Description: Nature: The white slight amorphous powder, not smelly, tasteless. The proportion 4.42-4.45, insoluble in water and mellow, slightly soluble to ammonia, soluble in the diluted acid and the sodium hydroxide.

Use: It can be used not only as lightly astringent , the raw material of latex products, the configuration of calamine and as the skin protectant, , but also as the main rawmaterial of the desulfurizer and katalyst in the rayon, the petroleum, the chemical fertilizer industries as well as the rubber product, the paint, the medicine and otherchemical products .