1) White Dry Powder & Granules 2) Purity:99.7% & 99.5% 3) Use: Rubber,Food , Chemicals... 4) Packing: 25kg ... also make wide applications in the field of liquid crystal display in the semiconductor, thin film transistors and light diodes . In ... : Rubber/tyre, pharmacy, Glass, cement, Food, electronic, Zinc Oxide 99.7% 99.5% (manufature)