... beautiful seaside city ,which engages in the manufacturing and marketing of Sodium sulfate , Cryolite , Soda ash , Edible alkali, Polyaluminium ... ,reliable technical performance and competitive price,gains high praise by domestic and international customers. We believe that we can ... content, %<0.00150.008moisture, %<0.100.30whiteness, % min8680 The specification of Sodium Sulphate Anhyrous99%