| CAS No.: | 1314-13-2 |
|---|---|
| Formula: | ZnO |
| EINECS: | 215-222-5 |
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| 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 | -- | -- |
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