... Ecellent quality and best price! Aluminium sulphate molecular formula:Al2(SO4)3 Purity:Al2O3 15.8% 16% 17% Size : Flake ... ,Granules,Lump,Powder. GOOD priceAL2(SO4)3Molecular Formula:AL2(SO4)3Properties:There are two types, anhydrous aluminium sulphate and ... sulphate octadecahydrate.In normal condition, it is AL2(SO4)3.18H2O; AL2(SO4)3.14H2O after efflorescence, can be white powder ...