Sodium Sulphate : Sodium Sulphate is used in the paper, glass, textile and dye industries and is also used as a filler in detergents. Origin : Gujarat -India Appearance Off White Powder Assay (Wt %) Min 98.00 Loss On Drying (Wt %) Max 5.0 pH (10% Solution) 7.0 – 8.5 Water Insolubles (%) Max 2.50 Packaging details : As per export standard packing