Arsenic triselenide
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| Arsenic triselenide | |
|---|---|
| Other names | Arsenic(III) selenide |
| Identifiers | |
| CAS number | [1303-36-2] |
| Properties | |
| Molecular formula | As2Se3 |
| Molar mass | 386.72 g/mol |
| Appearance | brown-black powder odorless |
| Density | 4.75 g/cm3, solid |
| Melting point |
360°C |
| Solubility in water | insoluble |
| Hazards | |
| EU classification | not listed |
| NFPA 704 |
 0
4
0
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| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Arsenic triselenide (As2Se3) is an inorganic chemical compound, a selenide of arsenic.
Amorphous arsenic triselenide is used as a chalcogenide glass for infrared optics, as it transmits light with wavelengths between 870 nm and 17.2 µm.
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