Aluminum sulphate Specification of aluminum sulphate Technical name : aluminum sulphate Formula : al2(so4)3.14h2o Molecular wt : 594.35 Appearance : white powder Al2o3 : min 17 % Fe2o3 : 0.02% In-soluble : 0.02% Chloride as cl : 0.03% Arsenic as as : 0.003% Phosphate : not traceable 50kg packing