About the chemical element the plant genus Galium other uses Infobox galliumGallium IPAc en icon ... gallium does not occur in nature, but as the gallium III salt in trace amounts in bauxite and zinc ores. A soft silvery metallic poor metal , elemental gallium is a brittle solid at low temperatures ... s, the major use compound is gallium arsenide used in microwave circuitry and infrared applications. Gallium nitride and indium gallium nitride , minority semiconductor uses, produce blue ... 95 world market for gallium, but new uses in alloys and fuel cell s continue to be discovered. Gallium is not known to be essential in biology, but because of the biological handling of gallium s primary Salt chemistry ionic salt gallium III as though it were Ferric Ferric iron and life iron III , the gallium ... gallium salts are used, or are in development, as both Pharmaceutical drug pharmaceuticals and Radiopharmacology radiopharmaceuticals in medicine. Notable characteristics Elemental gallium is not found in nature, but it is easily obtained by smelting . Very pure gallium metal has a brilliant silvery color and its solid metal fractures Conchoidal fracture conchoid ally like glass . Gallium metal ... is avoided, due to the possibility of container rupture with freezing. Gallium shares the higher density ... . Gallium Liquid metal embrittlement attacks most other metals by diffusion diffusing into their metal crystal structure lattice . Gallium for example diffuses into the grain boundary grain boundaries of Aluminium Al Zinc Zn alloy s ref Cite journal title Grain boundary imaging, gallium diffusion ... Liquid Metal Embrittlement of ASTM A723 Gun Steel by Indium and Gallium author Vigilante, G. N ... 07 07 ref making them very brittle. Also, gallium metal easily alloys with many metals, and was used in small quantities as a plutonium gallium alloy in the plutonium Plutonium pit core s of the Trinity ... point of 302.9146 K 29.7646 C, 85.5763 F is near room temperature. Gallium s melting point mp is one ... more details
saved book title Gallium subtitle An overview cover image Gallium crystals.jpg cover color Gallium An overview Overview Gallium Isotopes Isotopes of gallium Miscellany Category Wikipedia books on chemical elements Category Gallium ... more details
Gallium chloride may refer to Gallium trichloride gallium III chloride digallium hexachloride , GaCl sub 3 sub Gallium dichloride gallium II chloride digallium tetrachloride , GaCl sub 2 sub disambig Category Gallium compounds Category Chlorides ... more details
Gallium is a chemical element. Gallium may also refer to Gallium experiment, a neutrino detection experiment also known as GALLEX Gallium scan or gallium imaging, a method for the detection of infections and cancers Gallium3D , a software library for 3D graphics acceleration See also Category Gallium compounds Galium , a genus of plants disambig ... more details
Chembox ImageFile gallium nitrate.png ImageSize 200px IUPACName Gallium trinitrate OtherNames Gallium III nitrate br Nitric acid, gallium salt Section1 Chembox Identifiers CASNo 69365 72 6 PubChem 61635 SMILES N O O O . N O O O . N O O O . Ga 3 Section2 Chembox Properties Formula Ga NO sub 3 sub sub 3 sub MolarMass Appearance Density MeltingPt BoilingPt Solubility Section3 Chembox Hazards EUClass Hazchem O Hazchem Xi RPhrases R8 R36 37 38 SPhrases S17 S26 Autoignition Gallium nitrate brand name Ganite is the gallium Salt chemistry salt of nitric acid with the chemical formula Ga NO sub 3 sub sub 3 sub . It is a drug used to treat symptomatic hypercalcemia secondary to cancer. It works by preventing the breakdown of bone through the inhibition of osteoclast activity, thus lowering the amount of free calcium in the blood. ref Gallium Nitrate monograph. Lexi Comp Online, Lexi Drugs Online, Lexi Comp Inc. Hudson, OH. Available at http crlonline.com crlonline . Accessed September 13th, 2008. ref ref http www.drugs.com pro ganite.html Ganite at drugs.com ref Gallium nitrate is also used to synthesize other gallium compounds. Preparation Gallium nitrate is commercially available as the hydrate. The nonahydrate may also be