... alkali, Polyaluminium Chloride, Polyacrylamide, Polyaluminium Ferric Chloride ,Polymerization iron sulfate , potassium sulfateand Sodium Tripolyphosphate . And our products ... 18205329887 Website: http://www.centralqd.comSpecification and details: ITEMSTANDARDsodium sulphate (Na2SO4), %:99.0 MIN.water insolubles , %: ... ), %:0.05 MAX.chlorides(Cl) , %:0.1 MAX.iron(Fe) , %:0.002 MAX.moisture , %:0.20 MAX ...