... 1mt/b Standard:GB6009-2003 1 Sort 1 Grade Sodium sulphate anhydrous(Glaubers salt) is mainly used in ... synthetic detergent, vinylon, sodium silicate, bleaching, dyeing, glass, tannage, papermaking, ... mix with food, coal and cement. If fire, fight with fire extinguisher.Inspection report : Name Sodium sulphate anhydrous( ... %≤0.200.02Whiteness %≥8290 sodium sulphate anhydrous 99%min