Sodium Selenite ( Na2SeO3 ) CAS No. 10102-18-8 Content: 98% min. Se: 44.7% min. Loss on drying: 1.0% max. Selenate & sulphate: 0.03% max. Water dissolution test: Eligible Pb: 20ppm max. As: 10ppm max. Package: 25KG/fibre drum, inner lined with double plastic bag. Sodium selenite is an antioxidant, preventing damage to important cellular components caused by reactive oxygen species such as free radicals and peroxides. Lack of selenium in animal results white muscle disease, Microvascular disease, Myocardial degeneration, Muscle atrophy, edema, Liver hemorrhage and necrosis, Immune dysfunction etc.