Properties: white fine crystal or powder, easily soluble in water; absorb moisture; odorless, non-toxic. Chemical Name: Sodium sulphate Anhydrous (Na2SO4) Properties: white fine crystal or powder, easily soluble in water; absorb moisture; odorless, non-toxic. Use: widely used in vinylon, sodium silicate, bleaching, glass, paper making, tanning, metal smelting, surface treatment and filler ...