Sulfide(2-) is a divalent inorganic anion obtained by removal of both protons from hydrogen sulfide. It is a conjugate base of a hydrosulfide. ChEBI. Chemical groups containing the covalent sulfur bonds -S-. The sulfur atom can be bound to inorganic or organic moieties Sulfide is an inorganic anion of sulfur with the chemical formula S2 − or a compound containing one or more S2 − ions. It contributes no color to sulfide salts. As it is classified as a strong base, even dilute solutions of salts such as sodium sulfide (Na2S) are corrosive and can attack the skin. Sulfide is the simplest sulfur anion The most representative resin of polyarylene sulfide resin is the polyphenylene sulfide (PPS), and its structure is written as. PPS is a semi-crystalline polymer which has good mechanical properties, excellent medium resistance. PPS is stable in inorganic acid, alkali, salt, organic acid, ester, ketone, alcohol, and so on sulfide, also spelled sulphide, any of three classes of chemical compounds containing the element sulfur.The three classes of sulfides include inorganic sulfides, organic sulfides (sometimes called thioethers), and phosphine sulfides. Inorganic sulfides are ionic compounds containing the negatively charged sulfide ion, S 2−; these compounds may be regarded as salts of the very weak acid.

Sulfide definition is - any of various organic compounds characterized by a sulfur atom attached to two carbon atoms The latest tweets from @Sulfide Hydrogen sulfide is a chemical compound with the formula H 2 S.It is a colorless chalcogen hydride gas with the characteristic foul odor of rotten eggs. It is poisonous, corrosive, and flammable. Hydrogen sulfide is often produced from the microbial breakdown of organic matter in the absence of oxygen, such as in swamps and sewers; this process is commonly known as anaerobic digestion which is. Sulfide DOC316.53.01136 USEPA1 Methylene Blue Method 2 Method 8131 5 to 800 µg/L S2- (spectrophotometers) 0.01 to 0.70 mg/L S2- (colorimeters) Reagent Solution Scope and application: For testing total sulfides, H 2S, HS-, and certain metal sulfides in groundwater, wastewater, brines and seawater

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In chemistry it is important to be able to tell the difference between the Sulfide, Sulfite, and Sulfate ion. While the names are similar, they are very dif.. Recently, hydrogen sulfide (H 2 S), an endogenous gasotransmitter, has been found to regulate multiple cellular processes through complex redox reactions under similar cell stress environments. Three enzymes synthesize H 2 S: cystathionine-β-synthase, cystathionine γ-lyase, and 3-mercaptopyruvate sulfurtransferase Sulfide. Sulfide sind Salze beziehungsweise Alkyl- oder Aryl derivate des Schwefelwasserstoffs (H 2 S). Die Salze gehören zur Stoffgruppe der Metall-Schwefel-Verbindungen und enthalten das Sulfid- Anion S 2− als Bestandteil. Das Anion selbst wird ebenfalls kurz als Sulfid bezeichnet. Metallsulfide stellen in der Mineralogie eine wichtige.

Sulfide S-2 - PubChe

Chloromethyl methyl sulfide. The protein encoded by this gene may function in mitochondria to catalyze the conversion of sulfide to persulfides, thereby decreasing toxic concencrations of sulfide. Alternative splicing results in multiple transcript variants that encode the same protein. [provided by RefSeq, Sep 2012 Hydrogen sulfide. Related Pages. Synonyms & Trade Names Hydrosulfuric acid, Sewer gas, Sulfuretted hydrogen CAS No. 7783-06-4 RTECS No. MX1225000. DOT ID & Guide. 1053 117. Formula. H₂S. Conversion. 1 ppm = 1.40 mg/m 3. IDLH. 100 ppm See: 7783064. Exposure Limits. NIOSH RE sulfide (plural sulfides) ( American spelling , chemistry ) Any compound of sulfur and a metal or other electropositive element or group . Derived terms [ edit

