Hydrogen diselenide

Hydrogen diselenide
Selenium, Se Hydrogen, H
Names
	IUPAC name Dihydrogen diselenide
	Other names Diselane
Identifiers
CAS Number	7783-07-5 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:50476 ;
ChemSpider	4416259;
Gmelin Reference	558110
PubChem CID	5248613;
UNII	V91P54KPAM ;
	InChI InChI=1S/H2S2/c1-2/h1-2H Key: BWGNESOTFCXPMA-UHFFFAOYSA-N ; InChI=1S/H2Se2/c1-2/h1-2H Key: AVJWYAUVPWRPJX-UHFFFAOYSA-N;
	SMILES [SeH][SeH];
Properties
Chemical formula	H2Se2
Molar mass	159.958 g·mol−1
Appearance	oily liquid
Hazards
Flash point	Flammable
Related compounds
Related compounds	Hydrogen peroxide ; Hydrogen selenide; Hydrogen disulfide;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Hydrogen diselenide is an inorganic selenium compound with a chemical formula H₂Se₂ or (SeH)₂. At room temperature, hydrogen diselenide dissociates easily to hydrogen selenide (H₂Se) and elemental selenium, and is therefore not stable. However, hydrogen diselenide can be stable in some solutions.

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