Bisulfide

Bisulfide
Wireframe structural formula of bisulfide with the explicit hydrogen added
Names
IUPAC name
Hydrosulfide
Systematic IUPAC name
Sulfanide (rarely used, not common)
Other names
  • hydrosulfide
  • hydrogenosulfide
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
24766
  • InChI=1S/H2S/h1H2/p-1
    Key: RWSOTUBLDIXVET-UHFFFAOYSA-M
  • [SH-]
Properties
HS
Molar mass 33.07 g·mol−1
Conjugate acid Hydrogen sulfide
Conjugate base Sulfide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Bisulfide (or bisulphide in British English) is an inorganic anion with the chemical formula HS (also written as SH). It contributes no color to bisulfide salts, and its salts may have a distinctive putrid smell. It is a strong base. Bisulfide solutions are corrosive and attack the skin.

It is an important chemical reagent and an industrial chemical, mainly used in paper pulp industry (Kraft process), textiles, synthetic flavors, coloring brasses, and iron control.