99% industrial use sodium sulfate 1) 25kg/bag or 50kg/bag, ... 11 and 6-8 99% industrial use sodium sulfate1. SpecificationChemical name: Sodium sulfate, anhydrousMolecular formula: Na2SO4Purity: 99% minCAS No .: ... , avoid mixed reserve.3. UsageMainly used formaking the sodium silicate, glass, ceramic glaze, pulpmaking cooling mixture, ... ACl % ≤0.19Whiteness ≥88 99% industrial use sodium sulfate