Aluminium hydride

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Aluminium hydride

General
Other names	Aluminium(III) Hydride, Alane, Aluminium Trihydride
Molecular formula	(Al H₃)_n
Molar mass	30.005 g/mol
Appearance	white crystalline solid
CAS number	[7784-21-6]
Properties
Density and phase	1.486 g/cm³, solid
Solubility in water	? g/L (25°C)
Melting point	150°C
Boiling point	Decomposes
Hazards
EU classification	?
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Aluminium hydride, chemical formula (Al H₃)_n, can be produced by reacting trimethylaluminium with hydrogen. It burns explosively in air.

[edit] Uses

Aluminium hydride may be a useful material for storing hydrogen in hydrogen-fueled vehicles. It contains up to 10% hydrogen by weight and can store up to 148g/L, twice the density of liquid H₂. However, currently there are no ways to turn the aluminium byproduct back into AlH₃. It also shows promise as an additive to rocket fuel.