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Product Details
Zine Oxide
1. Properties:
Chemical Name: Zinc Oxide
Synonyms: Zinc Oxide Powder, Zinc White, Flowers of Zinc
Molecular Formula: ZnO
Mlolecular Weight: 81.38
Specific Gravity: 5.606(real); 1.2(bulk)
Melting Point: 1976º C
Boiling Point: Sublimation at 1800º C
Heat of Formation: -83.24 Kcal/mol
Free Energy of Formation: -76.08 Kcal/mol
Melting Heat: 4470Kcal/mol
Physical Properties: Yellowish-white or slightly yellow powder
3. Applications: It is most suitable to be used for the manufacture of high grade ceramics, salt-glazed brick, mosaic, porcelain and porcelain enamel ware for sanitation and bath uses. Especially suitable to be used for glaze-making, as flux in glassmaking, also as active agent for rubber production, furthermore, as raw material for the manufacture of black or dark-colored rubber tyre, rubber wire and isolate articales, etc.
4. Packing: In PVC thin-film bag-lined plastic woven bags, net weight 25kg each.
5. Cautions for transportions and storage: Should be stored in a dry place. Don't to let it be rained on and don't get in touch with acid. No presence of acidic vapour in storeroom is allowed.
| Name | Index | ||||
| Type 1 | Type 2 | Type 3 | |||
| High Grade | First Grade | Qualified | |||
| Appearance | Yellowish-white or slightly yellow powder | ||||
| Zinc Oxide(on dry basis) %≥ | 99.7 | 99.5 | 99.0 | 98.0 | 95.0 |
| PbO(as per Pb) %≤ | 0.037 | 0.05 | 0.15 | - | - |
| CdO(as per Cd) %≤ | 0.005 | 0.02 | 0.04 | - | - |
| CuO(as per Cu) %≤ | 0.0002 | 0.006 | - | - | - |
| Oxide of Manganese (as per Mn) %≤ | 0.0003 | 0.0005 | - | - | - |
| Arsenic %≤ | - | - | - | - | - |
| Metallic Matters (as per Zn) %≤ | - | - | 0.008 | - | - |
| Ignition on Decrement %≤ | 0.2 | 0.4 | 0.6 | - | - |
| Hydrochloric acid insolubles %≤ | 0.03 | 0.05 | 0.08 | - | - |
| Water solubles %≤ | 0.1 | 0.4 | 0.7 | 0.7 | - |
| Moisture %≤ | 0.3 | 0.4 | 0.4 | 0.4 | - |
| Residue on sieve 45um (wet sieving) %≤ | 0.1 | 0.28 | 0.35 | 0.5 | - |
| Residue on sieve 154um(dry sieving) %≤ | - | - | - | - | - |
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