| CAS No.: | 1314-13-2 |
|---|---|
| Formula: | ZnO |
| EINECS: | ZnO |
|
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properties:
1. white powder or hexagonal crystal, odourlessness, relative density: 5.606g/cm3, stable nature under normal temperature.
2. insoluble in water and alcohol, soluble in acid, alkali and ammonium hydroxide.
3. Zinc oxide is a kind of white pigment, also called zinc white. When heated, it will turn to yellow, but after cooling down, it still turn back to white.
| Molecular formula | ZnO |
| Molar mass | 81.408 g/mol |
| Appearance | White solid |
| Odor | odorless |
| Density | 5.606 g/cm3 |
| Melting point | 1975 °C (decomposes)[1] |
| Boiling point | 2360 °C |
| Solubility in water | 0.16 mg/100 mL (30 °C) |
| Band gap | 3.3 eV (direct) |
| Refractive index (nD) | 2.0041 |
| Item/Parameter | Standard | |||
| Zinc Oxide % ≥ | ZnO 99.5% | ZnO 99.7% | ZnO 99.8% | ZnO 99.9% |
| Metallic Zinc (in accordance with Zn) % | None | None | None | None |
| Lead oxide (PbO)%≤ | 0.05 | 0.037 | 0.001 | 0.001 |
| Cadmium oxide (CdO) % ≤ | -- | -- | 0.0005 | 0.0005 |
| Cupric oxide (CuO) % ≤ | 0.0004 | 0.0002 | 0.0002 | 0.0002 |
| As ≤ | -- | -- | 0.0005 | 0.0005 |
| Manganese (Mn) % ≤ | 0.0001 | 0.0001 | -- | -- |
| Ferro Oxide (FeO) % ≤ | -- | 0.001 | -- | -- |
| Muriatic Acid Insoluble Substance % ≤ | 0.008 | 0.006 | 0.004 | 0.004 |
| Loss On Ignition % ≤ | 0.2 | 0.2 | -- | -- |
| Water Insoluble Substance % ≤ | 0.2 | 0.1 | -- | -- |
| Volatile 105°C % ≤ | 0.4 | 0.3 | 0.3 | 0.3 |
| Sieve Residue (45um mesh ) % ≤ | 0.1 | 0.1 | 0.1 | 0.1 |
| Surface Area % ≥ | 45 | 50 | 60 | 60 |
| Oil Absorption g/100g ≤ | -- | 14 | -- | -- |
| Reducing Power (compared with standard sample) % ≥ | -- | 100 | -- | -- |
Used as white dyestuff and used in printing & dyeing , paper, match and medicine industry.
Used in rubber industry as vulcanization activator, reinforecement agent and coloring agent of natural rubber, synthetic rubber and latex.
Used in the processing of zinc chrome yellow, zinc acetate, zinc carbonate, zinc chloride, etc.
Used for making electron laser materials, flurescent powder, forage additives, catalysts, magnetic materials.
Packing details:
Storage: Stockpiled at the ventilated place, avoiding rain, moisture and insolation. Please handle with care to prevent bag damage, store away from toxic substances.
Packing: Net 25kg/1000kg in Plastic woven bags with PE lining
Loading: 20MT/20FCL'; 20MT/20FCL' with pallets
Expiration date: For two years
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