Species toxic sulphate organic ferrous compounds. Medical search. Frequent questions

Ferrous sulfate and ferrous chloride are reducing agents, and exposure to light gives reduction of the ferric form. (europa.eu)
US4053305 discloses a leaching process for the recovery of copper and silver from a sulfide ore using a combination of ferrous chloride solution and pressurised oxygen. (allindianpatents.com)
Also called ferric chloride , these compounds are some of the most important and commonplace compounds of iron. (wikipedia.org)

Iron disulfide (pyrite, FeS2) on the other hand consists of S2− 2, or −S-S− dianion, in association with divalent iron in the formal +2 oxidation state (ferrous ion: Fe2+). (wikipedia.org)
The trivalent form, Cr(III), is the most stable oxidation state of chromium and compounds/complexes containing Cr(III) are common in natural systems ( Vaiopoulou & Gikas 2012 ). (iwaponline.com)
and removing the contaminant from the solution whilst regenerating the multi-valent species to its relatively high oxidation state. (allindianpatents.com)
In the +6 oxidation state, the most important species formed by chromium are the chromate, and dichromate, ions. (mathisfunforum.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)
Sulfide also refers to chemical compounds large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl sulfide. (wikipedia.org)
Inorganic and organic derivatives of boric acid either B(OH)3 or, preferably H3BO3. (lookformedical.com)
Inorganic or organic salts and esters of boric acid. (lookformedical.com)

Such species are sometimes referred to as salts. (wikipedia.org)
It also converts sulphites to sulphates, thiosulphates to sulphates, chlorides to chlorine, nitrites to nitrates, and sulphur to stannic salts. (turito.com)
It calculates the volume of sulphites, iodine, and ferrous salts. (turito.com)
The availability of this compound, which is naturally very low, is further reduced by solid phase (caliche) and sodium and calcium salts which are present in the soil solution, factors which are abundantly present in southwestern soils. (spring-lake.net)

When ferrous iron (Fe2+) is oxidized to ferric iron (Fe3+) at mine sites, Fe3+ spontaneously reacts with water and iron-sulfur compounds like pyrite to produce sulfate and hydrogen ions. (wikipedia.org)
However, in anaerobic conditions F. thermophilum reduces ferric iron and sulfate. (wikipedia.org)
Photoreduction of ferric (Fe3+) ions to ferrous (Fe2+) ions is evidenced in fresh and marine waters and is subject to a number of publications (Barbeau 2006, Emmenegger et al 2001, Hong & Kester 1986, Kopácek et al 2005, Rose & Waite 2003). (europa.eu)
Both ferrous and ferric ions released into (or generated in) water will rapidly precipitate as highly insoluble oxides and oxo-hydroxides. (europa.eu)
Any precipitate would in turn undergo further oxidation to form the highly insoluble ferric hydroxide (Fe(OH)3) as this species autocatylzes the oxidation of Fe(II). (europa.eu)
A relatively simple improvement to the removal of chromium could be made by switching the aluminium or ferric solution dosed at most treatment works for the removal of solids, organic load and phosphorus, to a ferrous salt. (iwaponline.com)

Response surface methodology (RSM) in combination with Box-Behnken design (BBD) was used to optimize the process parameters of CWPO process such as initial pH, catalyst dose, hydrogen peroxide dose, initial concentration of pyridine (Py) and quinolone (Qn) were chosen as the main variables, and total organic carbon (TOC) removal and total Fe leaching were selected as the investigated response. (eeer.org)
Facilities in each state that manufactured or processed hydrogen cyanide or cyanide compounds in 2002, the range of the maximum amounts stored on site, and the types of production or use activities (e.g. (cdc.gov)
In the biological communities surrounding hydrothermal vents and cold seeps , extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane , to energy. (alchetron.com)

Ferrous reduces hexavalent chromium to insoluble trivalent chromium, which can be readily settled out of waste streams as a particulate. (iwaponline.com)
There is proof that hexavalent chromium or chromium VI compounds cause lung cancer in both people and animals, which causes cancer. (turito.com)

