Our company is specialized in sodium sulphate anhydrous,and our factory is located in Tian Quan Country,Sichuan province.our product,"ERLANGSHAN"brand,sodium sulphate anhydrous has superiorities of pureness,colorstandard white,ect.The main characteristic of product is that the content of Nacl is so low that can be under 0.05 percent. To your inqiry,the specification is list as below: Product Description Specifications: 1. Formula: Na2SO4 2. Molecular Weight: One hundred forty two point zero four 3. Characteristics: White crystal, easily dissolvable in water 4. Use as producing materials of: Barium Sulfate, Synthetic Detergent, Glass, Paper, Dye, Leather, Medicament, etc. 5. Measure Standard: The internal standard is formulated by state standard 6. Packing: Polypropylene fabric bag lined with plastic bag 7. Weight: 25Kg, 50Kg, and 1000Kg Quality Index Product Name Sodium Sulfate Sodium Sulfate (By Na2SO4) % > =99.2 Calcium Magnesium (By Mg) Content %< =0.10 Chloride (By Cl) Content %< =0.05 Iron (By Fe) Content %< =0.001 The Content of Substance Insoluble in Water %< =0.02 Moisture Content %< =0.10 White Content Purity>=90 PH: 6-8 The packing is 50kg PPW bag, also 1000kg bag. If you are interested in this item & have some purchasing need, please contact with us. Your co-operation and timely reply will be deeply appreciated! Best regards. Jeffrey Zhu CHENGDU SANLIAN TIANQUAN CHEMICAL INDUSTRY CO., LTD. March 3