... formula:Al2(SO4)3 2.Purity:Al2O3 15.8% 16% 17% 3Size : Flake ,Granules,Lump,Powder. 4.Good quality ,best ... price Aluminum Sulfate 1.Characters:content: 15.8%,16%,17%cas no:10043-01-3white falkes,or powderMolecular Formula:AL2 ... Sulphate 15.8%Aluminum Sulphate 16%Aluminum Sulphate 17%AL2O3>15.8%>16%>17%Fe<0.5%<0.005%<0.005%PH ... or depend on your requirement11.contact us : Aluminum sulfate 17%