Molecular Formula: ZnCO3
Properties:
White fine amorphous powder, odorless, tasteless, insoluble in water and alcohols; slightly soluble in amine, diluted acids and sodium hydroxide.
Usage:
1. In agriculture: Used as a trace element fertilizers, feed additives, etc.
2. In industry: Used in making the light astringent, the emulsion product and calamine lotion, and also used as raw material of producing rayon, catalyst, desulfurization of fertilizer industry, etc.
Packing: In woven bag lined with plastic, net wt. 25kgs/bag or 50kgs/bag or in ton bags. Or according to the commodity inspection or foreign requirements to packing for exporting products.
Specification
Index Item |
For
Medical material |
For Feed additive |
For desulfurizer |
For rubber |
Industrial grade |
Main content(as Zn, dry basis)% ≥ |
57~58 |
57~58 |
57~58 |
55~57 |
55~57 |
Losses on ignition %≤ |
25~28 |
25~28 |
25~28 |
25~32 |
28~35 |
Heavy metal(Pb) %,≤ |
0.001~0.01 |
0.001~0.01 |
0.05~0.1 |
0.1~0.2 |
0.2~0.4 |
Cd %, ≤ |
0.001 |
0.001 |
--- |
--- |
--- |
Water %, ≤ |
1.0~2.0 |
1.0~2.0 |
2.0~4.0 |
2.0~4.0 |
3.0~5.0 |
Sulfate(SO42-)%, ≤ |
0.05~0.60 |
0.05~0.60 |
0.60~1.00 |
0.60~1 |
- |
Screening residues(100µm mesh) %, ≤ |
1-3 |
1-3 |
3-5 |
3-5 |
5-8
|
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