... filler of detergent,papermaking, glass 99%min Glauber salt /Sodium Sulphate Anhydrous Molecular formula: Na2SO4Molecular weight: ... non-toxic.Use: widely used in vinylon, sodium silicate, bleaching, glass, paper making, tanning, ... 99.099.2Water insoluble matter % ≤0.050.05Mg % ≤0.150.04Cl % ≤0.350.34Fe % ≤0.0020.001Water % ≤0.200.015Whiteness % ≥8287PH6-87 99%min Glauber salt/Sodium sulphate anhydrous ...