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Molecular formular: ZnO
Molecular weight: 81.39
As white pigment used in printing & dyeing,paper-making , and pharmaceutical industries ; As cure activating ingredient, strengthening agent and colorant of natural rubber and synthetic rubber,also used in the production of zinc
packing and storage:in plastic woven bag lined with plastic film or in water-proof paper bag
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Product Description |
First grade |
Second grade |
Third grade |
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ZnO dry |
99.7min |
99.7min |
99.7min |
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Pb |
0.037max |
0.06max |
0.1max |
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Mn |
0.0001max |
0.0001max |
0.0001max |
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Cu |
0.0002max |
0.0002max |
0.0002max |
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Insoluble in hydrochloric acid |
0.006max |
0.01max |
0.1max |
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Loss on ignition |
0.2max |
0.2max |
0.2max |
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Screen residues(through 45 micron wet screen) |
0.1max |
0.1max |
0.1max |
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volatile( 105 degree Celsius) |
0.3max |
0.3max |
0.3max |
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Rubber-1 |
Rubber-2 |
Paint-1 |
Paint-2 |
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Zinc oxide% |
99.5min. |
99.0min. |
99.5min. |
99.0min. |
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Lead oxide(Pbo)% |
0.12max. |
0.20max. |
- |
- |
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Cadmium oxide (Cdo)% |
0.02max. |
0.05max. |
- |
- |
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Copper Oxide(Cuo)% |
0.006max. |
- |
- |
- |
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Mangaese(Mn) % |
0.0002max. |
- |
- |
- |
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Metallic metals(as Zn) |
None |
None |
None |
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Metallic metals(as Zn) |
None |
None |
None |
None |
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Insolubles in HCL solution % |
0.03max. |
0.04max. |
- |
- |
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Losses on ignition % |
0.4max. |
0.6max. |
0.4max. |
0.6max. |
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Soluble matters in water;% |
0.4max. |
0.6max. |
0.4max. |
0.6max. |
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Screening residues(45µm wet screen)% |
0.28max. |
0.32max. |
0.28max. |
0.32max. |
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105 degree moisture % |
0.4max. |
0.4max |
0.4max |
0.4max |
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Hiding power(g/m2) |
- |
- |
150max |
150max |
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oil absorption,g/ 100g |
- |
- |
18max |
20max |
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Colour killing% |
- |
- |
100max |
95max |
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