Names | ||
---|---|---|
Other names
Aluminium(III) selenide
| ||
Identifiers | ||
| ||
3D model (JSmol)
|
||
ChemSpider | ||
ECHA InfoCard | 100.013.737 | |
EC Number |
| |
PubChem CID
|
||
CompTox Dashboard (EPA)
|
||
SMILES
| ||
Properties | ||
Al2Se3 | ||
Molar mass | 290.84 g/mol | |
Appearance | yellow to brown powder | |
Odor | odorless | |
Density | 3.437 g/cm3 | |
Melting point | 947 °C (1,737 °F; 1,220 K) | |
decomposes | ||
Structure | ||
Monoclinic, mS20, Space group Cc, No. 9[2] | ||
Thermochemistry | ||
Std enthalpy of formation ΔfH |
-566.9 kJ/mol | |
Standard molar entropy S |
154.8 J/mol K | |
Hazards | ||
EU classification | not listed | |
NFPA 704 |
| |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | ||
Infobox references | ||
Aluminium selenide, also known as aluminum selenide or aluminium(III) selenide, is a chemical compound. Its chemical formula is Al2Se3. It contains aluminium in its +3 oxidation state. It contains aluminium and selenide ions.
It reacts with water to make hydrogen selenide. It is a reducing agent and can burn to make aluminium oxide and selenium dioxide.
It is made by reacting selenium with aluminium powder at a high temperature.
It is used to make hydrogen selenide.