Sodium selenite CAS 10102-18-8 Appearance: white crystalline powder /no odor Purity: 98%, Se: 44.7%min Quantity: food /feed /pharma grade Conforms to USP 29 / NF24 food grade/ BP 2002 Packing size: 25kg/ drum Usage: A. used for feed additives. B. used for body health, food additives, pharmacy. C. used for glass industry. If you are interested in our products, pls contact me by email of onicon88 (a) hotmail dot com.