Aluminium selenide

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Aluminium selenide[1]
Names
Other names
Aluminium(III) selenide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.013.737
EC Number 215-110-6
PubChem {{{value}}}
SMILES {{{value}}}
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
ΔfHo298
-566.9 kJ/mol
Standard molar
entropy
So298
154.8 J/mol K
Hazards
EU classification not listed
NFPA 704

NFPA 704.svg

0
3
3
 
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.

Properties[change | change source]

It reacts with water to make hydrogen selenide. It is a reducing agent and can burn to make aluminium oxide and selenium dioxide.

Preparation[change | change source]

It is made by reacting selenium with aluminium powder at a high temperature.

Uses[change | change source]

It is used to make hydrogen selenide.

Related pages[change | change source]

References[change | change source]

  1. Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, FL: CRC Press. pp. 4–40. ISBN 0-8493-0594-2.
  2. Steigmann, G. A.; Goodyear, J. (1966). "The crystal structure of Al2Se3". Acta Crystallographica 20: 617. doi:10.1107/S0365110X66001506.