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Germanium supplements, made from both organic and inorganic germanium, have been marketed as an alternative medicine capable of treating leukemia and lung cancer. [29] There is, however, no medical evidence of benefit; some evidence suggests that such supplements are actively harmful. [ 99 ]
Propagermanium , also known by a variety of other names including bis(2-carboxyethylgermanium) sesquioxide and 2-carboxyethylgermasesquioxane, is an organometallic compound of germanium [2] that is sold as an alternative medicine. It is a polymeric compound with the formula ((HOOCCH 2 CH 2 Ge) 2 O 3) n.
Organogermanium compounds are used in relatively few commercial applications. Isobutylgermane, a volatile colorless liquid, is used in MOVPE (Metalorganic Vapor Phase Epitaxy) in the deposition of Ge semiconductor films. Propagermanium, also known as Ge-132, and spirogermanium are drugs. [citation needed]
Two oxides of germanium are known: germanium dioxide (GeO 2, germania) and germanium monoxide, (GeO). [4] The dioxide, GeO 2 can be obtained by roasting germanium disulfide (GeS 2) or by allowing elemental germanium to slowly oxidze in air, [5] and is a white powder that is only slightly soluble in water but reacts with alkalis to form germanates. [4]
Gallium and germanium are used in semiconductors, while germanium is also used in infrared technology, fibre optic cables and solar cells. Antimony is used in bullets and other weaponry, while ...
The parent isotope germanium-68 is the longest-lived (271 days) of the radioisotopes of germanium. It has been produced by several methods. [1] In the U.S., it is primarily produced in proton accelerators: At Los Alamos National Laboratory, it may be separated out as a product of proton capture, after proton irradiation of Nb-encapsulated gallium metal. [2]
The shorter-lived gallium-68 (half-life 68 minutes) is a positron-emitting isotope generated in very small quantities from germanium-68 in gallium-68 generators or in much greater quantities by proton bombardment of 68 Zn in low-energy medical cyclotrons, [4] [5] for use in a small minority of diagnostic PET scans.
Germanium dioxide is also used as a catalyst in production of polyethylene terephthalate resin, [13] and for production of other germanium compounds. It is used as a feedstock for production of some phosphors and semiconductor materials. Germanium dioxide is used in algaculture as an inhibitor of unwanted diatom growth in algal cultures