• Hydrogen sulfide Wikipedia

    OverviewUsesPropertiesProductionSafetyHydrogen sulfide in the natural environmentSee alsoAdditional resources

    The main use of hydrogen sulfide is as a precursor to elemental sulfur. Several organosulfur compounds are produced using hydrogen sulfide. These include methanethiol, ethanethiol, and thioglycolic acid. Upon combining with alkali metal bases, hydrogen sulfide converts to alkali hydrosulfides such as sodium hydrosulfide and sodium sulfide: H2S + NaOH → NaSH + H2O NaSH + NaOH → Na2S + H2O

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  • Hydrogen sulfide H2S PubChem

    Hydrogen sulfide, also known as sulfide or H2S, belongs to the class of inorganic compounds known as other non-metal sulfides. These are inorganic compounds containing a sulfur atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen belongs to the class of other non-metals. Hydrogen sulfide has been found in human brain, colon and intestine tissues, and has also been

  • Safety and Health Topics Hydrogen Sulfide Hazards

    In addition, hydrogen sulfide gas burns and produces other toxic vapors and gases, such as sulfur dioxide. In addition to exposure to hydrogen sulfide in the air, exposure to liquid hydrogen sulfide can cause "blue skin" or frostbite. If clothing becomes wet, avoid ignition sources, remove the clothing and isolate it in a safe area to allow it

  • The addition of hydrogen sulphide to alkenes

    Download Citation The addition of hydrogen sulphide to alkenes As a result of the interaction of hydrogen sulphide with 2-methylbut-2-ene at temperatures of up to 240° and pressures of up to

  • Hydrogen Sulfide H2S Gulf Coast Environmental Systems

    Sep 14, 2018· What is Hydrogen Sulfide Hydrogen sulfide is a chemical compound with the chemical formula H 2 S. This means it is made of two hydrogen atoms, and one sulfide. The sodium hydroxide addition rate is controlled by a pH analyzer, and fed by a metering pump. The reaction of SO 2 with caustic produces a mixed solution of sodium sulfite

  • FactSheet

    In addition, hydrogen sulfide is a highly flam-mable gas and gas/air mixtures can be explo-sive. It may travel to sources of ignition and flash back. If ignited, the gas burns to pro-duce toxic vapors and gases, such as sulfur dioxide. FactSheet Hydrogen Sulfide (H 2S) Hydrogen sulfide is a colorless, flammable, extremely hazardous gas with a

  • Hydrogen Sulfide NIOSH CDC

    Jun 21, 2019· Hydrogen sulfide (H₂S) is a colorless gas with a strong odor of rotten eggs. Exposure to hydrogen sulfide may cause irritation to the eyes and respiratory system. It can also cause apnea, coma, convulsions; dizziness, headache, weakness, irritability, insomnia; stomach upset,

  • Hydrogen Sulfide SIBO Everything You Need To Know (2020)

    Mar 24, 2020· Hydrogen Sulfide and SIBO. Despite the usefulness of breath testing, it is important to realize that some patients with SIBO may also have too much hydrogen sulfide (H 2 S) in their bodies, which is not a type of overgrowth that is detectable by traditional breath tests yet. In H 2 S SIBO, the hydrogen sulfide producing bacteria compete with

  • Hydrogen Sulfide Control in Wastewater Collection Systems

    EnvironmentFormationMechanismConstructionManagementClimateSafetyAdministrationInvestigationLocationGeography and climateIssuesDiscoveryOperationAdvantagesUsesSelected publicationsWhen most environmental professionals think about hydrogen sulfide control in their wastewater collection systems, they are concerned with odor and corrosion. Instrumentation is now availe to measure sulfides online, providing the opportunity to optimize the chemical dosage and monitor sulfide control. The City of Santa Cruz has been treating wastewater at the facility near Nearys Lagoon and disposing of the effluent in the ocean since 1928. Treatment capacity has been expanded several time
  • Hydrogen Sulfide and Sulfur Bacteria in Well Water EH

    Aug 26, 2019· Activated carbon filters are effective for hydrogen sulfide levels less than 1 milligram per liter (mg/L). The gas is trapped by the carbon until the filter is saturated. Since the carbon filter can remove substances in addition to hydrogen sulfide gas, it is difficult to predict its serv life.

  • Hydrogen sulfide Wikipedia

    Hydrogen sulfide is often produced from the microbial breakdown of organic matter in the absence of oxygen gas, such as in swamps and sewers; this process is commonly known as anaerobic digestion which is done by sulfate-reducing microorganisms. H 2 S also occurs in volcanic gases, natural gas, and in some sources of well water. The human body produces small amounts of H

  • The addition of hydrogen sulphide to alkenes

    Download Citation The addition of hydrogen sulphide to alkenes As a result of the interaction of hydrogen sulphide with 2-methylbut-2-ene at temperatures of up to 240° and pressures of up to

  • Hydrogen Sulfide NIOSH CDC

    Hydrogen sulfide (H₂S) is a colorless gas with a strong odor of rotten eggs. Exposure to hydrogen sulfide may cause irritation to the eyes and respiratory system. It can also cause apnea, coma, convulsions; dizziness, headache, weakness, irritability, insomnia; stomach upset, and if liquid: frostbite

  • Hydrogen Sulfide (H2S) Is A Frequent By-product Of

    Hydrogen sulfide is a weak diprotic acid, which releases protons (H+ ions) to produce bisulfide (HS-) ions and sulfide (S2-) ions. The proportion of the total aqueous sulfide (H2S + HS- + S2-) concentration that is in the form of H2S is therefore dependent on the pH. In what way would the addition of soluble ferrous chloride (FeCl) to the

  • Hydrogen Sulfide: Emerging Role in Bladder, Kidney, and

    Hydrogen sulfide (H 2 S) is the latest of the gasotransmitter family and known to play essential roles in cancer pathophysiology. H 2 S is produced endogenously and can be administered exogenously. Recent studies showed that H 2 S in cancers has both pro- and antitumor roles. Understanding the difference in the expression and localization of tissue-specific H 2 S-producing enzymes in

  • New technologies fight hydrogen sulfide in sewers

    Hydrogen sulfide is a malodorous and toxic gas, which in addition to strong odor nuisances can lead to corrosion damage of pipes, wells and constructions, thereby significantly reducing the lifetime and value of these assets. The utilities largely handle the hydrogen sulfide challenges by dosing chemicals in the collection systems, but it is