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Sodium sulfide is strongly alkaline. It can cause significant skin burns. Reacting with acid can form hydrogen sulfide, which is a highly toxic and flammable gas. In reduced ventilation spaces, hydrogen sulfide accumulates at the bottom. To use hydrogen sulfide, one should keep the safety data sheet with them The carcinogenicity of cupric oxide, cupric sulfide, and cuprous sulfide in 2 to 3 month old Wistar rats /was studied/.Groups of 30-32 rats were given single im injections containing 20 mg of cupric oxide (16 mg copper), cupric sulfide (13.3 mg copper), and cuprous sulfide (16 mg copper) into the left and the right thigh of each rat.All animals were observed for up to 20 months, after which. Marking: Hydrogen Sulfide, liquefied, UN1053, RQ* Inhalation hazard Label: Poison gas and Flammable gas Placard: Poisonous gas/1053 Hazardous Substance/RQ: Hydrogen sulfide/100# Shipping Description: Hydrogen sulfide, liquefied, 2.3 (Poisonous gas), UN 1053, RQ*, Poison - Inhalation Hazard Zone B Packaging References: 49 CFR 173.304, 173.314.

sulfide (2-) Definition. A divalent inorganic anion obtained by removal of both protons from hydrogen sulfide. Stars. This entity has been manually annotated by the ChEBI Team. Supplier Information. ChemicalBook:CB5201398, ChemicalBook:CB2201397, eMolecules:530115, MolPort-001-782-881. Download. Molfile XML SDF Hydrogen sulfide, also known as H 2 S, is produced by the anaerobic decomposition of organic sulfur bearing materials. These may be related to natural gas, petroleum, wastewater sludge, pulping liquors and other organic materials. Hydrogen Sulfide is a colorless, toxic and flammable gas that is dangerous at extremely low levels

Sulfide - an overview ScienceDirect Topic

  1. Procedure of Sulfide, Indole, Motility (SIM) Test. Take pure colonies from an 18-24-hour old culture on a solid medium. Inoculate the SIM Medium by stabbing the center of the medium to a depth of half an inch. Incubate the inoculated medium aerobically at 37°C for 18-24 hours. Observe for hydrogen sulfide production and motility of test organism
  2. Sulfide Oxidation with Hydrogen Peroxide (H2O2) Sulfide Odor Control. Sulfide is found throughout the environment as a result of both natural and industrial processes. Most sulfide found in nature was produced biologically (under anaerobic conditions) and occurs as free hydrogen sulfide (H2S) - characterized by its rotten egg odor
  3. Sulfide. Trừ khi có ghi chú khác, dữ liệu được cung cấp cho các vật liệu trong trạng thái tiêu chuẩn của chúng (ở 25 °C [77 °F], 100 kPa). Sulfide (tên hệ thống sulfanedide và sulfide (2−)) là một anion vô cơ của lưu huỳnh với công thức hóa học là S 2− hoặc một hợp chất.
  4. Introduction. Hydrogen sulfide (H 2 S) formation by dissimilatory sulfate-reducing bacteria (SRB) under strict anaerobic circumstances is a common problem in sediments, sewer systems, oil reservoirs and anaerobic effluents (Holmer & Storkholm, 2001; McComas., 2001).The emission of H 2 S into the atmosphere of sewer systems does not only imply odor nuisances and possible health risks

  1. Sulfides are compounds derived from the sulfide anion, S2-. As sulfur is a member of group 16 on the periodic table, it is considered a chalcogen, and sulfide compounds belong to a class of compounds known as chalcogenides. The bonding in transition metal sulfides is highly covalent, a property that is intimately related to their ability to function as semiconductors and pigments . These are.
  2. Hydrogen sulfide (also known as H2S, sewer gas, swamp gas, stink damp, and sour damp) is a colorless gas known for its pungent rotten egg odor at low concentrations. It is extremely flammable and highly toxic. Hydrogen sulfide is used or produced in a number of industries, such as. Hydrogen sulfide also occurs naturally in sewers, manure pits.
  3. Hydrogen sulfide can be handled safety. Arch Environ Health 12:795-800. 10. Tab Biol Per [1933]; 3:231 (in German). 11. Tansey MF, Kendall FM, Fantasia J, Landin WE, Oberly R [1981]. Acute and subchronic toxicity studies of rats exposed to vapors of methyl mercaptan and other reduced sulfur compounds

