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Germanium Chloride
Germanium chloride may refer to: * Germanium dichloride, germanium(II) chloride, GeCl2 * Germanium tetrachloride Germanium tetrachloride is a colourless, fuming liquid with a peculiar, acidic odour. It is used as an intermediate in the production of purified germanium metal. In recent years, GeCl4 usage has increased substantially due to its use as a reagent ..., germanium(IV) chloride, GeCl4 Germanium compounds {{Chemistry index ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germanium Dichloride
Germanium dichloride is a chemical compound of germanium and chlorine with the formula . It is a yellow solid. Germanium dichloride is an example of a compound featuring germanium in the +2 oxidation state. Preparation Solid germanium dichloride can be produced by comproportionation by passing germanium tetrachloride, , over germanium metal at 300 °C and reduced pressure (0.1 mmHg). : Germanium dichloride is also formed from the decomposition of trichlorogermane, , at 70 °C. Trichlorogermane is generated when germanium reacts with hydrogen chloride. This reaction involves dehydrohalogenation. : Another route to germanium dichloride is the reduction of germanium tetrachloride with hydrogen at 800 °C. : Reactions is hydrolysed to give yellow germanium(II) hydroxide, which on warming gives brown germanium monoxide: : : Alkalizing a solution containing germanium(II) ions: : Germanium oxides and hydroxides are amphoteric. Solutions of in HCl are strongly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germanium Tetrachloride
Germanium tetrachloride is a colourless, fuming liquid with a peculiar, acidic odour. It is used as an intermediate in the production of purified germanium metal. In recent years, GeCl4 usage has increased substantially due to its use as a reagent for fiber optic production. Production Most commercial production of germanium is from treating flue-dusts of zinc- and copper-ore smelters, although a significant source is also found in the ash from the combustion of certain types of coal called vitrain. Germanium tetrachloride is an intermediate for the purification of germanium metal or its oxide, GeO2."Germanium" Mineral Commodity Profile, U.S. Geological Survey, 2005. Germanium tetrachloride can be generated directly from GeO2 (germanium dioxide) by dissolution of the oxide in concentrated hydrochloric acid. The resulting mixture is fractionally distilled to purify and separate the germanium tetrachloride from other products and impurities."The Elements" C. R. Hammond, David R. Lide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
