Germanium, atomic no.: 32, symbol as Ge, weight at 72.64, is a gray-white metalloid, and in its pure state is crystalline and brittle, retaining its lustre in air at room temperature. It is a very important semiconductor material. Zone-refining techniques have led to production of crystalline germanium for semiconductor use with extremely high purities. .
Germanium is available through the treatment of germanium dioxide, GeO2, with carbon or hydrogen. The extraction of germanium from flue dust is complex because of the difficulty in separating it from zinc, which is also present. GeO2 + 2C → Ge + 2CO?? GeO2 + 2H2 → Ge + 2H2O? Very pure germanium can be made by the reaction of GeCl4 with hydrogen. GeCl4 + 2H2 → Ge + 4HCl
Products available
Product Name
Formula
Grade
Description
Applications
Germanium Metal
Ge
99.999%
gray-white
semiconductor; phosphor; alloy
Germanium Dioxide
GeO2
99.999%
white powder
Glass; optic; ceramic
Standard Specifications
Germanium Metal is used as a transistor element in thousands of electronic applications, when germanium is doped with arsenic, gallium, or other elements. The most common use of germanium is as a semiconductor.
Germanium is also finding many other applications including use as an alloying agent, as a phosphor in fluorescent lamps, and as a catalyst. Germanium and germanium oxide are transparent to the infrared and are used in infrared spectroscopes and other optical equipment, including extremely sensitive infrared detectors The high refractive index and dispersion properties of its oxide's have made germanium useful as a component of wide-angle camera lenses and microscope objectives.
Code
Ge
As
Fe
Cu
Ni
Pb
Co
Al
(%) min.
(ppm) max.
Ge-5N
99.999
0.50
1.00
0.20
0.20
0.10
0.20
1.00
Germanium Dioxide is wildly used in chemical catalyst and raw material for industrial, PET resins and other electronic devices.
Code
GeO2
As
Fe
Cu
Ni
Pb
Co
Al
(%) min.
(ppm) max.
GeO-5N
99.999
0.50
1.00
0.20
0.20
0.10
0.20
1.00
32
Ge
72.64
The standard specifications are only for reference, customers’ specification are welcomed. More detailed information including price, packing, MSDS sheet and lead time are all ready on request, please just leave
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Minor Metals
