Germanium Dioxide, also called Germanium Oxide and Germania, is an inorganic compound, an oxide of germanium. It forms as a passivation layer on pure germanium in contact with atmospheric oxygen.
| 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
|
|
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 ("silica-germania") 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.
Subscribe to our weekly newsletter and receive exclusive offers on products you love!
X
Gold Supplier
