Basic zinc carbonate
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Product Description
Product properties
Zinc carbonate is an insoluble source of zinc that can be easily converted to other zinc compounds, such as oxides, by heating (calcining).
Appearance
Basic zinc carbonate white fine amorphous powder, odorless, tasteless. The relative density is 4.42-4.45, insoluble in water and alcohol, slightly soluble in ammonia, soluble in dilute acid and sodium hydroxide, reacts with 30% hydrogen peroxide to release carbon dioxide and form peroxide.
Purpose
Basic zinc carbonate is mainly used as catalyst and desulfurizer, as well as as activator of natural rubber, styrene butadiene rubber, butyl rubber, nitrile rubber, neoprene rubber, ethylene propylene diene monomer and rubber, and is widely used in the manufacture of transparent products.
| Project | Indicators | ||
| Superior product | First class | Qualified product | |
|
Basic zinc carbonate (in Zn) ≥ |
57.5 |
57 |
56.5 |
|
Ignition reduction % ≤ |
25.0~28.0 |
25.0~30.0 |
25.0~32.0 |
|
Pb ≤ |
0. 03 |
0. 05 |
0. 05 |
|
Moisture ≤ |
2.5 |
3.5 |
5 |
|
Sulfate (in terms of SO4) ≤ |
0.6 |
0. 15 |
|
|
Fineness (through 75 μ m test screen) (on dry basis) ≥ |
95 |
94 |
93 |
|
Mass fraction of Cd ≤ |
0.02 |
0.05 |
|
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