... white, is an outcome of zinc by oxidation. Insoluble in water, soluble in acid and alkali. Zinc oxide as chemical additives is ... melting point 1975 °, is an amphoteric oxide, soluble in acid and alkali, insoluble in water or ethanol. High temperature, yellow, white, cold recovery ... also be packaged according to user needs ItemsContentPurity (zno)99.70 min99.50 minMetal (Zn)00PbO %≤ 0.0370.05MnO %≤ 0 ...