zinc carbonate 57%

English name: Zinc Carbonate Molecular Formula: ZnCO3.2Zn(OH)2.H20 Molecular Weight: 342.19 ItemIndexZn dry %≥ 57.0 Loss on ignition 25.0-30.0 Pb %≤ 0.05 Sulphate(SO4) %≤ 0.8 H2O %≤ 3.5 Size(pass through 75 micronscreen) ≤ 94.0 Properties: White or yellowish fine amorphous powder, or crystalline powder . Odorless and tasteless. The proportion is 4.42-4.45. Soluble in acids, alkaline and ammonium salt solutions; insoluble in water. Sp.gr.4.42-4.5; Nontoxic. Uses: Used as a light apocrustic and as raw material for latex products, can prepare calamine and used as a skin protecting agent, may also used in the rayon, petroleum, and chemical fertilizer industries as the main material of the desulfurizer and the catalyst, and . widely used in rubber products, paint, medicine and chemical products.