... ash , Edible alkali, Polyaluminium Chloride, Polyacrylamide, Polyaluminium Ferric Chloride ,Polymerization iron sulfate , potassium sulfateand Sodium Tripolyphosphate . And our products mainly export to ... .1 MAX.iron(Fe) , %:0.002 MAX.moisture , %:0.20 MAX.Whiteness, %:86 MIN. ItemValueType IType IIGrade AGrade Asodium sulfate content, Na2SO4 ...