Specifications: Aluminium Sulphate15.8%-16.5%(Iron Free) Appearance : Slight Greenish Flakes or Powder Al2O3 %min 15.8 Al2(SO4)3 %min56.5-57.5 Fe2O3 %max 0.50 Insoluble Material (T.S.S) %max 0.15 PH(10% Aqueous solution) min 3.0 Heavy Metals as Pb %max 0.001 AS %max 0.0005 Grain Size (2-15)mm Aluminium Sulphate 15.8%-17.5%(Ironless) Appearance:Granular,Powder,Lump,Crystal Al2O3 %min 16-17.5 Al2(SO4)3 %min 56.5-57.5 Fe2O3 %max 0.005 Insoluble Material (T.S.S) %max 0.05 PH(10% Aqueous Solution) min 3.0 Heavy Metals as Pb %max 0.001 AS %max 0.0005 Grain Size (2-5)mm