Germanium Metal
MATERIAL OVERVIEW
Characteristics: Lustrous, hard, grayish-white solid metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Purified germanium is a 'p-type' semiconductor material. Conductivity depends largely on added impurities. Attacked by nitric acid and aqua regia, but stable in water, acids, and alkalies in absence of dissolved oxygen, low toxicity.
Application: Isolated germanium is mainly used as a semiconductor material for transistors. The first generation of semiconductors were based solely on germanium. However, most of today's semiconductor production is based on silicon and germaniums use in electronics are in fibre-optic systems, infrared optics and in solar cell applications..
Germanium and series products from Wuhan Xinrong
| Material name | Purity | size |
| High purity Germanium | 5N-7N | |
| Germanium Ingot | 5N | |
| Germanium powder | 5N | 100,200,325 mesh |
| Germanium Dioxide | 5N-6N |
Germanium shape and purity could be customized by customer request
Packing: After being packed in polyester films, then packed in plastic films or glass tubes in vacuum.
GENERAL PROPERTIES
| Symbol: | Ge |
| Cas: | 7440-56-4 |
| Atomic Number: | 32 |
| Atomic Weight: | 72.59 |
| Density: | 5.323 gm/cc |
| Melting Point: | 937.4 oC |
| Boiling Point: | 2830 oC |
| Thermal Conductivity: | 0.602 W/cm/K @ 302.93 K |
| Electrical Resistivity: | microhm-cm @ 20 oC |
| Electronegativity: | 1.8 Paulings |
| Specific Heat: | 0.077 Cal/g/K @ 25 oC |
| Heat of Vaporization: | 68 K-cal/gm atom at 2830 oC |
| Heat of Fusion: | 8.3 Cal/gm mole |
TYPICAL ANALYSES
Impurities in ppm
| Material / Purity: | 5N+ |
| Si | 0.9 |
| Cu | 0.5 |