Nitrogenous heterocyclic compounds (NHCs) releases into a water/wastewater stream due to its wide applicability in chemical industries such as coal tar, dye, fertilizer, insecticides, and pharmaceuticals [ 1 ]. (eeer.org)
In the present study, laboratory experiments using real wastewater and ferrous doses of 10 mg Fe L −1 achieve the chromium discharge consent of 8 μg L −1 from initial solution concentrations of up to 40 μg L −1 . (iwaponline.com)
Belonging to this group, carbamazepine is one of the most problematic compounds in wastewater treatment plants (WWTPs). (frontiersin.org)

Other parts of the ore are now insufficiently soluble, such as the compounds of aluminium and iron. (turito.com)
To prevent soluble arsenic compounds or toxic arsenic vapours being created in the process the concentrate is blended with a balancing solution slurry containing a predetermined concentration of copper, lead, zinc, or a mixture thereof in the form of sulfides of those metals. (allindianpatents.com)
There are several Zn compounds that are soluble enough to be used for fertigation. (wsu.edu)

In aerobic conditions with low concentrations of yeast extract F. thermophilum grows by oxidizing ferrous iron. (wikipedia.org)
Accordingly low concentrations of the ferrous kation apart from the top metre of water where light can penetrate and apart from the very deep anaerobic environments can be expected as shown by Hong & Kester (1982). (europa.eu)
However, reproducibility was problematic in postmenopausal urines where concentrations of these compounds are much lower. (lookformedical.com)

Because of nitrogen-atom included in the ring system, these compounds have high water solubility. (eeer.org)
Surfactants are known to modulate the solubility of hydrophobic compounds and improve their transport through bacterial membranes by reducing surface and interfacial tensions thus favoring the desulfurization rate. (researchgate.net)
This investigation has added considerably to our knowledge of the solubility of the phosphate, potassium, and calcium compounds in alkaline-calcareous their physiological availability, and some of the factors influencing this, and the comparative quantitative value of the Neubauer and carbonic acid methods for estimating this availability. (spring-lake.net)

It is used to make chrome alum, chrome yellow, and chrome red, additional chromium compounds. (turito.com)
Creating chromium compounds is its main use. (turito.com)
The name of the element chromium (from Greek chrōmos , "colour") connotes the pronounced and varied colorations of chromium compounds. (mathisfunforum.com)
One of the chief uses of chromium is in ferrous alloys, for which the pure metal is not required. (mathisfunforum.com)

The process of photoreduction may overcompensate the aerobic oxidation resulting in the presence of ferrous (Fe2+) ions during daylight and disappearing during the night (Kopácek et al 2005). (europa.eu)

A naturally occurring element, arsenic and its compounds are very poisonous. (dewdon.com)

Members of the genus Ferroplasma are chemomixotrophs that can oxidize ferrous iron to acquire energy, but despite evidence of carbon fixation, lab cultures often require an organic carbon source such as yeast extract for growth. (wikipedia.org)
The sodium dichromate compound, which contains seven oxygen atoms, is a powerful oxidising agent because it has plenty of oxygen to give to other species to oxidize them by reducing itself. (turito.com)

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)
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)
In organic chemistry, "sulfide" usually refers to the linkage C-S-C, although the term thioether is less ambiguous. (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)
For these reasons international trends are to move away from roasting of sulfide ores, Pressure oxidation of sulfidic materials is employed to avoid the problems of roasting, but requires high pressures (typically greater than 30 bar) and relatively high temperatures (greater than 200°Q. Pressure oxidation is also typically carried out in a sulfate based solution. (allindianpatents.com)

Most bacteria have not been characterised, and only about half of the bacterial phyla have species that can be grown in the laboratory. (alchetron.com)
However several species of bacteria are pathogenic and cause infectious diseases, including cholera , syphilis , anthrax , leprosy , and bubonic plague . (alchetron.com)
In nature, these bacteria live just below the surface of the mud in fresh and saltwater, where they happily feed on organic materials. (notonthebeeb.co.uk)
Azotobacter (and a few other species of bacteria such as Klebsiella pneumoniae ) are free-living in soil and water and do not form symbioses. (deskuenvis.nic.in)

In the dyeing of textiles with natural dyes, tannins are used as natural mordants which are high molecular weight compounds (between 500 to 3000) containing phenolic hydroxyl groups and they enable effective cross-links between proteins and other macromolecules. (textilevaluechain.in)
Total polyphenol content was higher in treated seeds, and salinity improved the amount of individual phenolic compounds. (cyberleninka.org)

