2NCS subunits joined by a sulfide. The dihedral angle between the subunits is close to 90°. Schubart, Rüdiger (2000). " ...

https://en.wikipedia.org/wiki/Tetramethylthiuram_sulfide

A common example of a tertiary phosphine sulfide is triphenylphosphine sulfide. Phosphine sulfides are sometimes intermediates ... Phosphine sulfides are tetrahedral. Phosphine sulfides are usually prepared by the oxidation of tertiary phosphines with ... A phosphine sulfide is an organophosphorus compound with the formula R3PS. They are typically colorless, air-stable solids. ... The heat of formation of phosphine sulfides from tertiary phosphines and elemental sulfur scale with the basicity of the ...

https://en.wikipedia.org/wiki/Phosphine_sulfide

https://en.wikipedia.org/wiki/Phosphorus_sulfides

https://en.wikipedia.org/wiki/Sulfide

Carbonyl sulfide can also be called carbon oxide sulfide and carbon oxysulfide. ... Carbonyl sulfide is a colorless gas with a sulfur odor; it does not have an odor when it is free from impurities. ... What is carbonyl sulfide? Carbonyl sulfide is a colorless gas with a sulfur odor; it does not have an odor when it is free from ... Carbonyl sulfide can remain in the air for 2-10 years. * Carbonyl sulfide reacts with water to form carbon dioxide and hydrogen ...

https://wwwn.cdc.gov/tsp/ToxFAQs/ToxFAQsDetails.aspx?faqid=1429&toxid=67

Selenium Sulfide: learn about side effects, dosage, special precautions, and more on MedlinePlus ... Selenium sulfide comes in a lotion and is usually applied as a shampoo. As a shampoo, selenium sulfide usually is used twice a ... Selenium sulfide is for external use only. Do not let selenium sulfide get into your eyes, nose, or mouth, and do not swallow ... Before using selenium sulfide,. *tell your doctor and pharmacist if you are allergic to selenium sulfide or any other drugs. ...

https://medlineplus.gov/druginfo/meds/a682258.html

nowiki,kálium-szulfid; sulfur de potassi; Kaliumsulfid; Potassium sulphide; پتاسیم سولفید; 硫化钾; Potasyum sülfür; 硫化カリウム; ... Media in category "Potassium sulfide". The following 6 files are in this category, out of 6 total. ... potassium sulfide; كبريتيد البوتاسيوم; 硫化钾; 황화 칼륨; compuesto químico; 化合物; szervetlen vegyület; konposatu kimiko; کیٖمیٲیی مُرَ ... Potassium sulfide; كبريت البوتاسيوم; K2S; 硫化鉀; Dikalijum monosulfid; Kalijum-sulfid; Dikalijum-monosulfid; Dikalijum-sulfid

https://commons.wikimedia.org/wiki/Category:Potassium_sulfide

A sulfide is a compound formed when sulfur reacts directly with another, more electropositive element. ... Metals form ionic sulfides containing the S-2 ion; these are salts of hydrogen sulfide. Metal sulfides are mostly insoluble ( ... sulfide A sulfide is a compound formed when sulfur reacts directly with another, more electropositive element. ... Compounds of sulfur with nonmetals, including hydrogen sulfide, carbon dusulfide, and several sulfides of nitrogen and ...

https://www.daviddarling.info/encyclopedia/S/sulfide.html

Dipropyl sulfide Dipropyl thioether Di-n-propyl sulfide NSC78429 Propane, 1,1-thiobis- Propyl monosulfide Propyl sulfide 1- ...

https://scitoys.com/scichem/jqp020/8118.html

The absolute and relative concentrations of PGE in magmatic sulfides are explained in terms of the degree of partial melting of ... The absolute concentrations of PGE in sulfides from different deposits vary over a range of five orders of magnitude, whereas ... peridotite required to produce the parent magma and the processes of batch equilibration and fractional segregation of sulfides ... are mined predominantly from deposits that have formed by the segregation of molten iron-nickel-copper sulfides from silicate ...

https://pubs.usgs.gov/publication/70012203

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/inchi/InChI%3D1S/C3H9PS/c1-4

https://webbook.nist.gov/cgi/inchi/InChI%3D1S/C7H16S/c1-4-8-6-5-7

Hydrogen sulfide (H2 S) is a colorless, flammable gas that has strong odor of rotten eggs. H2 S poisoning is a rarity, mainly ... encoded search term (Hydrogen Sulfide Toxicity) and Hydrogen Sulfide Toxicity What to Read Next on Medscape ... and sulfur springs also produces hydrogen sulfide. In nature, hydrogen sulfide can be found in caves, sulfur springs, ... Hydrogen Sulfide Toxicity. Updated: Feb 25, 2022 * Author: David Vearrier, MD, MPH; Chief Editor: Michael A Miller, MD more... ...

https://emedicine.medscape.com/article/815139-overview

Researchers recently developed sodium ion batteries using copper sulfide anode. This finding will contribute to advancing the ... Sodium ion batteries using copper sulfide developed. Date:. April 17, 2018. Source:. The Korea Advanced Institute of Science ... The material was found to be copper sulfide, preferably in nanoplates, which "prefers to make an alloy with sodium and is thus ... Results indicate that the sodium ion-insertion capacity of copper sulfide is as much as 1.5 times that of lithium ions for ...

https://www.sciencedaily.com/releases/2018/04/180417115734.htm

... : CO2 Safe and Sour. Joint Industry Project. Contact us:. ... Joint industry project to investigate the integrity of carbon dioxide pipelines subjected to hydrogen sulfide from the carbon ... Joint Industry Project by DNV will take a look at how increasing acceptable levels of H2S will affect the risk for Sulphide ...

