12. Commercial forms of germanium and derived products
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Metal and alloys
Germanium is marketed as a polycrystalline metal with a purity of 99.9999%, or as a single-crystal metal. Germanium alloys are in limited use, with the exception of alloys with precious metals. Half of all Ge-M systems (where M is a metal) contain intermetallic compounds.
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Germanium compounds
The refined metal is also transformed into germanium compounds.
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Halogenides
GeCl 4 tetrachloride is the base product from which germanes (germanium hydrides) are manufactured for solar cells, and must contain less than 0.5 to 5 ppb for each of the impurities V, Cr, Mn, Fe, Co, Ni, Cu and Zn, and less than 10 ppm of HCl, OH, CH...
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Commercial forms of germanium and derived products
Germanium industries
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