This chapter summarizes the relevant epidemiologic and toxicologic studies of hydrogen sulfide. It presents selected chemical and physical properties, toxicokinetic and mechanistic data, and inhalation-exposure levels from the National Research Council and other agencies. The committee considered all that information in its evaluation of the U.S. Navy's 1-h, 24-h, and 90-day exposure. Significance: Hydrogen sulfide (H 2 S) has been recognized as the third gaseous transmitter alongside nitric oxide and carbon monoxide. In the past decade, numerous studies have demonstrated an active role of H 2 S in the context of cancer biology. Recent Advances: The three H 2 S-producing enzymes, namely cystathionine γ-lyase (CSE), cystathionine β-synthase (CBS), and 3-mercaptopyruvate.

sulfide Definition, Classes, Formulas, & Facts Britannic

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Sulfide Definition of Sulfide by Merriam-Webste

  1. Hydrogen sulfide is a highly flammable, explosive gas, and can cause possible life-threatening situations if not properly handled. In addition, hydrogen sulfide gas burns and produces other toxic vapors and gases, such as sulfur dioxide
  2. Hydrogen Sulfide Test - Principle, Procedure, Uses and Interpretation. Some microorganisms have an ability to reduce sulfur (Sulphur) containing compounds to hydrogen sulfide during metabolism which is commonly employed as a test measure for their identification in laboratories. Numerous methods are used to detect H2S production by micro.
  3. Sulfide solid electrolytes can be processed in a number of forms (glass, glass-ceramic, and crystalline) and have a wide range of available chemistries. Crystalline sulfide materials demonstrate ionic conductivity on par with those of liquid electrolytes through the utilization of near ideal conduction pathways
  4. sulfide ion (S=), the bisulfide or hydrosulfide ion (HS-), aqueous hydrogen sulfide (H2S(aq)), and hydrogen sulfide gas (H2S(g)). Sulfide Ion (S=) The sulfide ion carries a double negative charge indicating that it reacts primarily by giving up two electrons in the outer shell. It is a colorless ion in solution and cannot leave wastewater in.
  5. Abstract. Volcanogenic massive sulfide deposits, also known as volcanic-hosted massive sulfide, volcanic-associated massive sulfide, or seafloor massive sulfide deposits, are important sources of copper, zinc, lead, gold, and silver (Cu, Zn, Pb, Au, and Ag). These deposits form at or near the seafloor where circulating hydrothermal fluids.
  6. erals comprise an economically important class of

2D and nanostructured metal sulfide materials are promising in the advancement of several gas sensing applications due to the abundant choice of materials with easily tunable electronic, optical, physical, and chemical properties. These applications are particularly attractive for gas sensing in environmenta Recent Open Access Articles Journal of Materials Chemistry A Recent Review Article Catalytic hydrolysis technology of carbonyl sulfide (COS) at low temperature was reviewed, including the development of catalysts, reaction kinetics, and reaction mechanism of COS hydrolysis. It was indicated that the catalysts are mainly involved metal oxide and activated carbon. The active ingredients which can load on COS hydrolysis catalyst include alkali metal, alkaline earth metal.

Hydrogen sulfide (H 2 S) is a colorless, flammable gas that has strong odor of rotten eggs. H 2 S poisoning is a rarity, mainly observed in industrial settings. However, the deliberate mixture of household chemicals to create hydrogen sulfide is increasingly used as means of committing suicide, and these cases pose a potential risk for first responders The platinum-nickel/nickel sulfide heterostructures can deliver a current density of 37.2 mA cm−2 at an overpotential of 70 mV, which is 9.7 times higher than that of commercial Pt/C Hydrogen Sulfide or sour gas (H2S) is a flammable, colorless gas that is toxic at extremely low concentrations. It is heavier than air, and may accumulate in low-lying areas. It smells like rotten eggs at low concentrations and causes you to quickly lose your sense of smell. Many areas where the gas is found have been identified, but pockets of the gas can occur anywhere

A process for reducing hydrogen sulfide gas evolution during dissolution of ferrous sulfide with an aqueous acidic solution comprising contacting the ferrous sulfide with an aqueous acidic solution containing an effective amount of an additive comprising at least one member selected from the group consisting of maleic acid, maleic anhydride and the alkali metal and ammonium salts of maleic acid Hydrogen sulfide (H 2 S) is an emerging neuromodulator that is considered to be a gasotransmitter similar to nitrogen oxide (NO) and carbon monoxide (CO). H 2 S exerts universal cytoprotective effects and acts as a defense mechanism in organisms ranging from bacteria to mammals. It is produced by the enzymes cystathionine β</i>-synthase (CBS), cystathionine <i>ϒ</i>-lyase (CSE), 3.

