Chemical name: Anhydrous sodium sulphate (anhydrous sodium sulphate Na2SO4) Properties: white particle crystal or powder, odorless and non-toxic Uses: anhydrous sodium sulphate can be used in vinylon, alkali , bleaching and dyeing , detergent ,glass,papermaking, leather, anti-corrasio , metallurgy, surface treatment andd filling. Grade: type first grade Quality standard: GB/T6009-2003