... of detergent, making of sodium sulphide, water glass, or used in papermaking, glass, dye and used as filler, Product Name : Sodium Sulphate , Sodium ... as per the customers' request.HS NO. : 2833110000Spec: Sodium Sulphate(Na2SO4) 99%MinInsoluble matter in water 0.05% Min ... 0.20% Max.Whiteness 82MinUses: Used as filler of detergent, making of sodium sulphide, water glass, or used in papermaking, glass ...