prepared by dissolving gallium in nitric acid, followed by recrystallization. ref cite journal last1 Birnara first1 Christiana last2 Kessler first2 Vadim G. last3 Papaefstathiou first3 Giannis S. title Mononuclear gallium III complexes based on salicylaldoximes Synthesis, structure and spectroscopic characterization journal Polyhedron journal Polyhedron volume 28 pages 3291 year 2009 doi 10.1016 j.poly.2009.04.039 ref See also Bone resorption References reflist External links http www.ganite.com Ganite , brand website inorganic compound stub pharmacology stub Gallium compounds Category Gallium compounds Category Nitrates ... more details
A gallium scan or gallium 67 scan also called gallium imaging is a type of nuclear medicine study that uses a radiopharmacology radioactive tracer to obtain images of a specific type of tissue, or disease state of tissue. Gallium salt s like gallium citrate and gallium nitrate are used. The form of salt is not important, since it is the freely dissolved gallium ion Ga sup 3 sup which is active. For these applications, the radionuclide radioactive isotope gallium 67 sup 67 sup Ga , which has a decay half life of 3.26 days, is used. Mechanism The body generally handles Ga sup 3 sup as though it were ferric iron Fe III , and thus the free isotope ion is bound and concentrates in areas of inflammation, such as an infection site, and also areas of rapid cell division. Gallium III Ga sup 3 sup binds ... In the past, the gallium scan was the Gold standard test gold standard for cancer diagnosis and staging, until it was replaced by positron emission tomography using fludeoxyglucose . Gallium imaging ... tissues. Thus, an increased uptake of gallium 67 may indicate a new or old infection, an inflammatory focus from any cause, or a cancerous tumor. It has been suggested that gallium imaging may become ... it as a detection mechanism for infections. For detection of tumor s, especially lymphoma , gallium imaging is still in use, but may be replaced by PET imaging in the future. In infections, the gallium ... infections. In part this is because gallium binds to neutrophil membranes, even after neutrophil ..., and for abdominal and pelvic infections. Both the gallium scan and indium leukocyte imaging ..., while gallium will also localize to other sources of fever, such as chronic infections and tumors ... image information from the gallium scan, and anatomical information from the CT scan. See also Radiology Nuclear Medicine Gallium scan Indium scan References references DEFAULTSORT Gallium Scan Category Radiology Category Medical imaging Category Radiation oncology Category Gallium fa ... more details
There are three sets of gallium halides , the trihalides where gallium has oxidation state 3, the intermediate halides containing gallium in oxidation state s 1, 2 and 3 and some unstable monohalides, where gallium has oxidation state 1. Trihalides All four trihalides are known. They all contain gallium in the 3 oxidation state. Their proper names are gallium III fluoride, gallium III chloride, gallium III bromide and gallium III iodide. Gallium III fluoride GaF sub 3 sub GaF sub 3 sub is a white ... 6 co ordinate gallium atoms with a three dimensional network of GaF sub 6 sub octahedra sharing common corners. Gallium trichloride GaCl sub 3 sub , Gallium tribromide GaBr sub 3 sub and gallium triiodide GaI sub 3 sub These all have lower melting points than GaF sub 3 sub , Gallium trichloride ... all contain dimers with 4 coordinate gallium atoms and 2 bridging halogen atoms. They are all Lewis acid s, forming mainly 4 co ordinate adducts. Gallium trichloride GaCl sub 3 sub is the most ... exist. They contain gallium in oxidation states 1, 2 and 3. Ga sub 3 sub Cl sub 7 sub This compound ... gallium atoms sharing a corner. The compound can be formulated as gallium I heptachlorodigallate ... halides. They contain gallium in oxidation states 1 and 3 and are formulated Ga sup I sup Ga sup III ... to gallium metal and gallium III entities. They are soluble in aromatic solvents, where arene ... ion. With some ligands, L, e.g. dioxane, a neutral complex, Ga sub 2 sub X sub 2 sub L sub 2 sub , with a galliumgallium bond is produced. These compounds have been used as a route into gallium chain ... sub 2 sub I sub 6 sub respectively. Both anions contain a galliumgallium bond where gallium has ... are stable at room temperature. The previously reported GaBr and GaI produced from fusing gallium with the trihalide have been shown to be gallium metal rich Ga sub 2 sub Br sub 3 sub and Ga sub 2 sub ... of HX and molten gallium using a special reactor. They have been isolated by quenching the high ... more details
