Aluminum Nitride

Name:
Aluminum Nitride
Detailed information:

M Formula:	AlN
Properties:
Crystalline solid. D 3.10, mp 2150C (4.3 atm), Mohs hardness 9+, decomposes when wet into aluminum hydroxide and ammonia.
Derivation:
From coal and bauxite when heated in a stream of nitrogen.
Use:
As semiconductor in electronics; nitriding of steel.