... Standard: Agriculture Grade, Electron Gra...Purity: 80~99.9%Appearance: White PowderApplication: Used in rubber, enamel, oil ... - Direct Zinc Oxide 95% , 90%~99.5% - Indirect ZnO 99.9%~99.7%, etc. - Feed Grade ZnO 75%~65%, ... etc.Property: White powder, odourless, relative density 5.606, stable under normal temperature. Insoluble in water ... oxide 90% 95%/98%/99%/99.5%/99.7%/99.8% good manufacturer