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Aluminium arsenide

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Aluminium arsenide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.041.126
  • [Al]#[As]
Properties
AlAs
Molar mass 101.9031 g/mol
Appearance orange crystals
Density 3.72 g/cm3
Melting point 1740 °C (2013 K)
Band gap 2.12 eV (indirect)[1]
Electron mobility 200 cm2/(V·s) (300 K)
Thermal conductivity 0.9 W/(cm·K) (300 K)
3 (infrared)
Structure
Zinc Blende
T2d-F-43m
Tetrahedral
Related compounds
Related semiconductor materials Aluminium gallium arsenide, Aluminium indium arsenide, Aluminium antimonide, Boron arsenide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Aluminium arsenide is a chemical compound. Its chemical formula is AlAs. It has aluminium and arsenide ions in it.

Properties and preparation

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Aluminium arsenide is an orange solid. It is toxic because it has arsenic in it. It is a semiconductor. It reacts with acids to make arsine. It is made by reacting aluminium and arsenic.

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  1. "AlxGa1-xAs". Ioffe Database. Sankt-Peterburg: FTI im. A. F. Ioffe, RAN.