We offer Germanium ingot, Germanium granule, germanium flake
Grade: 99.999% (5N)

Physical properties
Germanium looks like a metal. It has a bright, shiny, silvery color. But it is brittle and breaks apart rather easily, which metals normally do not do. It has a melting point of 937.4°C (1,719°F) and a boiling point of 2,830°C (5,130°F). It conducts an electric current poorly. Substances of this kind are called semiconductors. Semiconductors conduct an electric current, but not nearly as well as metals like silver, copper, and aluminum.

The ability of semiconductors to conduct electricity depends greatly on the presence of small amounts of impurities. The addition of an impurity to a semiconductor is called doping. Doping a semiconductor has significant effects on its ability to conduct an electric current.

Chemical properties
Germanium is a relatively inactive element. It does not dissolve in water and does not react with oxygen at room temperature. It does dissolve in hot acids and with oxygen at high temperatures, however. It becomes more active when finely divided. It will combine with chlorine and bromine to form germanium chloride (GeCl4) and germanium bromide (GeBr4). For example.