chembox Name Gallium maltolate ImageFile Gallium maltolate skeletal.svg ImageSize ImageName Gallium maltolate IUPACName Tris 3 hydroxy 2 methyl 4H pyran 4 one gallium Section1 Chembox Identifiers CASNo ... 3D space groups Orthorhombic system Pbca Gallium maltolate is a coordination complex consisting of a trivalent gallium cation coordinated to three maltol ate ligand s. The compound is undergoing ..., T. Godfrey, C. Noll, B. title Chemistry and pharmacokinetics of gallium maltolate, a compound with high oral gallium bioavailability journal Metal Based Drugs year 2000 volume 7 pages 33 48 doi 10.1155 ... 6 pages 259 277 chapter Therapeutic gallium compounds chapterurl http home.earthlink.net alixapharm ... Chitambar, C.R. Purpi, D.P. Woodliff, J. Yang, M. Wereley J.P. title Development of Gallium Compounds for Treatment of Lymphoma Gallium Maltolate, a Novel Hydroxypyrone Gallium Compound, Induces Apoptosis and Circumvents Lymphoma Cell Resistance to Gallium Nitrate journal J. Pharmacol. Exp. Ther ... Chua, M. Z. Bernstein, L.R. Li, R. So, S.K. title Gallium maltolate is a promising chemotherapeutic ... for intravenously administered gallium nitrate. This is probably because gallium absorbed into the body from oral gallium maltolate becomes nearly entirely protein bound, whereas gallium from intravenous gallium nitrate tends to form anionic gallium hydroxide Ga OH sub 4 sub sup sup gallate in the blood ... Gallium maltolate is stable in aqueous solutions between about pH 5 and 8, and it has significant ... activity Gallium maltolate is able to deliver gallium with high oral bioavailability the bioavailability is several times higher than that of gallium salts such as gallium nitrate and gallium trichloride . ref name MBD Gallium is antiproliferative to pathologically proliferating cells, particularly ... required for DNA. Gallium is taken up by the rapidly proliferating cells, but it is not functional ... reproducing cells take up little gallium as is known from gallium scan s , and gallium is not incorporated ... more details
F 1 NFPA R 1 NFPA O W FlashPt 110 C Autoignition Section8 Chembox Related OtherAnions Gallium nitride br Gallium arsenide br Gallium antimonide OtherCations Aluminium phosphide br Indium phosphide Gallium phosphide Gallium Phosphorus , a phosphide of gallium , is a compound semiconductor compound ... n type semiconductor s. Zinc is used as a dopant for the p type semiconductor . Gallium phosphide has ... emitting diodes Gallium phosphide is used in the manufacture of low cost red, orange, and green light ... with gallium arsenide phosphide . Pure GaP LEDs emit green light at a wavelength of 555 nm. Nitrogen doped GaP emits yellow green 565 nm light, zinc oxide doped GaP emits red 700 nm . Gallium phosphide ... on gallium arsenide GaAs . At temperatures above 900 C, gallium phosphide dissociates and the phosphorus ... of the Czochralski process used for silicon wafers. See also Related materials Gallium arsenide Gallium nitride Indium phosphide Alloys Aluminium gallium indium phosphide Indium gallium phosphide Gallium arsenide phosphide External links http www.ioffe.rssi.ru SVA NSM Semicond GaP index.html Ioffe NSM data archive References Reflist Gallium compounds Category Semiconductor materials Category Optical materials Category Gallium compounds Category Phosphides Category III V compounds Category Light emitting diode materials ar de Galliumphosphid fr Phosphure de gallium ... more details
