The Sodium Sulphate Anhydrous min 99%, White content purity min 88%, ... city ,which engages in the manufacturing and marketing of Sodium sulfate , Cryolite , Soda ash , Edible alkali, ... Ferric Chloride ,Polymerization iron sulfate , potassium sulfateand Sodium Tripolyphosphate . And our products mainly export to North ... .00150.008moisture, %<0.100.30whiteness, % min8680 Sodium Sulphate Anhyrous(SSA)99%