... making of sodium sulphide, water glass, or used in papermaking, glass, dye and used as filler, Product Name : Sodium Sulphate , Sodium ... .002% Max.Moisture 0.20% Max.Whiteness 82MinUses: Used as filler of detergent, making of sodium sulphide, water glass, ... or used in papermaking, glass, dye and used as filler, dyeing auxiliary, laxative, antidote, also can ...