1) White Dry Powder & Granules 2) Purity:99.7% & 99.5% 3) Use: Rubber,Food , Chemicals... 4) Packing: 25kg ... /T3185-92) and ISO9001-2008Molecular formula: ZnO Molecular Weight: 81.39 Properties: White or light yellow powder, density 5.606, melting ... : Rubber/tyre, pharmacy, Glass, cement, Food, electronic, Zinc Oxide 99.7% 99.5% (manufature)