... in acid and alkali. Zinc oxide as chemical additives is usually and widely used in plastic, silicate products, synthetic rubber, lubricants, paint ... work on some relevant products.“Qing Lian” Brand Zinc Oxide is processed by indirect Process, Powder and Granules.in accordance ... light yellow powder, density 5.606, melting point 1975 °, is an amphoteric oxide, soluble in acid and alkali, insoluble in ...