Description: Name: Sodium sulfate Molecular formula: Na2SO4 CAS NO: 7757-82-6 Molecular weight : 142.04 Properties : White powder or crystal , melting point is 884 Centigrade , soluble in water , Specification: Na2SO4: 99% min. Ca and Mg (Mg): 0.15% max. Fe: 0.002% max. Moisture: 0.2% max. Water insoluble: 0.05% max. White degree: 80 min. Application: Used in dyestuff industry, glass and paper-making industry , dyeing , leather , medicine ,chemical industry and detergent materials. Packing: 25 kgs /pp bag Storage: Avoid moisture