Aluminium hydride

Aluminium hydride
Names
	Preferred IUPAC name Aluminium hydride
	Systematic IUPAC name Alumane
	Other names Alane; Aluminic hydride; Aluminium(III) hydride; Aluminium trihydride; Trihydridoaluminium;
Identifiers
CAS Number	7784-21-6 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:30136 ;
ChemSpider	13833 ; 17625618 (3H3) ;
ECHA InfoCard	100.029.139
Gmelin Reference	245
PubChem CID	14488; 14399066 (2H3); 16721258 (3H3);
UNII	KZJ3T010RQ ;
CompTox Dashboard (EPA)	DTXSID80895037 ;
	InChI InChI=1S/Al.3H Key: AZDRQVAHHNSJOQ-UHFFFAOYSA-N ; InChI=1S/Al.3H Key: AZDRQVAHHNSJOQ-UHFFFAOYSA-N; InChI=1/Al.3H/rAlH3/h1H3 Key: AZDRQVAHHNSJOQ-FSBNLZEDAV;
	SMILES [AlH3];
Properties
Chemical formula	AlH3
Molar mass	30.006 g·mol−1
Appearance	white crystalline solid, non-volatile, highly polymerized, needle-like crystals
Density	1.477 g/cm3, solid
Melting point	150 °C (302 °F; 423 K) starts decomposing at 105 °C (221 °F)
Solubility in water	reacts
Solubility	soluble in ether ; reacts in ethanol
Thermochemistry
Heat capacity (C)	40.2 J/(mol·K)
Std molar; entropy (S⦵298)	30 J/(mol·K)
Std enthalpy of; formation (ΔfH⦵298)	−11.4 kJ/mol
Gibbs free energy (ΔfG⦵)	46.4 kJ/mol
Related compounds
Other cations	Borane; Gallane; Indigane; Thallane
Related compounds	Lithium aluminium hydride; Diborane; Digallane
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Aluminium hydride (also known as alane and alumane) refers to a collection of inorganic compounds with the formula Al H₃. As a gas, alane is a planar molecule. When generated in ether solutions, it exists as an ether adduct. Solutions of alane polymerizes to a solid, which exists in several crystallographically distinguishable forms.