99.99% GeO2 Germanium Dioxide powder
Features
1. Germanium dioxide is a stable, white powder that is most commonly extracted from sphalerite zinc ores and lignite coal fly ash.
2. Germanium concentrates can be treated via a chlorine distillation method that produces germanium tetrachloride (GeCl4).
3. This can then be hydrolyzed to GeO2.
4. This form of germanium dioxide has a hexagonal crystal structure and is soluble in water at a rate of 4.5g per litre (25°C).
Basic Info
1. Item: Germanium 99.999% 5n, germanium oxide powder, germanium dioxide GeO2
2. CAS No.: 1310-53-8
3. Purity: 99.999%
4. Particle Size: 100Mesh(0.15mm), 200Mesh(0.075mm)
5. Testing Method: ICP-MS or GDMS
6. MOQ: 1KG
Specification
| Product Name | Germanium Dioxide |
| Appearance | Sliver White |
| Physical Size | Ingot, Granules, Powder, Pieces |
| Molecular Formula | GeO2 |
| Molecular Weight | 72.6 |
| Melting Point | 937.4 °C |
| Boiling Point | 2830 °C |
| Thermal Conductivity | 0.602 W/cm/K @ 302.93 K |
| Heat of Vaporization | 68 K-cal/gm atom at 2830 oC |
Impurities in ppm
Product: Germanium Dioxide GeO2
Purity: 99.999%
| Elements | Concentration (ppm wt) |
| GeO2% | 99.999min |
| As(ppm) | 0.5max |
| Fe(ppm) | 0.1max |
| Cu(ppm) | 0.2max |
| Ni(ppm) | 0.2max |
| Pb(ppm) | 0.1max |
| Co(ppm) | 0.2max |
| Al(ppm) | 0.1max |
| Total content of impurity | 10max |
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