Back ثنائي كبريتيد الهيدروجين Arabic دی‌سولفید هیدروژن AZB Disulfan Czech Disulfan German دی‌سولفید هیدروژن Persian Disulfure de dihydrogène French Hidrogén-diszulfid Hungarian Disolfuro di idrogeno Italian 二硫化水素 Japanese Disulfaan Dutch

Hydrogen disulfide

Hydrogen disulfide

  Sulfur, S
  Hydrogen, H
Names
IUPAC name
Dihydrogen disulfide
Systematic IUPAC name
Disulfane
Other names
  • Dithioperoxol
  • Hydrogen disulphide
  • Hydrogen persulfide
  • Hydrogen persulphide
  • Thiosulfenic acid
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
  • InChI=1S/H2S2/c1-2/h1-2H checkY
    Key: BWGNESOTFCXPMA-UHFFFAOYSA-N checkY
  • InChI=1/H2S2/c1-2/h1-2H
    Key: BWGNESOTFCXPMA-UHFFFAOYAV
  • SS
Properties
H2S2
Molar mass 66.14 g·mol−1
Appearance Pale yellow liquid
Density 1.334 g/cm3
Melting point −89.6 °C (−129.3 °F; 183.6 K)
Boiling point 70.7 °C (159.3 °F; 343.8 K)
Hazards
Flash point flammable
Related compounds
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Hydrogen disulfide is the inorganic compound with the formula H2S2. This hydrogen chalcogenide is a pale yellow volatile liquid with a camphor-like odor. It decomposes readily to hydrogen sulfide (H2S) and elemental sulfur.[1]

  1. ^ Steudel, Ralf (2003). "Inorganic Polysulfanes H2Sn with n > 1". Topic in Current Chemistry. Topics in Current Chemistry. Vol. 231. pp. 99–126. doi:10.1007/b13182. ISBN 978-3-540-40378-4.

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