... 5) ISO9001 Zinc oxide (ZnO), commonly known as zinc white, is an outcome of zinc by oxidation. Insoluble in water, soluble in ... . Zinc oxide as chemical additives is usually and widely used in plastic, silicate products, synthetic rubber, lubricants, paint, medicines, ... point 1975 °, is an amphoteric oxide, soluble in acid and alkali, insoluble in water or ethanol. High temperature, yellow, white, ...