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While use of germanium itself does not require precautions, some of germanium's artificially produced compounds are quite reactive and present an immediate hazard to human health on exposure. For example, Germanium tetrachloride and germane (GeH 4 ) are a liquid and gas, respectively, that can be very irritating to the eyes, skin, lungs, and ...
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]
Geranium is a genus of 422 species of annual, biennial, and perennial plants that are commonly known as geraniums or cranesbills.They are found throughout the temperate regions of the world and the mountains of the tropics, with the greatest diversity in the eastern part of the Mediterranean region.
Germanium dioxide is used as a colorant in borosilicate glass, used in lampworking. When combined with copper oxide, it provides a more stable red. It gives the glass a very reactive/changeable color, “a wonderful rainbow effect” when combined with silver oxide, that can shift light amber to a somewhat reddish and even deep purple appearance.
Germane is the chemical compound with the formula Ge H 4, and the germanium analogue of methane. It is the simplest germanium hydride and one of the most useful compounds of germanium. Like the related compounds silane and methane, germane is tetrahedral. It burns in air to produce GeO 2 and water. Germane is a group 14 hydride.
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]
In addition to the ability of germanium to exhibit 4, 5 or 6 coordination, the greater length of the Ge–O bond in the {GeO 4} tetrahedral unit compared to Si–O in {SiO 4} and the narrower Ge–O–Ge angle (130°–140°) between corner shared tetrahedra allow for unusual framework structures. [13]
Pages in category "Germanium" The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes. ...