Basic zinc carbonate

Molecular formula: ZnCO3·2Zn(OH)2·H2O

Molecular weight:342.14

Properties:This product is white powder, The chemical composition of basic zinc carbonate. insoluble in water or alcohol, soluble in acids with liberating carbon dioxide and soluble in alkalies.

Uses:It is used in rubber goods(emulsion), medicine, cosmetics etc. And it is also used  as raw materials for catalyst and desulfurizing agents. It has batter desulfurizing rate.



Item

Index/%

High-class products

First-rate product

Qualified product

Basic zinc carbonate(as Zn)(as dry material W/   ≥

57.5

57.0

56.5

Loss on lgnition  W/ 

25.0-28.0

25.0-30.0

24.0-32.0

Heavy metal (calculated as Pb)             

0.03

0.05

0.05

Moisture                                   ≤

2.5

3.5

5.0

Sulfate (SO4) W/                           ≤

0.6

0.8

Pass through 75μm siev(as dry material) ≥

95.0

94.0

93.0

Cadmium (Cd) W/                         ≤

0.02

0.05


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