... -82-6 Used as filler of detergent,papermaking, glass 99%min Glauber salt /Sodium Sulphate Anhydrous Molecular formula: Na2SO4Molecular weight ... , tanning, metal smelting, surface treatment and filler industries.Grade:Industrial grade /Feed gradePacking: 25kg,50kg/bag Appearance: white monoclinic ... ≤0.0020.001Water % ≤0.200.015Whiteness % ≥8287PH6-87 99%min Glauber salt/Sodium sulphate anhydrous/Na2SO4