chembox Watchedfields changed verifiedrevid 402136566 ImageFile Gallium trichloride from xtal 2004 3D balls.png ImageSize IUPACName OtherNames Gallium III chloride, Trichlorogallium, Trichlorogallane Section1 ... O Section8 Chembox Related OtherAnions Gallium III fluoride br Gallium III bromide br Gallium III iodide OtherCations Aluminium chloride br Indium III chloride br Thallium III chloride Gallium trichloride is the chemical compound with the formula GaCl sub 3 sub . Solid gallium trichloride exists ... all solvents, which is unusual for a metal halide. It is the main precursor to most derivatives of gallium and a reagent in organic synthesis . ref Yamaguchi, M. Shibasaki, M. Gallium Trichloride in Encyclopedia ... ref As a Lewis acid , GaCl sub 3 sub is milder than aluminium trichloride . Gallium III is easier to reduce than Al III , so the chemistry of reduced gallium compounds is more extensive than for aluminium ... chemistry of Ga III and Fe III are similar, and gallium III compounds have been used as diamagnetic analogues of ferric compounds. Preparation Gallium trichloride can be prepared from the elements, heating gallium metal in a stream of chlorine , and purifying the product by sublimation under vacuum. ref S.C. Wallwork I.J.Worral J.Chem. Soc 1965,1816 ref ref Kovar, R. A. Gallium ... involving two chlorine bridging atoms with the gallium atoms essentially tetrahedrally coordinated by chlorine is surprising, as the chlorides of the two members of group 13 above and below gallium ... lattice forces, gallium trichloride has the lowest melting point of all of the aluminium, gallium and indium trihalides. The formula of Ga sub 2 sub Cl sub 6 sub is often written as Ga .... Complexes Gallium is the lightest member of Group 13 to have a full d shell, gallium has the electronic ... acid base theory allows gallium III to behave as soft acid. The strength of the bonds between gallium halides and ligands have been extensively studied. What emerges is GaCl sub 3 sub is a weaker ... more details
chembox verifiedrevid 396140472 ImageFile Sphalerite unit cell 3D balls.png IUPACName Gallium III antimonide OtherNames Gallium antimonide Section1 Chembox Identifiers ChemSpiderID 3436915 InChI 1 Ga.Sb rGaSb c1 2 InChIKey VTGARNNDLOTBET KXXLTECTAC StdInChI 1S Ga.Sb StdInChIKey VTGARNNDLOTBET UHFFFAOYSA N CASNo Ref cascite 1 ?? CASNo 12064 03 8 PubChem 6335277 SMILES Ga Sb Section2 Chembox Properties Formula GaSb MolarMass 191.483 g mol Appearance Density 5.614 g cm sup 3 sup MeltingPt 712 C BoilingPt Solubility insoluble BandGap 0.726 eV 300 K ElectronMobility 3000 cm sup 2 sup V s 300 K SpecRotation MagSus ThermalConductivity 0.32 W cm K 300 K RefractIndex 3.8 Section3 Chembox Structure MolShape CrystalStruct Sphalerite , Pearson symbol cF8 SpaceGroup F 43m, No. 216 Section7 Chembox Hazards MainHazards NFPA H 1 NFPA F 0 NFPA R 0 NFPA O FlashPt non flammable Autoignition Gallium antimonide GaSb is a semiconductor semiconducting compound of gallium and antimony of the III V family. It has a lattice constant of about 0.61 nanometre nm . Applications GaSb can be used for Infrared detector s, infrared LED s and semiconductor laser lasers and transistors , and thermophotovoltaic systems. See also Aluminium antimonide Indium antimonide Gallium arsenide External links http www.ioffe.rssi.ru SVA NSM Semicond GaSb properties listed at NSM , Ioffe Institute. http www.onr.navy.mil 02 matoc onr docs pa1 pa1 005.doc National Compound Semiconductor Roadmap at the Office of Naval Research Gallium compounds Category Semiconductor materials Category Gallium compounds Category Antimonides Category III V compounds material stub de Galliumantimonid es Antimoniuro de galio it Antimoniuro di gallio pl Antymonek galu ru ... more details
