1) White Dry Powder & Granules 2) Purity:99.7% & 99.5% 3) Use: Industry, Chemicals, Food 4) ... soluble in acid and alkali. Zinc oxide as chemical additives is usually and widely used in plastic, silicate ... materials to work on some relevant products ItemsContentPurity (zno)99.70 min99.50 minMetal (Zn)00PbO %≤ 0.0370. ... , Glass, cement, Food, electronic, Zinc oxide petroleum chemical industry grade