Hydrogen Sulfide Properties, Molecular Formula, Applications - WorldOfChemicals

Hydrogen Sulfide Properties

Hydrogen Sulfide

Resil SME 300-Product_Structure
Molecule 3D Structure Image
Resil SME 300-Molecule 3D Structure
Molecule Structure Image



Hydrogen sulfide is a very poisonous, flammable gas with the characteristic foul odor of rotten eggs. It often results from the bacterial breakdown of organic matter in the absence of oxygen, such as in swamps and sewers. It also occurs in volcanic gases, natural gas, and some well waters. The human body produces small amounts of H2S and uses it as a signaling molecule. Several organosulfur compounds are produced using hydrogen sulfide. Upon combining with alkali metal bases, hydrogen sulfide converts to alkali hydrosulfides such as sodium hydrosulfide and sodium sulfide, which are used in the degradation of biopolymers. Hydrogen sulfide used to have importance in analytical chemistry for well over a century, in the qualitative inorganic analysis of metal ions. In the purification of metal ores by flotation, mineral powders are often treated with hydrogen sulfide to enhance the separation.

Chemical Properties

Acidity 6.89
Appearance Colorless gas
Boiling Point -60.28 °C
CAS Number 7783-06-4
Density 1.363 g/l
Dipole Moment 0.97 D
EINECS Number 231-977-3
IUPAC Name Hydrogen Sulfide
InChI 1S/H2S/h1H2
Melting Point -82.30 °C
Molar Mass 34.082 g/mol
Molecular Formula H2S
Molecular Shape Bent but without any hybridisation
NFPA 704 H-4,F-4,R-0,C-NA
RTECS Number MX1225000
Refractive 1.000644
Related Compounds Phosphine
Solubility 0.4 g/100 ml
Synonyms Sulfuretted Hydrogen;Sulfurated Hydrogen;Sulfane;Sulfur Hydride;Dihydrogen Sulfide;Dihydrogen Monosulfide;Hydrosulfuric Acid;Sewer Gas;Stink Damp;Rotten Egg Gas;Hydrogen Sulphide
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