SGS Certified 99% Purity Zinc Oxide Powder
Basic Info.
Product Description
Zinc Oxide(direct 99.5%) is made by advanced process. the product is white powder,stability in
room temperature,good hinding power and tint reducing power. It is used in producing rubber,
coating,cable,enamel,oil,ceramics,glass and other chemical industries.
2. Zinc Oxide Specitification:
|
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 | -- | -- |
3. Zinc Oxide Application
1. Used as reinforcing agent and active agent in rubber or cable industry
2. Used as colorant and filler for white glue
3. Used as vulcanizing agent in chloroprene rubber, etc.
4, Feed gas for desulfurization in the fertilizer industry
5. Used as white pigments, rubber vulcanization active agents, organic synthesis catalysts,
desulfurizers in electrophotographic, pharmaceuticals, etc.
6. Used as a filler for paints and rubbers in paints
7. Used as medicines to make ointments, zinc pastes, and adhesive plasters
8. Used as zinc supplements in feed processing.
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