... sulfate , Cryolite , Soda ash , Edible alkali, Polyaluminium Chloride, Polyacrylamide, Polyaluminium Ferric Chloride ,Polymerization iron sulfate , potassium sulfateand Sodium Tripolyphosphate ... and technical developers specializing in the research of those chemicals.With the consistent quality ,reliable technical performance and competitive ... (as F) 0.005% Max Trisodium Phosphate99%--Qingdao Chemicals