Hydrogen diselenide
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| Names | |||
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| IUPAC name
Dihydrogen diselenide
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| Other names
Diselane
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| Identifiers | |||
3D model (JSmol)
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| 558110 | |||
PubChem CID
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| UNII | |||
CompTox Dashboard (EPA)
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| Properties | |||
| H2Se2 | |||
| Molar mass | 159.958 g·mol−1 | ||
| Appearance | oily liquid | ||
| Hazards | |||
| Flash point | Flammable | ||
| Related compounds | |||
Related compounds
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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 diselenide is an inorganic selenium compound with a chemical formula H2Se2 or (SeH)2.[1][2] At room temperature, hydrogen diselenide dissociates easily to hydrogen selenide (H2Se) 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.[3]However, hydrogen diselenide can be stable in some solutions.[3]
References
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