https://www.dnv.com/article/hydrogen-sulfide-challenges-in-carbon-dioxide-pipelines-co2-safe-and-sour-219712

Then we will be ready to learn about some reactions that involve alcohols, ethers, epoxides, thiols, and sulfides as both ... Then we will be ready to learn about some reactions that involve alcohols, ethers, epoxides, thiols, and sulfides as both ...

https://www.khanacademy.org/science/organic-chemistry/alcohols-ethers-epoxides-sulfides/synthesis-alcohols-tutorial

... - Jun 18, 2013 - Celanese ... Fortron® FX4382T1 polyphenylene sulfide (PPS) from Ticona is ideally suited for use in food processing equipment and conveyor ... FX4382T1 polyphenylene sulfide (PPS) complies with U.S. Food and Drug Administration (FDA) and European Union (EU) food-contact ...

https://news.thomasnet.com/fullstory/polyphenylene-sulfide-facilitates-food-handling-applications-20009841

Air Monitoring for Hydrogen Sulfide. While there are no regulatory exposure limits outside of the workplace for hydrogen ... 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 ... The odor threshold range for hydrogen sulfide is 0.0005 to 0.3 ppm (0.5 to 300 ppb). ...

https://scdhec.gov/environment/environmental-sites-projects-permits-interest/new-indy-odor-investigation/air-monitoring-hydrogen-sulfide

... Food and Nutrition Applications. To help the agricultural industry flourish in its efforts to maintain ... Dimethyl Sulfide is also used as a flavor and fragrance intermediate, which enriches the aroma and flavor of certain consumer ... Dimethyl Sulfide. Fungicide; Sulfidation agent for hydrocracking catalyst & prevention of coke formation and reducing CO in ... Dimethyl Sulfide (DMS) is a presulfiding agent for steam cracking, the process that turns hydrocarbons into ethylene and ...

https://www.cpchem.com/what-we-do/solutions/specialty-chemicals/products/dimethyl-sulfide

... sulphide can be precipitated by hydrogen sulphide from bismuth solutions , Buy chemicals and reagents online from Sigma Aldrich ... Bismuth(III) sulphide can be precipitated by hydrogen sulphide from bismuth solutions. 1 ...

https://www.sigmaaldrich.com/RU/en/product/aldrich/333190

... The most common use of zinc sulfide is as a pigment in paints, plastics and rubber. It can ... What is zinc sulfide?. Zinc sulfide is an inorganic compound with the chemical formula ZnS, which is a white or slightly yellow ... Our company provides graphene zinc sulphide, if you need to buy graphene and zinc sulphide, please feel free to contact us. ... Sulfide Powder *Oxide Powder *Carbide powder *Nitride Powder *Silicide Powder *Hydride Powder *Telluride Powder *Selenide ...

https://www.mis-asia.com/Answers/Global-zinc-sulphide-market-trend-2023-2030-What-is-Zinc-Sulphide-Used-for-by-Newsmis-asia.html

Sulfide La3S4 bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term contracts & ... About Lanthanum(II,III) Sulfide. American Elements manufactures Lanthanum(II,III) Sulfide in both research and bulk quantities ... Related Applications, Forms & Industries for Lanthanum(II,III) Sulfide. Chemical Manufacturing. Rare Earths. Research & ... Lanthanum(II,III) Sulfide Properties (Theoretical). Compound Formula. La3S4. ...

https://www.americanelements.com/lanthanum-ii-iii-sulfide-12031-30-0

... hydrogen sulfide (H,sub,2,/sub,S) is now recognized as a vital gaseous transmitter. The ubiquitous distributions of H,sub,2,/ ... Hydrogen Sulfide in Skin Diseases: A Novel Mediator and Therapeutic Target. Qing Xiao. ,1Lidan Xiong. ,2,3Jie Tang. ,2,3Li Li. ... D. Wu, W. Si, M. Wang, S. Lv, A. Ji, and Y. Li, "Hydrogen sulfide in cancer: friend or foe?" Nitric Oxide, vol. 50, pp. 38-45, ... As mentioned above, sulfide salts, including NaHS and Na2S, are the most common class of H2S donors applied in biological ...

https://www.hindawi.com/journals/omcl/2021/6652086/

Lead Sulfide Quantum Dots PbS bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. ... Lead Sulfide Quantum Dots Synonyms. PbS QDs, PbS core-type quantum dots, oleic acid coated, CANdot, Fluorescent lead sulfide ... About Lead Sulfide Quantum Dots. American Elements is a manufacturer and supplier specializing in producing Lead Sulfide (PbS) ... Customers For Lead Sulfide Quantum Dots Have Also Viewed. Lead Sulfide Hollow Nanospheres ...

https://www.americanelements.com/lead-sulfide-quantum-dots-1314-87-0

211, available from Nextteq, provides an accurate and quick method for detecting sulfide ion levels in solution. The direct... ... The Gastec Sulfide Ion in Solution Detector Tube No. ... The sulfide ion tube requires no color comparison chart or ... The Gastec Sulfide Ion in Solution Detector Tube No. 211, available from Nextteq, provides an accurate and quick method for ... detecting sulfide ion levels in solution. The direct-reading tubes produce a quantitative color-stain that quickly pinpoints ...

https://www.watertechonline.com/home/article/14172234/sulfide-ion-detection-nextteq-llc

