... high purity,good colour ,good service and competitive price. SSA CharacterAchromatic colour, hygroscopic property white pellet ... products ,synthetic fibers,leather,nonferrous ,metallurgy,enamel and soap etc. SpecificationsNa2SO4 content (purity) % ≥ 99 Water Insoluble % ≤ 0.05 Iron ... ,storage,transport in chemical products.We hope to build long-term business with you in competitive price and high ...