Chemistry:Hydrogen diselenide

Hydrogen diselenide

Hydrogen diselenide’s ball and stick model   Selenium, Se   Hydrogen, H Hydrogen diselenide’s space filling model
Names
IUPAC name Dihydrogen diselenide
Other names Diselane
Identifiers
CAS Number	7783-07-5 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:50476 Y
ChemSpider	4416259
Gmelin Reference	558110
PubChem CID	5248613
UNII	V91P54KPAM Y
InChI InChI=1S/H2S2/c1-2/h1-2H Y Key: BWGNESOTFCXPMA-UHFFFAOYSA-N Y 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).
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Infobox references

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Hydrogen diselenide is an inorganic selenium compound with a chemical formula H
2Se
2 or (SeH)
2. At room temperature, hydrogen diselenide dissociates easily to hydrogen selenide (H
2Se) and elemental selenium, and is therefore not stable. When an aluminum-reduced hydrochloric acid solution of selenium dioxide is reacted with lead acetate, the resulting black precipitate contains Lead diselenide PbSe₂，this proves that hydrogen diselenide exists in the gas mixture.However, hydrogen diselenide can be stable in some solutions.