Sodium Selenite  FORMULA: Na 2 SeO 3  MOLECULAR WEIGHT: 172.93  CHARACTERISTIC: It is white powder, soluble in water and not soluble in ethanol.  USAGE:     A. Used for feed additives.     B. Used for body health, food additives, pharmacy.     C. Used for glass industry.  PACKING: Net 25kg fiber or iron drum. . PRODUCTS C.A.S. No. FORMULA SPEC. Se Sodium Selenite 10102-18-8 Na 2 SeO 3 98% Min 44.7% Min Sodium Selenite 10102-18-8 Na 2 SeO 3 98.7% Min 45% Min Sodium Selenite 10102-18-8 Na 2 SeO 3 99.8% Min 45.5% Min