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Hydrogen sulfide was a reagent in the qualitative inorganic analysis of metal ions. In these analyses, heavy metal (and nonmetal) ions (e.g., Pb (II), Cu (II), Hg (II), As (III)) are precipitated from solution upon exposure to H2S. The components of the resulting solid are then identified by their reactivity.
These structures are extremely fragile, and even a small air bubble emitted by a diver can disperse them in the water. Sulfur-reducing bacteria are microorganisms able to reduce elemental sulfur (S 0) to hydrogen sulfide (H 2 S). [1] These microbes use inorganic sulfur compounds as electron acceptors to sustain several activities such as ...
Microbial oxidation of sulfur is the oxidation of sulfur by microorganisms to build their structural components. The oxidation of inorganic compounds is the strategy primarily used by chemolithotrophic microorganisms to obtain energy to survive, grow and reproduce. Some inorganic forms of reduced sulfur, mainly sulfide (H 2 S/HS −) and ...
Sulfate-reducing microorganism. Desulfovibrio vulgaris is the best-studied sulfate-reducing microorganism species; the bar in the upper right is 0.5 micrometre long. 4) as terminal electron acceptor, reducing it to hydrogen sulfide (H 2 S). [1][2] Therefore, these sulfidogenic microorganisms "breathe" sulfate rather than molecular oxygen (O 2 ...
We documented the components of CAFO odor — the organic dusts, irritant ammonia and hydrogen sulfide gases, and the numerous odiferous volatile organic compounds that result in odor related ...
Hydrogen sulfide is produced in small amounts by some cells of the mammalian body and has a number of biological signaling functions. Only two other such gases are currently known: nitric oxide (NO) and carbon monoxide (CO). The gas is produced from cysteine by the enzymes cystathionine beta-synthase and cystathionine gamma-lyase.
Dissimilatory sulfate reduction is a form of anaerobic respiration that uses sulfate as the terminal electron acceptor to produce hydrogen sulfide. This metabolism is found in some types of bacteria and archaea which are often termed sulfate-reducing organisms. The term " dissimilatory " is used when hydrogen sulfide is produced in an anaerobic ...
Sulfur is converted to hydrogen sulfide through reduction, partly by bacteria. H 2 S kills bacteria (possibly including Propionibacterium acnes which plays a role in acne [2]), fungi, and parasites such as scabies mites. In the gut, H 2 S increases motility, acting as a laxative. [1]