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Arsenic trisulfide is a yellow solid. It is a semiconductor. It has a glass ( amorphous) form and a crystalline form. It burns in air to make sulfur dioxide and arsenic trioxide, which makes a highly toxic smoke. Arsenic trisulfide can oxidize on the surface to make a highly toxic layer of arsenic trioxide as well Chapter 6.6 Hydrogen sulfide General Description Sources Hydrogen sulfide (H2S) is a colourless gas, soluble in various liquids including water and alcohol. It can be formed under conditions of deficient oxygen, in the presence of organic material and sulfate. Most of the atmospheric hydrogen sulfide has natural origins. Hydroge To address these problems, we propose liquid-S/sulfide composite cathode materials in combination with an ionic liquid electrolyte at intermediate temperatures (∼150 °C). The composite structure is spontaneously fabricated by electrochemically oxidizing metal sulfides, yielding liquid S embedded in a porous metal-sulfide conductive frame Hydrogen sulfide (H 2 S) is an ideal toxicant to study the role of epigenetics in responding to environmental toxicants, because H 2 S exposure has clear effects on sulfide processing and energy metabolism . H 2 S is one of the most toxic inorganic gases for metazoan organisms

Hydrogen sulfide. 1. H S H. 2. Training Goals for Year 2010 !!!!!! • Development of knowledgeable and competent employees who may be exposed to a sudden release of Hydrogen Sulfide gas. • Provide complete and consistent training to industry (Petroleum, Industrial, Municipal) 2. 3. 3 Hydrogen Sulfide Gas is a toxic (poisonous) gas that can. In the HS-C kit, sulfide discolors a detection paper. Results are obtained by comparison of the color to a printed chart. Most economical method for determining hydrogen sulfide content in water samples. Uses reliable, cost effective color comparison method. Treated reagent papers are supplied for 100 tests; effervescence tablets are supplied. DESCRIPTIVE MODEL OF KUROKO MASSIVE SULFIDE. MODEL 28a. By Donald A. Singer. APPROXIMATE SYNONYM Noranda type, volcanogenic massive sulfide, felsic to intermediate volcanic type.. DESCRIPTION Copper- and zinc-bearing massive sulfide deposits in marine volcanic rocks of intermediate to felsic composition (see fig. 145).. Figure 145. Cartoon cross section of kuroko massive sulfide deposit CSB Holds Public Board Meeting to Adopt Final Report into 2019 Hydrogen Sulfide Release at the Aghorn Operating Waterflood Station in Odessa, Texas 5/4/2021. Register for the CSB's May 4 Public Board Meeting 4/22/2021. CSB Releases New Aghorn Factual Update 7/27/2020

Sulfide (@sulfide) Twitte

Mercury (II) sulfide is a red or black solid. It is found in two forms; cinnabar (alpha form) and metacinnabar (beta form). The alpha form is more common. The beta form is made when a mercury (II) salt like mercury (II) chloride reacts with hydrogen sulfide. It reacts with only the strongest acids to make hydrogen sulfide and a mercury (II. Highly adapted to deep-sea hot vents, the scaly-foot gastropod Chrysomallon squamiferum is unique among living and extinct animals in possessing an imbricating scale-armor reinforced by iron sulfide nanoparticles. Mechanisms behind its biogenic sulfide synthesis are expected to revolutionize industrial production of metal chalcogenide nanoparticles, but how the gastropod manages such processes. The enantioselective construction of axially chiral compounds by electrophilic carbothiolation of alkynes is disclosed for the first time. This enantioselective transformation is enabled by the use of a Ts-protected bifunctional sulfide catalyst and Ms-protected ortho-alkynylaryl amines (Ts=tosyl; Ms=mesyl).Both electrophilic arylthiolating and electrophilic trifluoromethylthiolating reagents. Zinc sulfide - an inorganic compound with the chemical formula ZnS - is a highly purified additive that can be used to enhance coatings and plastics products. Gray. For better coatings and plastics . At Venator we are proud to produce a white pigment based on extremely pure zinc sulfide Sodium sulfide is the chemical compound with the formula Na2S, or more commonly its hydrate Na2S 9H2O. Both the anhydrous and the hydrated salts are colorless solids, They are water-soluble, giving strongly alkaline solutions..

