Tetrasulfane

Tetrasulfane

Names
Other names Dihydrogen tetrasulfide
Identifiers
3D model (JSmol)	Interactive image
ChEBI	CHEBI:50364
ChemSpider	74749
Gmelin Reference	184498
PubChem CID	82836
InChI InChI=1S/H2S4/c1-3-4-2/h1-2H Key: IKRMQEUTISXXQP-UHFFFAOYSA-N
SMILES SSSS
Properties
Chemical formula	H2S4
Molar mass	130.26 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Tetrasulfane (S₄H₂) is an inorganic chemical compound featuring a disulfide and two thiol groups.

Similar to other polysulfanes, it can be made by neutralizing the given polysulfane salt with an acid, such as HCl or H₂SO₄. Example given with HCl and Na₂S₄:¹

Na₂S₄ + 2 HCl → 2 NaCl + H₂S₄

Same as other polysulfanes, tetrasulfane it is a yellowish, oily liquid. Its density is around 1.5 g/cm³ (±0.1 g/cm³).²

• Trisulfane
• Disulfane
• Hydrogen sulfide