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| Indirect method Zinc oxide |
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Molecular formula:ZnO Molecular weight:81.39
Properties: white powder,specific gravity :5.606 melting point 1975¡ãC
Uses: used in rubber,ceramic,medicine,paint,printing,magnetic material,electron,feedstuff and kinescope
Standard: GB/T3185-92
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| Item |
Index |
| BA01-05(I) |
BA01-05(II) |
| Premium grade |
First grade |
Salable product |
Premium grade |
First grade |
Salable product |
| Zinc oxide(dry)% ¡Ý |
99.70 |
99.50 |
99.40 |
99.70 |
99.50 |
99.40 |
| Metal (Zn)% ¡Ü |
NA |
NA |
0.008 |
NA |
NA |
0.008 |
| Lead oxide(Pb)% ¡Ü |
0.037 |
0.05 |
0.14 |
- |
- |
- |
| Manganese oxide(Mn)¡Ü |
0.0001 |
0.0001 |
0.0003 |
- |
- |
- |
| copper oxide (Cu)% ¡Ü |
0.0002 |
0.0004 |
0.0007 |
- |
- |
- |
| Insoluble matter in HCl% ¡Ü |
0.006 |
0.008 |
0.05 |
- |
- |
- |
| Loss on ignition% ¡Ü |
0.2 |
0.2 |
0.2 |
- |
- |
- |
| Residue on screen (45um net)% ¡Ü |
0.1 |
0.15 |
0.2 |
0.1 |
0.15 |
0.2 |
| Water soluble matter% ¡Ü |
0.1 |
0.1 |
0.15 |
0.1 |
0.1 |
0.15 |
| Volatile matter in 105¡ãC % ¡Ü |
0.3 |
0.4 |
0.5 |
0.3 |
0.4 |
0.5 |
| Oil absorption g/100g¡Ü |
- |
- |
- |
14 |
14 |
14 |
| Color(Compared with standard ) |
- |
- |
- |
Similar |
slight |
a bit |
| Reducing power (Compared with standard )¡Ý |
- |
- |
- |
100 |
95 |
90 |
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