Zinc Carbonate 50%
|
Item analysis
|
Quality Index
|
Result
|
|
Zn content % ≥
|
50 .0
|
50
|
|
Loss on ignition
|
25.0-34.0
|
34.0
|
|
Heavy metal content (Pb) % ≤
|
0.01
|
0.01
|
|
Moisture ≤
|
6
|
6
|
|
Sieve Residue ( 75 microns mesh) ≥
|
91.0
|
91
|
zinc carbonate 55%
|
Item analysis
|
Quality Index
|
Result
|
|
Zn % ≥
|
55.0Min
|
55.2
|
|
Loss on dry
|
25.0-30.0
|
26
|
|
Pb content % ≤
|
0.05
|
0.01
|
|
Moisture ≤
|
3.5
|
2.2
|
|
So4 % ≤
|
0.080
|
0.67
|
|
Fineness through 75 um Screen ≥
|
94.0
|
98
|
zinc carbonate 57%
|
Item analysis
|
Quality Index
|
Result
|
|
Appearance
|
White powder
|
PASS
|
|
Zn % ≥
|
57.0
|
57.3
|
|
Loss on dry
|
25.0-30.0
|
26.6
|
|
Pb content % ≤
|
0.05
|
0.03
|
|
Moisture ≤
|
3.5
|
2.4
|
|
So4 % ≤
|
0.80
|
0.55
|
|
Fineness through 75 um Screen ≥
|
94.0
|
98
|
Physical Properties
Zinc carbonate, basic white fine amorphous powder. Odorless, tasteless. The relative density of 4.42-4.45. Do not dissolve in water and alcohol. Slightly soluble in ammonia. Can be soluble in dilute acid and sodium hydroxide. With 30% hydrogen peroxide effect, release carbon dioxide, the formation of peroxides.
Uses
Zinc carbonate, basic used as a light astringent and latex products raw materials. For the preparation of calamine lotion, used as a skin protective agent, can also be used in the production of artificial silk and catalytic desulfurization agent
it is widely used in Oil and Drilling fields