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Zinc oxide of indirect method |
Molecular formula:ZnO
Molecular weight:81.38
Properties: this product is white powder, with specific weight of 5.606 and melting point of 1975°C. It is a kind of amphoteric oxide. , dissolving in acid, alkali, ammonium chloride and ammonia water, not dissolving in water and ethyl alcohol, sublimating when heating to 1800°C.
Uses:rubber, ceramics, medicine, paint, printing & dyeing, magnetic, electronics, fodder, picture tube, etc. |
Item |
Index |
Medicine type |
Rubber type |
Coating type |
Super grade |
Top-grade |
First grade |
Top-grade |
First grade |
| Zinc oxide(Zn0 calculating as dry material)%≥ |
99.9 |
99.7 |
99.5 |
99.7 |
99.5 |
| Lead oxide(as Pb)≤% ≤ |
0.025 |
0.037 |
0.05 |
- |
- |
| Manganese's oxide(as Mn )≤ |
0.0001 |
0.0001 |
0.0001 |
- |
- |
| Cupric oxide(as Cu )% ≤ |
0.0002 |
0.0002 |
0.0002 |
- |
- |
| Insoluble matter in Hydrochloric acid % ≤ |
0.004 |
0.006 |
0.008 |
- |
- |
| Loss on ignition% ≤ |
0.15 |
0.2 |
0.2 |
- |
- |
| Residue on 45um sieve% |
0.05 |
0.1 |
0.15 |
0.1 |
0.15 |
| Water-soluble matter% ≤ |
0.05 |
0.1 |
0.1 |
0.1 |
0.1 |
| Volatile matter in 105°C% ≤ |
0.3 |
0.3 |
0.4 |
0.3 |
0.4 |
| Oil absorption g/100g |
14 |
14 |
14 |
- |
- |
| Color (compared with standard sample) |
- |
- |
- |
similar |
similar |
| Decoloration power(compared with standard sample)≥ |
- |
- |
- |
100 |
95 |
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Packing: plastic bag lined woven bag, net wt 25kg
We also offer special specifications to customers with special requirements. |
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