Oxygen (O2), sulphide (HS-), and carbon dioxide (CO2) are taken up from the surrounding water through the animals plume and ... Oxygen and carbon dioxide are available from the surrounding water, and sulphide is taken up from the sediment through the ... Oxygen (O2), sulphide (HS-), and carbon dioxide (CO2) are taken up from the surrounding water through the animals plume and ... Oxygen and carbon dioxide are available from the surrounding water, and sulphide is taken up from the sediment through the ...

https://www.grida.no/resources/6621

ALD of sulfide materials typically uses metalorganic precursors and hydrogen sulfide (H2S). As in oxide ALD, the precursor ... ALD of sulfide materials typically uses metalorganic precursors and hydrogen sulfide (H2S). As in oxide ALD, the precursor ... Atomic Layer Deposition of Gallium Sulfide Films Using Hexakis(dimethylamido)digallium and Hydrogen Sulfide journal, December ... interest in sulfide materials. Recent progress in ALD of sulfides has expanded the diversity of accessible materials as well as ...

https://www.osti.gov/pages/biblio/1168427-atomic-layer-deposition-metal-sulfide-materials

Surprisingly late-season conditions on the Sulphide Glacier route resulted in a turnaround. ... Basic Glacier Climb - Mount Shuksan/Sulphide Glacier. Surprisingly late-season conditions on the Sulphide Glacier route ... The Sulphide Glacier is largely bare ice now, which has pushed the route far to climbers left. This led us to the base of a ...

https://www.mountaineers.org/activities/trip-reports/basic-glacier-climb-mount-shuksan-sulphide-glacier-10

Zinc Sulfide Market Report 2018 - press releases: read press releases from this company at the press portal openPR.com! Submit ... Zinc Sulfide Market Report 2018: Segmentation by Product (Purity≥99.99%, Purit … Global Zinc Sulfide market research report ... Press Releases from Zinc Sulfide Market Report 2018 (1 total). Press Releases as widget for your website ...

https://www.openpr.com/news/archive/194416/Zinc-Sulfide-Market-Report-2018.html

Various α,β-unsaturated phosphine sulfides were prepared in goods yields from the parent α,β-unsaturated phosphine oxides with ...

https://www.organic-chemistry.org/synthesis/P2S/index.shtm

The hydrogen sulfide combines with the iron of the yolk to form ferrous sulfide which produces the green color. The amount of ... Effect of rapid cooling upon formation of ferrous sulfide in cooked eggs. Hydrogen sulfide is a gas. When the egg is placed in ... The Formation Of Ferrous Sulfide In Cooked Eggs. When an egg has been cooked in hot water for 15 minutes or longer a dark ... Tinkler and Soar have shown that the green color is due to the formation of ferrous sulfide at the surface of the yolk. The ...

https://chestofbooks.com/food/science/Experimental-Cookery/The-Formation-Of-Ferrous-Sulfide-In-Cooked-Eggs.html

Sulfide also refers to chemical compounds large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl sulfide. (wikipedia.org)
A wet compound course is accounted for integrating natural particle settled lead sulfide nanoparticles. (alliedacademies.org)
The underlying examination affirmed the development of the monoclinic period of lead sulfide inside the natural organization. (alliedacademies.org)
The band construction of lead sulfide was gotten by thickness utilitarian hypothesis estimation that upheld the semiconductor idea of the material with an immediate band hole of 2.27 eV. (alliedacademies.org)
The dielectric execution of the lead sulfide began because of the dipolar and the space charge polarization. (alliedacademies.org)
The review uncovered that the lead sulfide-based framework has potential in energy capacity applications [ 1 ]. (alliedacademies.org)
In this specific circumstance, lead sulfide, a parallel (IV-VI) semiconductor material, with modestly little bandgap and huge exciton Bohr span (18 nm), stand apart as promising material that has been effectively utilized for various applications, for example, infrared sensors, sun based cells, light-radiating diodes, lasers and natural imaging because of its controllable size with assortment of morphologies. (alliedacademies.org)
Nanocrystalline lead sulfide additionally displayed the synergist execution for the amalgamation of amidoalkyl-naphthols under dissolvable free circumstances and for the synthetic decrease of p-nitroaniline. (alliedacademies.org)
The restricted bandgap, high electron portability and phenomenal compound security empower the lead sulfide as a promising photocatalytic material. (alliedacademies.org)
The lead sulfide nanoparticle started photocatalytic corruption of bromothymol blue has been accounted for because of electron-opening pair age instrument [ 3 ]. (alliedacademies.org)
Utilizing the band hole designing, utilizing various ligands, the electrical property of lead sulfide based field-impact semiconductor showed the change from ambipolar to solid n-type conduct. (alliedacademies.org)
The colloidal lead sulfide quantum spots likewise add to the improvement of sun powered cell efficiencies through better transporter extractionThe dopped lead sulfide nanocrystal encountered an improvement of optical properties because of charge infusion. (alliedacademies.org)
Optical properties of lead sulfide, in view of hypothetical computation, displayed great reflection and retention for bright electromagnetic waves, recommended an expected possibility for photoconductive gadgets in bright reach. (alliedacademies.org)

In 2019, 761 single exposures to hydrogen sulfide exposure were reported to Poison Control Centers in the United States. (medscape.com)
Low-level exposures to hydrogen sulfide usually produce local eye and mucous membrane irritation, while high-level exposures rapidly produce fatal systemic toxicity. (medscape.com)
For a copy of A Comprehensive Proposal to Protect the Public From Dangerous Exposures to Hydrogen Sulfide (H2S), contact the Institute at 616-882-4723. (mlui.org)

