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| Direct method Zinc oxide |
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Molecular formula:ZnO Molecular weight :81.37
Properties: white powder
Uses: used as catalyst of rubber goods, paint, enamel and glass, or used as material of cosmetics and zinc salt. Low grade product can be used in ceramics and lithopone
Direct method Zinc oxide:GB/T3494-96
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| Index/Brand |
Rubber |
Rubber |
| ZnO¡Á1 |
ZnO¡Á2 |
ZnO¡ÁT1 |
ZnO¡ÁT2 |
ZnO¡ÁT3 |
| Zinc oxide(dry)% ¡Ý |
99.5 |
99.0 |
99.5 |
99.0 |
98.0 |
| (CuO)% ¡Ü |
0.06 |
- |
- |
- |
- |
| (CdO)% ¡Ü |
0.02 |
0.05 |
- |
- |
- |
| Lead oxide (PbO)% ¡Ü |
0.12 |
0.2 |
- |
- |
- |
| Mn% ¡Ü |
0.0002 |
- |
- |
- |
- |
| Insoluble matter in HCl |
0.02 |
0.03 |
- |
- |
- |
| Loss on ignition% ¡Ü |
0.4 |
0.6 |
- |
- |
- |
| Metallic zinc% ¡Ü |
NA |
NA |
NA |
- |
- |
| Hiding force (g/m2)% ¡Ü |
- |
- |
150 |
150 |
150 |
| Residue on screen(320mesh,wet)% ¡Ü |
0.28 |
0.35 |
0.28 |
0.35 |
0.35 |
| Water soluble matter% ¡Ü |
0.4 |
0.7 |
0.4 |
0.7 |
1.0 |
| Moisture% ¡Ü |
0.4 |
0.7 |
0.4 |
0.4 |
0.4 |
| Oil absorption% ¡Ü |
- |
- |
18 |
20 |
20 |
| Reducing power% ¡Ý |
- |
- |
100 |
95 |
95 |
| Color(compared with standard) |
- |
complied with standard |
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