... detergent, making of sodium sulphide, water glass, or used in papermaking, glass, dye and used as filler, Product Name : Sodium Sulphate ... 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, ...