Vanadium gallium V sub 3 sub Ga a superconducting alloy of vanadium and gallium often used for the high field insert coils of Superconducting magnet superconducting electromagnets . Vanadium gallium tape is used in superconductivity superconducting magnets 17.5 tesla unit tesla s or 175,000 Gauss unit gauss . The structure of the superconducting A15 phase of V sub 3 sub Ga is similar to that of the more common Niobium tin Nb sub 3 sub Sn and Niobium titanium Nb sub 3 sub Ti . ref cite journal journal IEEE Transactions on Magnetics volume 13 issue 1 year 1977 pages 35 37 title A 17.5 Tesla superconducting concentric Nb sub 3 sub Sn and V sub 3 sub Ga magnet system last Markiewicz first W. coauthors Mains, E. Vankeuren, R. Wilcox, R. Rosner, C. Inoue, H. Hayashi, C. Tachikawa, K. doi 10.1109 TMAG.1977.1059431 ref The high field characteristics can be improved by doping with high Z elements such as Nb, Ta, Sn, Pt and Pb ref cite url http adsabs.harvard.edu abs 1984mit..reptR....T title Improvement in magnetic field properties of vanadium gallium superconductors by enhancement of spin orbit scattering author Tedrow, P. M. Meservy, R. year 1984 ref Superconducting properties Critical temperature T sub c sub 14.2 Kelvin ref cite url http ieeexplore.ieee.org Xplore login.jsp?url http 3A 2F 2Fieeexplore.ieee.org 2Fiel5 2F4915369 2F5095045 2F05095068.pdf 3Farnumber 3D5095068&authDecision 203 title Magnetization Studies on Superconducting Vanadium Gallium author Decker, D. L. Laquer, H. L. year 1969 doi 10.1063 1.1658081 ref Upper critical field H sub c2 sub Over 19 Tesla. Fabrication of superconductive wires or tapes V3Ga wires can be formed using solid state precipitation ref cite url http www.escholarship.org uc item 995579gc title A15 SUPERCONDUCTORS THROUGH DIRECT SOLID STATE ... File V3GaWire.jpg An example of a wire vanadium V sub 3 sub gallium Ga alloy used in a superconducting ... compounds Category Gallium compounds alloy stub ... more details
chembox verifiedrevid 396142529 Name Gallium nitride ImageFile GaNcrystal.jpg ImageFile2 Wurtzite polyhedra.png IUPACName Gallium nitride OtherNames Name Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 105057 InChI 1 Ga.N rGaN c1 2 SMILES Ga N InChIKey JMASRVWKEDWRBT MDMVGGKAAI StdInChI Ref stdinchicite correct chemspider StdInChI 1S Ga.N StdInChIKey Ref stdinchicite correct chemspider StdInChIKey JMASRVWKEDWRBT UHFFFAOYSA N CASNo 25617 97 4 CASNo Ref ... Non flammable. Section8 Chembox Related OtherAnions Gallium phosphide br Gallium arsenide br Gallium ... OtherCpds Aluminium gallium arsenide br Indium gallium arsenide br Gallium arsenide phosphide br Aluminium gallium nitride br Indium gallium nitride Gallium nitride Gallium Nitrogen is a binary boron ... at much hotter temperatures and work at much higher voltages than gallium arsenide GaAs transistors ... ref Gallium nitride compounds also tend to have a high spatial defect frequency, on the order of a hundred ... than silicon transistors. The first gallium nitride metal oxide semiconductor field effect transistors ... of GaN with indium In indium gallium nitride InGaN or Aluminium Al Aluminium gallium nitride AlGaN ... 10.1038 nature01551 title Single crystal gallium nitride nanotubes volume 422 pmid 12686996 last2 He ..., health and safety aspects of gallium nitride sources such as trimethylgallium and ammonia ... best gallium nitride World s Best Gallium Nitride, IEEE Spectrum, July 2010 http spectrum.ieee.org .... Moustakas, Gallium Nitride GaN II Semiconductors and Semimetals , Academic Press, 1998 ISBN 0 12 752166 ... http physchem.ox.ac.uk MSDS GA gallium nitride.html External MSDS Data Sheet . http www.ioffe.rssi.ru ... gan.asp National Compound Semiconductor Roadmap page at ONR Gallium compounds DEFAULTSORT Gallium Nitride Category Nitrides Category Gallium compounds Category Inorganic compounds Category Compound ... fr Nitrure de gallium it Nitruro di gallio nl Galliumnitride ja pl Azotek galu pt ... more details
chembox verifiedrevid 396142414 ImageFile GaAscrystals.JPG ImageFile1 Gallium arsenide unit cell 3D balls.png IUPACName Gallium arsenide Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct ... 