Detail

Zinc Carbonate

 

 

Molecular formula: ZnCO3.2Zn(OH)2.H2

Molecular weight: 324.15 

Properties: White or yellowish fine amorphous powder, smell-less, tasteless. The proportion is 4.42-4.45, does not dissolve in water and alcohol, slightly soluble in ammonia, can dissolve in the diluted acid and the sodium hydroxide.

Use: Used as the light apocrustic and the latex products raw material.Can prepare calamine and sued as the skin protecting agent, also may use in the rayon, petroleum and the chemical fertilizer industries as the main material of the desulfurizer and the catalyst.
On the rubber product, the paint, the medicine and other chemical products, it is also widely applied. 

Package: 25 kg PP woven bags with PE liner, Or 1000kg Jumbo Bags. 

Specification: as per Standard of HG/T2523-93

 

ITEMS

INDEX

High-Class

First-Class

Qualified

Zn, % ≥

57.5

57.0

56.5

Loss on dry, %

25.0-28.0

25.0-30.0

25.0-32.0

Pb content, % ≤

0.04

0.05

0.05

Moisture,% ≤

2.5

3.5

5.0

So4 % ≤

0.60

0.80

-

Fineness through 75 um Screen ,%≥

95.0

94.0

93.0

 


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