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Hydrogen sulfide is a chemical compound with the formula H 2 S.It is a colorless chalcogen-hydride gas, and is toxic, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. [11]
Download QR code; Print/export Download as PDF; Printable version; In other projects Wikimedia Commons; ... Hydrogen sulfide – H 2 S; Hydrogen telluride – H 2 Te;
Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... Hydrogen sulfide: H 2 S 12.34 [17] Nitric oxide: NO 18.90 [7] Nitrous oxide: N 2 ...
Many gases have toxic properties, which are often assessed using the LC 50 (median lethal concentration) measure. In the United States, many of these gases have been assigned an NFPA 704 health rating of 4 (may be fatal) or 3 (may cause serious or permanent injury), and/or exposure limits (TLV, TWA/PEL, STEL, or REL) determined by the ACGIH professional association.
Hydrogen sulfide is also involved in the disease process of type 1 diabetes. The beta cells of the pancreas in type 1 diabetes produce an excess of the gas, leading to the death of these cells and to a reduced production of insulin by those that remain. [5] In 2005, it was shown that mice can be put into a state of suspended animation-like ...
Treatment of sulfur with hydrogen gives hydrogen sulfide.When dissolved in water, hydrogen sulfide is mildly acidic: [5] H 2 S ⇌ HS − + H +. Hydrogen sulfide gas and the hydrosulfide anion are extremely toxic to mammals, due to their inhibition of the oxygen-carrying capacity of hemoglobin and certain cytochromes in a manner analogous to cyanide and azide.
Hydrogen peroxide is a typical oxidant—for example, with dimethyl sulfide (S(CH 3) 2): [9] S(CH 3) 2 + H 2 O 2 → OS(CH 3) 2 + H 2 O OS(CH 3) 2 + H 2 O 2 → O 2 S(CH 3) 2 + H 2 O. In analogy to their easy alkylation, sulfides bind to metals to form thioether complexes. Consequently, Lewis acids do not decompose thioethers as they do ethers ...
Strictly speaking, a sour gas is any gas that specifically contains hydrogen sulfide in significant amounts; an acid gas is any gas that contains significant amounts of acidic gases such as carbon dioxide (CO 2) or hydrogen sulfide. Thus, carbon dioxide by itself is an acid gas but not a sour gas.