... sulphate anhydrous(Glaubers salt) is mainly used in synthetic detergent, vinylon, sodium silicate, bleaching, dyeing, glass, tannage, papermaking, the anticorrosive treatment of ... wt 25kg, 50kg or 1,000kg in PE bag lined plastic woven bag, Kept in dry and ventilating place, avoid moisture and ... .001Moisture %≤0.200.02Whiteness %≥8290 Mineral Na2SO4(SSA) 99%min for detergent and glass