... Rubber,Food , Chemicals... 4) Packing: 25kg 5) ISO9001 Zinc oxide (ZnO), commonly known as zinc white, is an outcome of zinc ... China national standard (GB/T3185-92) and ISO9001-2008Molecular formula: ZnO Molecular Weight: 81.39 Properties: White or light yellow powder ... user needs 4, pay attention to moisture during storageand transportItemsContentPurity (zno)99.70 min99.50 minMetal (Zn)00PbO %≤0.0370. ...