High purity germanium(IV) oxide(Germanium dioxide) powder 99.9999%
| Germanium Dioxide | |
| Molecular formula | GeO2 |
| Molar mass | 104.61 g/mol |
| Appearance | white powder or colourless crystals |
| Density | 3.64 g/cm3 |
| Melting point | 1115°C |
| Boiling point | 1200°C |
| Solubility in water | 5.2 g/l (25 °C) |
High Quality Germanium Dioxide Specification
| Item No. | Chemical Component | |||||||||||||
| GeO2≥% | Foreign Mat. ≤% | |||||||||||||
| As | Fe | Cu | Ni | Pb | Ca | Mg | Si | Co | In | Zn | Al | Total Content | ||
| UMGD5N | 99.999 | 1.0*10-5 | 1.0*10-4 | 1.0*10-4 | 1.0*10-5 | 1.0*10-5 | 1.0*10-4 | 1.0*10-4 | 1.0*10-4 | 1.0*10-5 | 1.0*10-5 | 1.0*10-4 | 1.0*10-4 | 1.0*10-3 |
| UMGD6N | 99.9999 | 1.0*10-5 | 1.0*10-5 | 1.0*10-6 | 1.0*10-6 | 1.0*10-6 | 1.0*10-5 | 1.0*10-5 | 1.0*10-5 | 1.0*10-6 | 1.0*10-6 | 1.0*10-5 | 1.0*10-5 | 1.0*10-4 |
Packing: neutral carton, Specification: Φ34 ×h38cm, with double-layer plastic bag lining , Net wt. 20Kg.
What is Germanium Dioxide used for?
For the refractive index and optical dispersion properties, Germanium dioxide is useful as an optical material for wide-angle lenses and in optical microscope objective lenses.
Mixture of silicon dioxide and germanium dioxide is used as an optical material for optical fibers and optical waveguides.
Germanium dioxide is also used as a catalyst in production of polyethylene terephthalate resin, and for production of other germanium compounds. It is used as a feedstock for production of some phosphors and semiconductor materials.
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