... No .: 7757-82-6EINECS No: 231-820-9 Properties: white fine crystal or powder, easily soluble in water; absorb ... Grade:Industrial grade /Feed gradePacking: 25kg,50kg/bag Appearance: white monoclinic crystal or powder.Storage: Stored in a cool, ... be used in fiber, lether, metallurgy, enamel and soap.CERTIFICATE OF ANALYSIS Analytical ItemsIndex for I Type First ClassTesting resultNa2SO4 % ≥99. ...