... Aluminum sulfate 1.Characters:content: 15.8%,16%,17%cas no:10043-01-3white falkes,or powderMolecular Formula:AL2(SO4 ... octadecahydrate.In normal condition, it is AL2(SO4)3.18H2O; AL2(SO4)3.14H2O after efflorescence, can be white powder ... Aluminum Sulphate 17%AL2O3>15.8%>16%>17%Fe<0.5%<0.005%<0.005%PH Values>3.0>3.0>3 ... , and prevent the rain, prevent pollution.3, Not with toxic or harmful items must ...