The sulfur absorption blocks the peripheral site and prevents further coking by creating an iron sulfide layer at the reaction site. (cpchem.com)
After the initial passivation step is complete, the DMS injection rate is reduced but continued to maintain a partial presence of H2S in the furnace, maintaining the iron sulfide layer. (cpchem.com)
The bulk of this specimen is made up of several crystals of Pyrrhotite, the iron sulfide known for its slight magnetism. (galleries.com)

What is Zinc Sulphide Used for? (mis-asia.com)
The volatile international political situations will continue to affect the markets and prices of many commodities like the zinc sulphide. (mis-asia.com)
Our company provides graphene zinc sulphide, if you need to buy graphene and zinc sulphide, please feel free to contact us. (mis-asia.com)

Bismuth(III) sulphide can be precipitated by hydrogen sulphide from bismuth solutions. (sigmaaldrich.com)
Wu CHK (2013) The role of hydrogen sulphide in lung diseases. (springer.com)
Li L, Hsu A, Moore PK (2009) Actions and interactions of nitric oxide, carbon monoxide and hydrogen sulphide in the cardiovascular system and in inflammation-a tale of three gases! (springer.com)

For example, methyl sulfide can mean CH3-SH. (wikipedia.org)

Compounds of sulfur with nonmetals , including hydrogen sulfide, carbon dusulfide, and several sulfides of nitrogen and phosphorus are covalent compounds formed by direct synthesis. (daviddarling.info)
Sulfur vacancies are introduced in the synthesis of zinc sulfide. (actionext.com)
Synthesis of Deliquescent Lithium Sulfide in Air. (bvsalud.org)

Transfer of Sulfur from Arsenic and Antimony Sulfides to Phosphorus Sulfides. (wikipedia.org)

Sulfide compounds can be prepared in several different ways: Direct combination of elements: Example: Fe(s) + S(s) → FeS(s) Reduction of a sulfate: Example: MgSO4(s) + 4C(s) → MgS(s) + 4CO(g) Precipitation of an insoluble sulfide: Example: M2+ + H2S(g) → MS(s) + 2H+(aq) Many metal sulfides are so insoluble in water that they are probably not very toxic. (wikipedia.org)
Metal sulfides are mostly insoluble (except those of the alkali metals and alkaline earth metals ), and are prepared by precipitation with hydrogen sulfide. (daviddarling.info)

Together with nitric oxide (NO) and carbon monoxide (CO), hydrogen sulfide (H 2 S) is now recognized as a vital gaseous transmitter. (hindawi.com)
The gasotransmitter hydrogen sulfide (H 2 S), recognized as the third gaseous signalling molecule along with nitric oxide (NO) and carbon monoxide (CO), is produced enzymatically in mammals under physiological conditions [ 1 ]. (hindawi.com)
Hydrogen sulfide (H 2 S) has been regarded as the third gaseous transmitter alongside nitric oxide (NO) and carbon monoxide (CO). In mammalian brain, H 2 S is produced redundantly by four enzymatic pathways, implying its abundance in the organ. (springer.com)

Instead sulfide converts to hydrosulfide: S2− + H2O → SH− + OH− Upon treatment with an acid, sulfide salts convert to hydrogen sulfide: S2− + H+ → SH− SH− + H+ → H2S Oxidation of sulfide is a complicated process. (wikipedia.org)
Oxidation of sulfide can also form thiosulfate (S 2O2− 3) an intermediate species responsible for severe problems of pitting corrosion of steel and stainless steel while the medium is also acidified by the production of sulfuric acid when oxidation is more advanced. (wikipedia.org)
There are a number of operating parameters controlling bioleaching processes, which are required to be maintained within a certain range in the leaching environment whereby the activity of bacteria with the resultant oxidation of sulfide minerals can be optimized. (researchgate.net)
resultant oxidation of sulfide minerals can be optimi zed. (researchgate.net)
S) was constructed at the Diavik Diamond Mine, in the Northwest Territories, Canada to evaluate the generation of acid-rock drainage and the seasonal and annual release of sulfide oxidation products into solution. (confex.com)

For example, the thioether dimethyl sulfide is CH3-S-CH3. (wikipedia.org)
To help the agricultural industry flourish in its efforts to maintain fertile land, grow crops and raise healthy livestock, Chevron Phillips Chemical produces agrochemical intermediates such as Dimethyl Sulfide. (cpchem.com)
Dimethyl Sulfide is also used as a flavor and fragrance intermediate, which enriches the aroma and flavor of certain consumer products. (cpchem.com)
Dimethyl Sulfide (DMS) is a presulfiding agent for steam cracking, the process that turns hydrocarbons into ethylene and propylene, which is used for olefin-based products. (cpchem.com)
Air-sea exchange is thought to be one of the major routes by which halocarbons and dimethyl sulphide reach the troposphere and stratosphere. (soton.ac.uk)
Smythe-Wright, D. , Boswell, S.M. , Lucas, C.H. , New, A.L. and Varney, M.S. (2005) Halocarbon and dimethyl sulphide production around the Mascarene Plateau. (soton.ac.uk)
Background: The two dialkylthiocarbamyl benzothiazole sulphides, dimethyl-thiocarbamylbenzothiazole sulphide (DMTBS) and diethylthio-carbamylbenzothiazole sulphide (DETBS) were shown to be good markers of both thiuram and mercaptobenzothiazole sensitivity. (lu.se)

Polyphenylene sulfide (see below) has the empirical formula C6H4S. (wikipedia.org)
Polyphenylene Sulfide facilitates food handling applications. (thomasnet.com)
Sulzbach, Germany, Shanghai, PR China - Ticona, the engineering polymers business of Celanese Corporation, today announced that Fortron® FX4382T1 polyphenylene sulfide (PPS) complies with U.S. Food and Drug Administration (FDA) and European Union (EU) food-contact regulations. (thomasnet.com)
Fortron® FX4382T1 polyphenylene sulfide (PPS) from Ticona is ideally suited for use in food processing equipment and conveyor system applications such as high-precision chain links. (thomasnet.com)

Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions. (wikipedia.org)
Zinc sulfide is an inorganic compound with the chemical formula ZnS, which is a white or slightly yellow powder, which becomes darker when exposed to light. (mis-asia.com)
Zinc sulfide is an inorganic compound with the chemical formula ZnS. (actionext.com)
Copper sulfide has the chemical formula CuS. (iberocruceros.com)

In organic chemistry, "sulfide" usually refers to the linkage C-S-C, although the term thioether is less ambiguous. (wikipedia.org)
Organic sulfides, called thioethers , contain the -S- group linked to two hydrocarbon groups. (daviddarling.info)
Organic decomposition of sulfur compounds in sewers, barns, liquid manure pits, ships' holds, and sulfur springs also produces hydrogen sulfide. (medscape.com)

This study investigates the delivery of 20, 45, and 100nm diameter poly(ethylene glycol)-stabilized poly(propylene sulfide) (PPS) nanoparticles to DCs in the lymph nodes. (nih.gov)

Selenium sulfide, an anti-infective agent, relieves itching and flaking of the scalp and removes the dry, scaly particles that are commonly referred to as dandruff or seborrhea. (medlineplus.gov)
Selenium sulfide comes in a lotion and is usually applied as a shampoo. (medlineplus.gov)
As a shampoo, selenium sulfide usually is used twice a week for the first 2 weeks and then once a week for 2, 3, or 4 weeks, depending on your response. (medlineplus.gov)
For skin infections, selenium sulfide usually is applied once a day for 7 days. (medlineplus.gov)
Use selenium sulfide exactly as directed. (medlineplus.gov)
Avoid getting selenium sulfide in your eyes. (medlineplus.gov)
Do not leave selenium sulfide on your hair, scalp, or skin for long periods (e.g., overnight) because it is irritating. (medlineplus.gov)
selenium sulfide may damage it. (medlineplus.gov)
If you are using selenium sulfide before or after bleaching, tinting, or permanent waving your hair, rinse your hair with cool water for at least 5 minutes after applying selenium sulfide to prevent discolored hair. (medlineplus.gov)
tell your doctor and pharmacist if you are allergic to selenium sulfide or any other drugs. (medlineplus.gov)
If you become pregnant while using selenium sulfide, call your doctor. (medlineplus.gov)
Selenium sulfide may cause side effects. (medlineplus.gov)

Exposure to carbonyl sulfide occurs mainly by breathing low levels of this chemical in the air. (cdc.gov)
Exposure can also occur if you consume products such as wheat, oats, barley, and canola shortly after they have been fumigated with carbonyl sulfide to increase insect resistance. (cdc.gov)
The health effects of carbonyl sulfide appear to depend on how much you are exposed to and the length of that exposure. (cdc.gov)
Exposure to carbonyl sulfide can damage areas of the brain that control movement and process sound information. (cdc.gov)
No human or animal studies have examined whether exposure to carbonyl sulfide can cause cancer. (cdc.gov)
Whether children are more sensitive to carbonyl sulfide exposure than adults is not known. (cdc.gov)
It is not known if exposure to carbonyl sulfide will cause birth defects in humans. (cdc.gov)
How can families reduce the risk of exposure to carbonyl sulfide? (cdc.gov)
the general population will have some exposure to carbonyl sulfide. (cdc.gov)
The health effects of carbonyl sulfide appear to · It is also released during chemical processing, natural gas depend on how much you are exposed to and the and oil recovery, combustion of coal, biomass, burning, and length of that exposure. (cdc.gov)
Families can reduce their exposure to carbonyl sulfide by avoiding areas that are sources of No human or animal studies have examined whether carbonyl sulfide. (cdc.gov)
exposure to carbonyl sulfide can cause cancer. (cdc.gov)
How can carbonyl sulfide affect determine carbonyl sulfide exposure. (cdc.gov)
In the United States from 1999 to 2007, 45 deaths from hydrogen sulfide exposure occurred, all of them unintentional. (medscape.com)
While there are no regulatory exposure limits outside of the workplace for hydrogen sulfide (H 2 S), there are exposure guidelines to which any monitoring data will be compared. (scdhec.gov)
The small crystallite size phases (∼20 nm) and high micro-strain of the nickel sulfide nanophases favor this process, suggesting that sulfate nucleation occurs at disordered regions, also called the interfacial component, and that the growth rates are determined by the exposure time of the sample to the ambient atmosphere. (rsc.org)

In this work, hydrated nickel sulfates (NSHs) were spontaneously obtained by storing nanocrystalline nickel sulfide composites (NiS 2 -NiS) under ambient conditions over several months. (rsc.org)

Such inorganic sulfides typically have very low solubility in water, and many are related to minerals with the same composition (see below). (wikipedia.org)
This sulfide minerals recorded information (like isotopes) of their surrounding environment during their formation. (wikipedia.org)
The changes are part of proposed new permanent rules for nonferrous metallic mines that extract sulfide minerals like gold, zinc and copper. (wpr.org)
Associated Minerals pentlandite , quartz , ankerite , pyrite and other sulfides. (galleries.com)
Bioleaching/biooxidation is essentially a dissolution process with the involvement of acidophilic bacteria acting as the 'catalyst' to accelerate the dissolution of metals from sulfide minerals. (researchgate.net)
bacteria acting as the "catalyst" to accelerate the dissolution of metals from sulfide minerals. (researchgate.net)

