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7440-56-4
Ge
3200PC
99.9990%
≤3.2mm
231-164-3
Class 4.1
UN3089
PG II
Characteristic
Germanium is a chemical element with the symbol Ge and atomic number 32. It is a lustrous, hard-brittle, grayish-white metalloid in the carbon group, chemically similar to its group neighbours silicon and tin. Pure germanium is a semiconductor with an appearance similar to elemental silicon. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature.
Phase at STP:solid
Appearance:grayish-white
Melting point:1211.40 K (938.25 °C, 1720.85 °F)
Boiling point:3106 K (2833 °C, 5131 °F)
Density (near r.t.):5.323 g/cm3
when liquid (at m.p.):5.60 g/cm3
Heat of fusion:36.94 kJ/mol
Heat of vaporization:334 kJ/mol
Molar heat capacity:23.222 J/(mol·K)
Application
Germanium is an excellent semiconductor, which can be used for detecting high frequency current and rectifying alternating current.Germanium compounds can be used to make fluorescent plates and various kinds of glass with high refractive index.
Characteristic
Germanium is a chemical element with the symbol Ge and atomic number 32. It is a lustrous, hard-brittle, grayish-white metalloid in the carbon group, chemically similar to its group neighbours silicon and tin. Pure germanium is a semiconductor with an appearance similar to elemental silicon. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature.
Phase at STP:solid
Appearance:grayish-white
Melting point:1211.40 K (938.25 °C, 1720.85 °F)
Boiling point:3106 K (2833 °C, 5131 °F)
Density (near r.t.):5.323 g/cm3
when liquid (at m.p.):5.60 g/cm3
Heat of fusion:36.94 kJ/mol
Heat of vaporization:334 kJ/mol
Molar heat capacity:23.222 J/(mol·K)
Application
Germanium is an excellent semiconductor, which can be used for detecting high frequency current and rectifying alternating current.Germanium compounds can be used to make fluorescent plates and various kinds of glass with high refractive index.
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