Hydrogen sulfide - Wikipedi

What is hydrogen sulfide? Hydrogen sulfide (H2S) is a colorless gas with the odor of rotten eggs. The most common sources of H2S emissions are oil and natural gas extraction and processing, and natural emissions from geothermal fields. It is also formed during bacterial decomposition of human and animal wastes, and is present in emissions from sewage treatment facilities and landfills Sulfide was used as an electron donor early in the evolution of photosynthesis, with many extant photosynthetic bacteria still capable of using sulfur compounds such as hydrogen sulfide (H<sub>2</sub>S) as a photosynthetic electron donor. Although enzymes involved in H<sub>2</sub>S oxidation have be

Sulfide - Hach Compan

Sulfide, Sulfite, Sulfate Ions (Difference and Formulas

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Sulfide precipitation of heavy metals - EPA - Home Page

Polyphenylene sulfide (PPS) is a semicrystalline material. It offers an excellent balance of properties, including high temperature resistance, chemical resistance, flowability, dimensional stability and electrical characteristics. PPS must be filled with fibers and fillers to overcome its inherent brittleness Among various inorganic solid electrolytes, sulfide solid electrolytes have received widespread attention because of their high ionic conductivity and good mechanical properties. Herein, we summarize the development of several typical sulfide solid electrolytes and the problems to be addressed in emerging all-solid-state lithium batteries

Sulfide S ChemSpide

Results: We showed that hydrogen sulfide (H2S) inhibited IKKβ activation in the cell model of human PAEC inflammation induced by monocrotaline pyrrole-stimulation or knockdown of cystathionine γ-lyase (CSE), an H2S generating enzyme. Mechanistically, H2S was proved to inhibit IKKβ activity directly via sulfhydrating IKKβ at cysteinyl. Herein, we report the early history, synthesis and characterization, mechanical properties, and Li + ion transport mechanisms of inorganic sulfide and oxide electrolytes. Furthermore, we highlight the importance of the fabrication technology and experimental conditions, such as the effects of pressure and operating parameters, on the. sulfide dissociates, forming monohydrogensulfide(1-) (HS-) and sulfide (S2-) ions. The relative concentrations of these species are a function of the pH of the water, hydrogen sulfide concentrations increasing with decreasing pH. At pH 7.4, about one-third exists a Hydrogen sulfide is a serious and potentially lethal hazard, so awareness, detection and monitoring of H 2 S is essential. Since hydrogen sulfide gas is present in some subsurface formations, drilling and other operational crews must be prepared to use detection equipment, personal protective equipment, proper training and contingency. Hydrogen sulfide. Hydrogen sulfide is a dangerous toxic gas found in many industries. At low concentrations it causes health problems. At high concentrations it can be lethal. It smells like rotten eggs, but can numb the sense of smell so quickly that workers won't notice the odour. How workers are exposed. The risks

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Hydrogen sulfide (H 2 S) is an environmental toxin and a heritage of ancient microbial metabolism that has stimulated new interest following its discovery as a neuromodulator. While many physiological responses have been attributed to low H 2 S levels, higher levels inhibit complex IV in the electron transport chain. To prevent respiratory poisoning, a dedicated set of enzymes that make up the. Chart corrected 1/12/2002, due to e-mail from a victim of H2S poisoning. Can smell. Safe for 8 hours exposure. May cause eye irritation. Mask must be used as it damages metabolism. Maximum exposure 10 minutes. Kills smell in 3 to 15 minutes. Causes GAS EYE and throat injury Accidental Oral Ingestion. Selenium Sulfide Topical Suspension USP, 2.5% (Lotion) is intended for external use only. There have been no documented reports of serious toxicity in humans resulting from acute ingestion of Selenium Sulfide Topical Suspension USP, 2.5% (Lotion); however, acute toxicity studies in animals suggest that ingestion of large amounts could result in potential human toxicity The global polyphenylene sulfide (PPS) market size was estimated at USD 1.19 billion in 2018. It is anticipated to expand at a CAGR of 8.8% during the forecast period. Polyphenylene sulfide is a crystalline polymer, whose high chemical resistance and temperature performance among other properties are projected to fuel the demand over the next.

