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