Real, long lived, electronically neutral reagent chemical.
Gram formula weight (molecular mass) = 342.15
Melting point = 770 °C
Density = 2.71 g/cm3
Purity = 99.99 %
Solubility in organics = insoluble
Hygroscopic. Solubility critically dependent upon pH and other factors as the hydroxide, Al(OH)3, and oxide are very insoluble. Material is used in the treatment of domestic water.