Germanium Metal Powder – 101




Formula 32Ge72.61
Purity 99.999 %
Particle Size -325 mesh
CAS 7440-56-4
Melting Point 937.4 °C
Boiling Point 2830 °C
Density 5.32 G/Cm³
Coeff. of Expansion @ 20ºC 6.1 x 10-8
Electric Resistivity 47 x 10-6 Microhm-Cm
Crystal Structure Diamond
Applications Electronics
Typical Analysis Germanium-Metal-Powder-101-Typical-Analysis
Form Powder

Cost Per Kilogram

1-2 KG
3-10 KG
11-25 KG
26+ KG
Background Germanium is a silver-white, lustrous, hard metalloid. Germanium is chemically similar to tin.
Chromatography A major use for germanium is for the replacement of silica in chromatography. It is compatible with the silica network present when in the silica stationary phase.
Infrared Germanium has a small band gap, which lets it respond to infrared light. It is used in spectroscopes and other equipment that uses sensitive infrared detectors. It is especially useful in wide angle and microscope lenses. It can be cut and polished for many infrared uses.