... papermaking, glass, dye and used as filler, Product Name : Sodium Sulphate , Sodium SulfateMolecular Formula : Na2SO4Molecular Weight : 142.04Packing : In1MT bag ... request.HS NO. : 2833110000Spec: Sodium Sulphate(Na2SO4) 99%MinInsoluble matter in water 0.05% Min.Ca Mg( as Mg) 0. ... .Whiteness 82MinUses: Used as filler of detergent, making of sodium sulphide, water glass, or used in papermaking, glass, ...