... alkali. 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, cold ... double-layer packaging 2, the standard package weight: 25kg or 1000kg3, can also be packaged according to user needs ...