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: 50kg, 100kg, and 1000kg quality index product name sodium sulfate sodium sulfate (by na2so4) %> =99.00 calcium magnesium (by mg) content %=88 ph: 6-8