FORMULA: Na 2 SeO 3 .5H 2 O 　
　MOLECULAR WEIGHT: 262.93
　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.