... .CAS No.:1314-13-2 4.Grade :99.0%,99.5%,99.7%,99.8% Zinc Oxide 99.5% Specifications : NO.ItemUnitIndex1Zinc oxide ZnO(dry ... )%≥99.72Lead oxide (Pb)%≤0.003-0.00053Oxide of ... , phosphor, catalysts, manufacture of magnetic materials etc..An Zinc Oxide 99.5%