... .:7757-82-6 Used as filler of detergent,papermaking, glass 99%min Glauber salt /Sodium Sulphate Anhydrous Molecular formula: ... -toxic.Use: widely used in vinylon, sodium silicate, bleaching, glass, paper making, tanning, metal smelting, surface treatment and filler ... of detergent, the making of sodium sulphide, water glass, or used in papermaking, glass, dye and used as filler, dyeing auxiliary, ...