The present study investigates the feasibility of nitrogenous heterocyclic compounds (NHCs) (Pyridine-Quinoline) degradation by catalytic wet peroxidation (CWPO) in the presence of nanoscale zerovalent iron supported on granular activated carbon (nFe 0 /GAC) using statistical optimization technique. (eeer.org)
Among various advanced oxidation process, catalytic wet peroxidation (CWPO) received rapid attention because it may non-selectively degrade the non-biodegradable compounds into harmless or simple compounds in the presence of oxidant using homogeneous/heterogeneous catalyst under atmospheric pressure and moderate temperature (below 80°C) [ 8 - 10 ]. (eeer.org)
Ferrous iron is also a powerful catalytic species, which causes the decomposition of organic matter in the presence of oxygen. (europa.eu)

These stable compounds are exactly the forms in which iron is found naturally in the earth's crust. (europa.eu)

The compounds that have dichromate as the anion also depict a vivid orange hue. (turito.com)
In the manufacturing of organic chemicals, sodium dichromate is used. (turito.com)

Genagen SC 35 is a basic surfactant ready-to-use blend of alkyl diglycol ether sulfate sodium salt and coconut fatty acid monoethanolamide. (clariant.com)

These compounds are toxic, potentially carcinogenic and mutagenic properties even at low concentration of NHCs in the aqueous stream [ 2 ]. (eeer.org)
According to Stareck38, the maximum concentration of sulphate that can be held in solutions can be reduced to as low as 0.2 g/l, if as much as 12 g/l of Sr2 + is present. (pickmeup.hr)

Due to the difference in chemical composition of the phosphate, and calcium compounds and minerals, as well as the fixation of these elements, their avail- ability is affected by a complex set of factors. (spring-lake.net)

During this reaction ferrous iron, which can be utilized by Ferroplasma, is also regenerated leading to a "propagation cycle" where pH is lowered. (wikipedia.org)
Which of the following compounds on reaction with methyl magnesium bromide will give tertiary alcohol. (tnboardsolutions.com)
Organic chemistry II Experiment 3: chromic acid oxidation reaction Introduction: Camphor is very compact and its molecular structure is symmetrical which gives it the property to change directly from a solid to vapour when heated. (pickmeup.hr)

Phragmites australis is one of the species with both, the highest potential of detoxification and phytoremediation. (frontiersin.org)

NHCs have been listed as hazardous and toxic chemical due to its adverse impact on the natural environment. (eeer.org)
Conventional processing methods of CFA are known to pose significant environmental challenges, including the leaching of hazardous materials, emission of toxic gases, and the high energy consumption needed to extract the value-added components. (researchgate.net)

The preferred descriptor for such SH-containing compounds is thiol or mercaptan, i.e. methanethiol, or methyl mercaptan. (wikipedia.org)
Methyl salicylate (oil of wintergreen or wintergreen oil) is an organic ester naturally produced by many species of plants, particularly wintergreens. (drugbank.com)

Then in 1931, Chandler, Hoagland, and Hibbard (University of California, Berkeley) reported that soil applications of ferrous sulfate from certain sources cured the symptoms. (wsu.edu)
The manure from animals provides a good source of organic matter for improving soil fertility and crop yields. (niir.org)

The involvement of free radicals (reactive oxygen and nitrogen species) in various hemostatic and pathological states and its consequence in disease development and progression is believed to be at the foundation of many illnesses [ 15 ]. (springeropen.com)

A detailed data profile and a legal file can be obtained from the International Register of Potentially Toxic Chemicals, Case postale 356, 1219 Ch telaine, Geneva, Switzerland (telephone no. + 41 22 - 9799111, fax no. + 41 22 - 7973460, E-mail [email protected]). (inchem.org)
No information is available in the TRI database for thiocyanate compounds in this profile because these compounds are not included under SARA, Title III and, therefore, are not among the chemicals that facilities are required to report (EPA 2004q). (cdc.gov)

3 Chemistry is comprised of various components, including, amongst others, organic chemistry, which studies the construction of molecules, biochemistry, dedicated to the molecules of life, and solid-state chemistry, more specifically concerned with the synthesis, structure and properties of solid materials. (openedition.org)
Tamilnadu State Board New Syllabus Samacheer Kalvi 12th Chemistry Guide Pdf Chapter 11 Hydroxy Compounds and Ethers Text Book Back Questions and Answers, Notes. (tnboardsolutions.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)

