Sell sodium sulphate anhydrous

Our company is a professional chemical company, is one of the biggest manufacture factory produce caustic soda and calcium carbide in north, have perfect production capacity. Our company is also doing business on other chemical products, such as bitter salt , aluminum sulfate , sodium benzoate , sodium pyrosulfite and sodium sulphate anhydrous. Offer the specification:
Purity 99% Min
Ca,Mg (By Mg) 0.15% Max
Iron(By Fe) 0.002% Max
Chloride(By CI) 0.35% Max
Water Insoluble 0.05% Max
Moisture 0.20% Max
Whiteness 80% Min
PH 6-8,9-11
Residue 10% Max 60 mesh. Packing with 50kg woven bag. Many years of exit experience lets our company have supply material in time, product quality is high, optimum characteristic of price, welcome everyone to contact us.