The Sodium Sulphate Anhydrous min 99%, White content purity min 88%, Industrial Grade, PH value:6-8 About ... seaside city ,which engages in the manufacturing and marketing of Sodium sulfate , Cryolite , Soda ash , Edible alkali, Polyaluminium ... , Polyacrylamide, Polyaluminium Ferric Chloride ,Polymerization iron sulfate , potassium sulfateand Sodium Tripolyphosphate . And our products mainly export to ...