... 99.7%, 99.8%, , 98%, 95 Grade Standard: Electron, Rubber, Agriculture, Ceramics, painting, Nano Grade etc.Packing: 25kg or 50 ... soluble in acid, alkaki and amkonium solution.Application: Used in rubber, dope cable, porcelain enamel, oil, pottery and porcelain, glass ... 99.5%ZnO 99%ZnO 98%ZnO 95%ZnO 90%Lead oxide (PbO)% ≤0.120.21.03.04.0Cadmium oxide ... .50.5contact person: Anne zinc oxide 99% for rubber