Many important metal ores are sulfides. (wikipedia.org)
In this regard temperature, acidity, oxidizing conditions, availability of nutrients, oxygen and carbon dioxide, surface area and presence of toxic ions are of prime importance for control and optimization of bioleaching of sulfide ores/concentrates. (researchgate.net)

Significant hydrogen sulfide poisoning usually occurs by inhalation. (medscape.com)
Hydrogen sulfide occurs naturally in crude petroleum, natural gas, volcanic gases, and hot springs. (engineeringtoolbox.com)

Phosphorus sulfides comprise a family of inorganic compounds containing only phosphorus and sulfur. (wikipedia.org)

Hydrogen sulfide (H 2 S) is a colorless, flammable gas that has strong odor of rotten eggs. (medscape.com)
The odor threshold range for hydrogen sulfide is 0.0005 to 0.3 ppm (0.5 to 300 ppb). (scdhec.gov)
Hydrogen sulfide, H 2 S, is a highly toxic and flammable, colorless gas with a characteristic odor of rotten eggs. (engineeringtoolbox.com)

Dissolved free sulfides (H2S, HS− and S2−) are very aggressive species for the corrosion of many metals such as steel, stainless steel, and copper. (wikipedia.org)
Platinum-group elements (PGE) are mined predominantly from deposits that have formed by the segregation of molten iron-nickel-copper sulfides from silicate magmas. (usgs.gov)
Compared to the existing anode materials, the copper sulfide anode was measured to exhibit 1.5 times better cyclability with projected 40% reduction in cost. (sciencedaily.com)
The material was found to be copper sulfide, preferably in nanoplates, which "prefers to make an alloy with sodium and is thus promising for high capacity and long-term cyclability. (sciencedaily.com)
sis presented in the study reveals that copper sulfide undergoes crystallographic tuning to make a room for sodium insertion. (sciencedaily.com)
Results indicate that the sodium ion-insertion capacity of copper sulfide is as much as 1.5 times that of lithium ions for graphite. (sciencedaily.com)
Copper-doped zinc sulfide (" ZnS plus Cu ") is also used in electroluminescent panels. (actionext.com)
ST. PAUL, Minn.―Conservation groups sued the U.S. Army Corps of Engineers today to challenge a key water permit authorizing the PolyMet open-pit copper-sulfide mine to move forward. (biologicaldiversity.org)
PolyMet's proposed copper-sulfide mine would be located at the headwaters of Lake Superior, upstream from the St. Louis River, the largest U.S. tributary to Lake Superior, as well as the Fond du Lac Reservation and the city of Duluth. (biologicaldiversity.org)

The chemical reactions involved in the milling and aging, as well as a tentative model to explain this spontaneous composition transition from nickel sulfides to nickel sulfate hydrates, are presented. (rsc.org)

Massive pyrrhotite is common and magnetism is sometimes the only way to distinguish it from other brassy colored sulfides such as chalcopyrite , pyrite, pentlandite or marcasite Good crystals are rare and should rightly be treasured as comming from a very unusual mineral. (galleries.com)

Corrosion is a major concern in many industrial installations processing sulfides: sulfide ore mills, deep oil wells, pipelines transporting soured oil and Kraft paper factories. (wikipedia.org)
Joint industry project to investigate the integrity of carbon dioxide pipelines subjected to hydrogen sulfide from the carbon dioxide stream for carbon capture and storage applications. (dnv.com)
This Joint Industry Project by DNV will take a look at how increasing acceptable levels of H 2 S will affect the risk for Sulphide Stress Cracking (SSC) and corrosion damages in carbon steel pipelines used for CCS. (dnv.com)
Set new safety standards for building and operating pipelines that transport gas with hydrogen sulfide. (mlui.org)

Metal sulfides react with halogens, forming sulfur and metal salts. (wikipedia.org)
In fact, the bonding in transition metal sulfides is highly covalent, which gives rise to their semiconductor properties, which in turn is related to the deep colors. (wikipedia.org)
The fungus Aspergillus niger plays a role in the solubilization of heavy metal sulfides. (wikipedia.org)
This Account highlights the attributes of ALD chemistry that are unique to metal sulfides and surveys recent applications of these materials in photovoltaics, energy storage, and photonics. (osti.gov)
As a result, we consider challenges that must be addressed prior to implementing ALD metal sulfides into future device architectures. (osti.gov)
Among the different semiconductor nanomaterials, metal sulfides stand out because of their fitting electronic band hole and bandposition. (alliedacademies.org)
Such a long ways as application perspective, metal sulfides based gadgets showed productive exhibitions in a few regions including energy component, sun powered cell, light-discharging diode, gas sensor, battery, supercapacitor, thermoelectric, dielectric and memory applications. (alliedacademies.org)
The presentation of the gadgets transcendently relies upon the nano engineering of the metal sulfides [ 2 ]. (alliedacademies.org)

8 MgS + 8 I2 → S8 + 8 MgI2 Aqueous solutions of transition metals cations react with sulfide sources (H2S, NaHS, Na2S) to precipitate solid sulfides. (wikipedia.org)
The science is clear: sulfide mines like Twin Metals and PolyMet would be disastrous for Minnesota and the planet. (mepartnership.org)
The watershed of the Rainy River and the Boundary Waters around it would be impacted by Twin Metals, the other well-known sulfide mine project in Minnesota. (mepartnership.org)

The hydrogen sulfide combines with the iron of the yolk to form ferrous sulfide which produces the green color. (chestofbooks.com)

