... ; absorb moisture; odorless, non-toxic. Chemical Name: Sodium sulphate Anhydrous (Na2SO4) Properties: white fine crystal or powder ... ; odorless, non-toxic. Use: widely used in vinylon, sodium silicate, bleaching, glass, paper making, tanning, metal smelting, ... industries. Grade: Class I first quality Packing: 50kg, 25kg plastic bagQuality Standard: GB/T6009-2003 Guideline ItemGuidelineIIIThe best ...