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Zinc oxide （Rubber grade）
$3.00
Rubber grade zinc oxide is mainly used in the production of radial tires, bias tires, conveyor belts, hose, rubber belt, rubber shoes and latex gloves, . The performance of their products fully comply with the standards of CHina, State Ministry of Chemical Industry and ASTM.
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Standard:GB/T3185-92
| Item | Index | ||
| Model | Top grade | First grade | Qualified product |
| Zinc oxide (as ZnO)%,≥ | 99.7 | 99.5 | 99.4 |
| Metals (as dry)%,≤ | No | No | 0.008 |
| Lead oxide (as Pb)%,≤ | 0.037 | 0.05 | 0.14 |
| Manganese oxide (as Mn)%,≤ | 0.0001 | 0.0001 | 0.0003 |
| Copper oxide (as Cu)%,≤ | 0.0002 | 0.0004 | 0.0007 |
| Insoluble matter in HCl%,≤ | 0.006 | 0.008 | 0.05 |
| Loss on ignition%,≤ | 0.20 | 0.20 | 0.20 |
| Residue on sieve (45um) %,≤ | 0.10 | 0.15 | 0.20 |
| Water soluble matter %,≤ | 0.10 | 0.10 | 0.15 |
| Volatile matter on 105oC%,≤ | 0.3 | 0.4 | 0.5 |