According to Fig. 1-a, Fe, Al, Ca, and Ti containing compounds constituted the major phases of the sample. (researchgate.net)

Roasting sulfidic ores presents significant problems due to emissions of environmentally toxic sulfur based gases (so-called SOx gases). (allindianpatents.com)

Typically, we refer to the compounds containing this anion as a single group using this term. (turito.com)
fa the POx and Biox processes a sulfate medium is typically employed. (allindianpatents.com)

15Fe^2+ + 2SO4^2- + 16H+}}} Ferroplasma species are often present at AMD sites where they participate in this cycle through the biotic oxidation of ferrous iron. (wikipedia.org)
Iron exists in numerous forms in water and is commonly bonded or co-ordinated to other species such as water molecules or electron donor partners (Johnson et al 2007). (europa.eu)

These insoluble species are thus predominant at environmentally relevant pH. (europa.eu)

Because of its corrosive nature, this water could contain elevated levels of toxic metals, damage metal pipes. (dewdon.com)

We identified ten specifier proteins from a range of species of the Brassicaceae and assigned each of them to one of the three specifier protein types (NSP, nitrile-specifier protein, ESP, epithiospecifier protein, TFP, thiocyanate-forming protein) after heterologous expression in Escherichia coli . (biomedcentral.com)

The use of constructed wetlands as final polishing step in WWTPs or as sole treatment in small communities can constitute a good solution for recalcitrant compounds ( Verlicchi and Zambello, 2014 ). (frontiersin.org)

Efficient cleaning systems are needed to avoid or at least to reduce the intrusion of these compounds in our surface and groundwater systems, thus maintaining a high level of drinking water quality. (frontiersin.org)

They regulate workplaces where workers handle toxic substances. (allperfecthealth.com)
How will possible remediation strategies affect the geochemical environment (e.g., by releasing other toxic substances, or by adding or removing substances upon which microbial activity and contaminant degradation depend)? (nationalacademies.org)

Therefore, an advanced oxidation process is one of the alternative for the treatment of refractory organic compounds [ 7 ]. (eeer.org)

Glucosinolates are amino acid-derived thioglucosides with a sulfated aldoxime moiety and variable side chains (Figure 1 A) that are present in the Brassicales [ 11 - 13 ]. (biomedcentral.com)
Although Zn is an essential nutrient for animal and plant health, it is also a heavy metal and can become toxic if present in the environment in excessive amounts. (wsu.edu)

One of the goals of this study was to explain the importance of characterization to the effectiveness of source remediation, including a discussion of tools or methods used to delineate sources of organics contamination in the subsurface. (nationalacademies.org)

Recently, the identification of endophytic microorganisms from different plant species growing in contaminated sites has provided a list of candidates which could be used as bio-inoculants for bioremediation of difficult compounds. (frontiersin.org)
This results in the formation of biologically active breakdown products that play a role in plant-pathogen and plant-insect interactions and have attracted a lot of interest as health-promoting compounds in our diet [ 14 - 18 ]. (biomedcentral.com)
The compound was first extracted and isolated from plant species Gaultheria procumbens in 1843. (drugbank.com)
In this case, cumin seeds produced under saline conditions may function as a potential source of essential oil and antioxidant compounds, which could support the utilization of this plant in a large field of applications such as food industry. (cyberleninka.org)

toxic effect of noxious foodstuffs (988. (cdc.gov)

Anatomy4

Organisms1

Chemicals and Drugs67

Analytical, Diagnostic and Therapeutic Techniques and Equipment17

Phenomena and Processes15

Disciplines and Occupations2

Information Science2

Chloride3

Oxidation state4

Inorganic4

Salts4

Ferric6

Hydrogen3

Hexavalent chromium2

Wastewater3

Soluble3

Concentrations3

Solubility3

Chromium4

Ions1

Arsenic1

Oxidize2

Sulfide5

Bacteria4

Phenolic2

Catalytic3

Stable1

Dichromate2

Sodium1

Concentration2

Minerals1

Reaction3

Phragmites1

Hazardous2

Methyl2

Soil2

Oxygen1

Chemicals2

Chemistry2

Copper1

Phases1

Sulfur1

Typically2

Iron2

Environmentally1

Corrosive1

Proteins1

Solution1

Water1

Substances2

Treatment1

Present2

Sources1

Plant4

Effect1