Hydrogen sulfide most often is encountered as a byproduct of the petroleum, viscose rayon, rubber, and mining industries. (medscape.com)
Hydrogen sulfide, a common byproduct of energy development, is an explosive gas, similar in toxicity to cyanide, that attacks the nervous system. (mlui.org)

They found the sulfur compounds in the yolk were more stable and less easily broken down to form hydrogen sulfide. (chestofbooks.com)
He and coworkers established that oral malodor (bad breath) is associated with the presence of volatile sulfur compounds, primarily hydrogen sulfide and methylmercaptan. (medscape.com)

Sulphide dust explosions in underground mines have caused fatalities, serious injuries, and significant damage to equipment. (cdc.gov)
No secondary dust ignitions have occurred when using these low-incendive products in sulphide ore mines. (cdc.gov)

Carbonyl sulfide reacts with water to form carbon dioxide and hydrogen sulfide. (cdc.gov)
A sulfide is a compound formed when sulfur reacts directly with another, more electropositive element. (daviddarling.info)

Solutions of sulfide salts are corrosive. (wikipedia.org)
these are salts of hydrogen sulfide . (daviddarling.info)
In these cases, hydrogen sulfide is created by mixing household chemicals (eg, an acidic detergent such as a toilet bowl cleaner, which acts as a proton donor, and a sulfur source such as a pesticide or bath salts), leading to the terms detergent suicide and chemical suicide. (medscape.com)

Likewise at a lower temperature a smaller amount of hydrogen sulfide is formed. (chestofbooks.com)

The most common use of zinc sulfide is as a pigment in paints, plastics and rubber. (mis-asia.com)
Zinc sulfide is now the second most important pigment in the United States after titanium dioxide but continues to play an important role in European industry. (actionext.com)
Because of its high refractive coefficient and wear resistance, zinc sulfide pigment in equipment, wax paper, and metal plate coated with a very thin layer has relatively high hiding power. (actionext.com)
Zinc sulfide is a common pigment sometimes called Sachtolith. (actionext.com)

The amount of hydrogen sulfide evolved depends on (1) the time of heating, (2) the temperature reached, and (3) the reaction of the egg. (chestofbooks.com)
Since the white near the shell reaches a certain temperature more rapidly than the white near the yolk, more hydrogen sulfide is split off near the shell. (chestofbooks.com)
But, since the temperature near the yolk is lower, hence has less pressure than near the shell, the hydrogen sulfide diffuses through the white towards the yolk. (chestofbooks.com)
The hydrogen sulfide phase diagram shows the phase behavior with changes in temperature and pressure. (engineeringtoolbox.com)
We visited the facility in April 2013 and measured hydrogen sulfide , carbon dioxide, temperature, and humidity levels throughout the building. (cdc.gov)

Last week, the U.S. Army Corps of Engineers suspended a key permit for the PolyMet sulfide ore mining project, tapping the brakes on the project due to the need for more review. (mepartnership.org)
While the review process is complex, and other legal challenges are moving simultaneously against PolyMet, the Army Corps' permit suspension is good news for all those who are rightfully concerned about sulfide mining in Minnesota. (mepartnership.org)

At concentrations of 135 micrograms per cubic meter (µg/m 3 ) (0.055 ppm), people may be able to smell carbonyl sulfide in air. (cdc.gov)
The absolute concentrations of PGE in sulfides from different deposits vary over a range of five orders of magnitude, whereas those of other chalcophile elements vary by factors of only 2 to 100. (usgs.gov)
The absolute and relative concentrations of PGE in magmatic sulfides are explained in terms of the degree of partial melting of mantle peridotite required to produce the parent magma and the processes of batch equilibration and fractional segregation of sulfides. (usgs.gov)

Lead- (Pb-) induced hypertension has been shown in humans and experimental animals and cardiovascular effects of hydrogen sulfide (H 2 S) have been reported previously. (hindawi.com)

As a cellular poison, hydrogen sulfide affects all organs, particularly the CNS and pulmonary system. (medscape.com)
Therefore, the extent of deterioration of the egg also affects the amount of hydrogen sulfide formed. (chestofbooks.com)
Under the changes, the state must also notify tribes of any proposed sulfide mine that's near their reservations or affects land where they have federal treaty rights. (wpr.org)

There are several other phosphorus sulfides in addition to P4S3 and P4S10. (wikipedia.org)
All known molecular phosphorus sulfides contain a tetrahedral array of four phosphorus atoms. (wikipedia.org)
P4S7 is most conveniently made by direct union of the corresponding elements, and is one of the most easily purified binary phosphorus sulfides. (wikipedia.org)
Another method involves the heating of P4S7 and P4S10 in 1:2 mole ratio, where P4S9 is reversibly formed: P4S7 + 2 P4S10 ⇌ 3 P4S9 P4S10 is one of the most stable phosphorus sulfides. (wikipedia.org)

Recent progress in ALD of sulfides has expanded the diversity of accessible materials as well as a more complete understanding of the unique chalcogenide surface chemistry. (osti.gov)
ALD of sulfide materials typically uses metalorganic precursors and hydrogen sulfide (H 2 S). As in oxide ALD, the precursor chemistry is critical to controlling both the film growth and properties including roughness, crystallinity, and impurity levels. (osti.gov)

Microbially-induced corrosion (MIC) or biogenic sulfide corrosion are also caused by sulfate reducing bacteria producing sulfide that is emitted in the air and oxidized in sulfuric acid by sulfur oxidizing bacteria. (wikipedia.org)
Zinc sulfide forms lithopone when combined with barium sulfate. (actionext.com)

Experimental and computational studies confirm that this interfacial resistance results from lithium depletion in sulfide solid electrolytes. (rsc.org)
In the field of lithium - sulfur batteries (LSBs) and all-solid- state batteries , lithium sulfide (Li2S) is a critical raw material. (bvsalud.org)

