Germanium (Ge) Granules
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Introduction
Germanium is lustrous, hard, grayish-white solid metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. The purified germanium is a 'p-type' semiconductor material. The conductivity depends largely on added impurities. It has the same cubic crystal structure as diamond.
It has a high refractive index and is high transparency to infrared radiation. Germanium is a semiconductor and is one of the purest metals on earth (99.99999999999%).
It has a high refractive index and is high transparency to infrared radiation. Germanium is a semiconductor and is one of the purest metals on earth (99.99999999999%).
Chemical Properties of Germanium
Atomic Symbol | Ge |
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Atomic Number | 32 |
Atomic Weight | 72.63 |
Density | 5.323 g/cm3 |
Melting Point: | 937.4℃ |
Boiling Point | 2830℃ |
CAS No. | 7440-56-4 |
EINECS No. | 231-164-3 |
Specifications
Purity | 5N |
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Size | 1-5 mm, 5-10 mm, 10-30 mm |
Packing | 1 kg/Bottle |
Applications:
Germanium (Ge) Granules is used in semiconductor devices, coating, alloys and battery materials
1. Ge is used mainly in three applications: optical fiber, infrared optics, and catalyst in PET synthesis.
2. Optical fiber: In the form of GeCl4, GeO2 is deposited in the core of the fiber. GeO2 has a high refractive index and a low optical dispersion.
3. Infrared optics: Ge is used as lenses or windows. It is used in thermal imaging cameras, hot-spot detection mobile night vision applications.
4. Catalyst: GeO2 is used as a catalyst for the synthesis of polyethylene terephthalate (PET) used to make bottles.
5. Ge is also used electronic applications such as LEDs.
6. A niche application is ultra-high purity single crystal germanium. This is the most pure metal on earth and is used in gamma radiation detectors.
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