Sulfide - definition of sulfide by The Free Dictionar

Hydrogen sulfide is found naturally in volcanic gases and in some mineral waters. It is often formed during decay of animal matter. It is a part of many unrefined carbonaceous fuels, e.g., natural gas, crude oil, and coal; it is obtained as a byproduct of refining such fuels. It may be made by reacting hydrogen gas with molten sulfur or with. Hydrogen sulfide is produced in chloroplasts through the activity of sulfite reductase and in the cytosol and mitochondria by the action of sulfide-generating enzymes, and regulates/affects essential plant processes such as plant adaptation, development, photosynthesis, autophagy, and stomatal movement, where interplay with other signaling. Hydrogen sulfide can enter the body when a person breathes air containing hydrogen sulfide. This is most common for people who work in areas of higher exposure or near to facilities where hydrogen sulfide are used or produced. Exposure. Workers in the industries that use or produce hydrogen sulfide are most at risk of exposure Hydrogen sulfide. Formula: H 2 S. Molecular weight: 34.081. IUPAC Standard InChI: InChI=1S/H2S/h1H2. Copy Sheet of paper on top of another sheet. IUPAC Standard InChIKey: RWSOTUBLDIXVET-UHFFFAOYSA-N. Copy Sheet of paper on top of another sheet. CAS Registry Number: 7783-06-4. Chemical structure

A hydrogen sulfide generator using a candle - YouTub

Iron(II) Sulfide (Ferrous Sulfide) is a moderately water and acid soluble Iron source for uses compatible with sulfates. Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal Hydrogen sulfide is the chemical compound with the formula H 2S. It is a colorless gas with the characteristic foul odor of rotten eggs; it is heavier than air, very poisonous, corrosive, flammable, and explosive. Hydrogen sulfide often results from the bacterial breakdown of organic matterin the absence of oxygen gas Hydrogen sulfide (sewer gas) is a colorless gas with the odor of rotten eggs. The odor is detectable at very low concentrations, about 0.0005 parts per million (ppm) to 0.3 ppm. Hydrogen sulfide is produced naturally by decaying organic matter and is released from crude petroleum, natural gas, volcanic gases, liquid manure, sewage sludge.

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Sulfide Sigma-Aldric

Hydrogen sulfide is a flammable, colorless gas that smells like rotten eggs. People usually can smell hydrogen sulfide at low concentrations in air ranging from 0.0005 to 0.3 parts per million (ppm). Hydrogen sulfide occurs naturally in crude petroleum, natural gas, volcanic gases, and hot springs. It can also result from bacteria Find the EMC contact for your question in the EMC Directory. Method 15 Determination of Hydrogen Sulfide, Carbonyl Sulfide, and Carbon Disulfide Emissions From Stationary Sources 8-2-2017 (pdf) CFR Promulgated Test Method 15 Determination of Hydrogen Sulfide, Carbonyl Sulfide, and Carbon Disulfide Emissions From Stationary Sources hydrogen sulfide. ChEBI ID. CHEBI:16136. Definition. A sulfur hydride consisting of a single sulfur atom bonded to two hydrogen atoms. A highly poisonous, flammable gas with a characteristic odour of rotten eggs, it is often produced by bacterial decomposition of organic matter in the absence of oxygen. Stars Niken (II) sulfide là một hợp chất vô cơ với công thức hóa học NiS, gồm thành phần là hai nguyên tố niken và lưu huỳnh. Về cảm quan bên ngoài, hợp chất này là một chất rắn có màu đen được sản xuất bằng cách thúc đây các muối niken (II) tác dụng với hydro sulfide (H 2 S.

Hydrogen sulfide - CD

Hydrogen sulfide gas is also known as sewer gas because it is often produced by the breakdown of waste material. At low levels, hydrogen sulfide gas has a strong odor similar to rotten eggs. You can smell hydrogen sulfide gas at lower levels than may cause health effects, so smelling the gas does not always mean that it will make you sick Hydrogen sulfide is a major hazard in oil and gas operations, as well as in the chemical industry, municipal sewer systems and laboratories. Exposure to hydrogen sulfide (H 2 S) can cause a wide range of health effects

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