Sulfides present in aqueous solution are responsible for stress corrosion cracking (SCC) of steel, and is also known as sulfide stress cracking. (wikipedia.org)

Carbonyl sulfide does not have many commercial uses, as it is primarily used in small-scale chemical syntheses. (cdc.gov)
Zinc sulfide is mainly used in paint and plastics in chemical production. (actionext.com)

More than a year after 11 people were injured by poisonous hydrogen sulfide (H2S) released from a natural gas well in Manistee Township, the Michigan Department of Environmental Quality has alerted the Legislature that it is taking steps to establish a number of significant policy reforms. (mlui.org)

This explains why some eggs have more ferrous sulfide formed than other eggs when cooked at the same time and cooled in the same manner. (chestofbooks.com)
Effect of rapid cooling upon formation of ferrous sulfide in cooked eggs. (chestofbooks.com)
Hydrogen sulfide (H 2 S) was formerly known as a pollutant gas with characteristic smell of rotten eggs. (hindawi.com)

Organisms2

Chemicals and Drugs15

Phenomena and Processes7

Technology, Industry, Agriculture1

Health Care1

Allyl-containing sulfides in garlic increase uncoupling protein content in brown adipose tissue, and noradrenaline and adrenaline secretion in rats. (1/1610)

Nitrate removal in closed-system aquaculture by columnar denitrification. (2/1610)

Dense populations of a giant sulfur bacterium in Namibian shelf sediments. (3/1610)

Tetradecylthioacetic acid (a 3-thia fatty acid) impairs secretion of oleic acid-induced triacylglycerol-rich lipoproteins in CaCo-2 cells. (4/1610)

Thiolated recombinant human tumor necrosis factor-alpha protects against Plasmodium berghei K173-induced experimental cerebral malaria in mice. (5/1610)

A fission yeast gene for mitochondrial sulfide oxidation. (6/1610)

Health aspects of the curing of synthetic rubbers. (7/1610)

Novel derivatives of phenethyl-5-bromopyridylthiourea and dihydroalkoxybenzyloxopyrimidine are dual-function spermicides with potent anti-human immunodeficiency virus activity. (8/1610)

Sulfides

Allyl Compounds

Transition Elements

Sulfur Compounds

Garlic

Hydrothermal Vents

Sulfoxides

Iron Compounds

Meteoroids

Sulfinic Acids

Geologic Sediments

Oxidation-Reduction

Sulfur

Sulfates

Iron

Stereoisomerism

Seawater

Bacteria

Allyl-containing sulfides in garlic increase uncoupling protein content in brown adipose tissue, and noradrenaline and adrenaline secretion in rats. (1/1610)

Nitrate removal in closed-system aquaculture by columnar denitrification. (2/1610)

Dense populations of a giant sulfur bacterium in Namibian shelf sediments. (3/1610)

Tetradecylthioacetic acid (a 3-thia fatty acid) impairs secretion of oleic acid-induced triacylglycerol-rich lipoproteins in CaCo-2 cells. (4/1610)

Thiolated recombinant human tumor necrosis factor-alpha protects against Plasmodium berghei K173-induced experimental cerebral malaria in mice. (5/1610)

A fission yeast gene for mitochondrial sulfide oxidation. (6/1610)

Health aspects of the curing of synthetic rubbers. (7/1610)

Novel derivatives of phenethyl-5-bromopyridylthiourea and dihydroalkoxybenzyloxopyrimidine are dual-function spermicides with potent anti-human immunodeficiency virus activity. (8/1610)

Phosphorus sulfides

Sulfide

Sulphide Glacier

Diethyl sulfide

Arsenic sulfide

Strontium sulfide

Selenium sulfide

Mercury sulfide

Sodium sulfide

Dimethyl sulfide

Tin sulfide

Ytterbium sulfide

Cobalt sulfide

Carbon sulfide

Diphenyl sulfide

Rubidium sulfide

Magnesium sulfide

Lithium sulfide

Antimony sulfide

Nickel sulfide

Dibromodiethyl sulfide

Copper sulfide

Sulphide Lake

Borate sulfide

Sulphide Creek

Polonium sulfide

Gold sulfide

Lead sulfide

Tetramethylthiuram sulfide

Phosphine sulfide

Phosphorus sulfides - Wikipedia

Sulfide - Wikipedia

Carbonyl Sulfide | ToxFAQs™ | ATSDR

Selenium Sulfide: MedlinePlus Drug Information

Category:Potassium sulfide - Wikimedia Commons

sulfide

Propyl sulfide

Platinum metals in magmatic sulfide ores

Trimethylphosphine sulfide

Ethyl isopentyl sulfide

Hydrogen Sulfide Toxicity: Practice Essentials, Pathophysiology, Etiology

Sodium ion batteries using copper sulfide developed | ScienceDaily

Hydrogen sulfide challenges in carbon dioxide pipelines

Alcohols, ethers, epoxides, sulfides | Organic chemistry | Khan Academy

Polyphenylene Sulfide facilitates food handling applications.

Air Monitoring for Hydrogen Sulfide | SCDHEC

Dimethyl Sulfide

Bismuth(III) sulfide 99 1345-07-9

What is Zinc Sulphide Used for?

Skip to Properties

Hydrogen Sulfide in Skin Diseases: A Novel Mediator and Therapeutic Target

Skip to Properties

Sulfide ion detection: Nextteq LLC | Water Technology

Morphology of a tube worm hosting sulphide-oxidizing symbionts | GRID-Arendal