704 NFPA H 3 NFPA F 1 NFPA R 2 NFPA O W Gallium arsenide GaAs is a chemical compound compound of the elements gallium and arsenic . It is a boron group III nitrogen group V semiconductor , and is used .... Preparation and chemistry In the compound, gallium has a 3 oxidation state . Gallium arsenide ... in the Bridgman Stockbarger technique , in which gallium and arsenic vapors react and free molecules ... Press year 2005 isbn 0748775161 ref Chemical vapor deposition VPE reaction of gaseous gallium metal ... MBE of gallium and arsenic 4Ga As sub 4 sub 4GaAs or 2Ga As sub 2 sub 2GaAs Wet etching of GaAs industrially ... M. R. Brozel, G. E. Stillman title Properties of Gallium Arsenide publisher IEEE Inspec year 1996 ... ref Oxidative dissolution of gallium arsenide and separation of gallium from arsenic J. P. Coleman .... The surface can be passivated by depositing a cubic gallium II sulfide layer using a tert butyl gallium sulfide compound such as sup t sup BuGaS sub 7 sub . ref Chemical vapor deposition ... filed for bankruptcy in 1995. Complex layered structures of gallium arsenide in combination with aluminium arsenide AlAs or the alloy Aluminium gallium arsenide Al sub x sub Ga sub 1 x ... cells and detectors Another important application of GaAs is for high efficiency solar cell s. Gallium ... triple junction solar cells based on GaAs with germanium and indium gallium phosphide layers were developed ... 9 issue 9 pages 366 369 doi 10.1103 PhysRevLett.9.366 ref Single crystal s of gallium arsenide ... of gallium arsenide have not been thoroughly investigated. On one hand, due to its arsenic ... environment, health and safety aspects of gallium arsenide sources such as trimethylgallium and arsine ... gallium arsenide as a carcinogen. ref Cite web title Chemicals Listed Effective August 1, 2008 as Known ... more details
Gallium Ga br Standard atomic mass 69.723 1 unified atomic mass unit u Natural gallium consists of a mixture of two stable isotopes gallium 69 and gallium 71. The most commercially important radioisotopes are gallium 67 and gallium 68. Gallium 67 half life 3.3 days is a gamma emitting isotope used in standard nuclear medical imaging, in procedures usually referred to as gallium scan s. It is usually used as the free ion, Ga sup 3 sup . The shorter lived gallium 68 half life 68 minutes is a positron emitting isotope which is generated from germanium 68 in gallium 68 generator s, for use in a small minority of diagnostic PET scan s. For this use, it is usually attached as a tracer to a carrier molecule, which gives the resulting radiopharmaceutical a different tissue uptake specificity from the ionic Ga 67 radioisotope normally used in standard gallium scans. Table class wikitable style font size 95 white space nowrap rowspan 2 nuclide br symbol Z proton p N neutron n br isotopic mass u br rowspan 2 half life rowspan 2 nuclear br spin rowspan 2 representative br isotopic br composition br mole fraction rowspan 2 range of natural br variation br mole fraction colspan 3 excitation energy sup 56 sup Ga style text align right 31 style text align right 25 55.99491 28 3 sup 57 sup Ga style text align right 31 style text align right 26 56.98293 28 1 2 sup 58 sup Ga style text align right 31 style text align right 27 57.97425 23 2 sup 59 sup Ga style text align right 31 style text align right 28 58.96337 18 3 2 sup 60 sup Ga style text align right 31 style text align right ... Isotopes of gallium this article s talk page . cite journal author G. Audi, A. H. Wapstra, C ... CRC Press isbn 978 0849304859 Isotope nav element gallium lighter Isotopes of zinc heavier Isotopes of germanium Category Gallium Category Isotopes of gallium Category Lists of isotopes by element Gallium ca Is tops del gal li ja zh ... more details
Gallium arsenide phosphide Gallium Arsenic sub 1 x sub Phosphorus sub x sub is a semiconductor material , an alloy of gallium arsenide and gallium phosphide . It exists in various composition ratios indicated in its formula by the fraction x . Gallium arsenide phosphide is used for manufacturing red, orange and yellow light emitting diode s. It is often grown on gallium phosphide substrates to form a GaP GaAsP heterostructure . In order to tune its electronic properties, it may be doping semiconductors doped with nitrogen GaAsP N ref Characteristics of Nitrogen Doped GaAsP Light Emitting Diodes, Tadashige Sato and Megumi Imai, Jpn. J. Appl. Phys. vol. 41 pp. 5995 5998 2002 doi 10.1143 JJAP.41.5995 ref . See also Gallium arsenide Gallium phosphide Indium gallium arsenide phosphide Indium gallium phosphide Aluminium gallium arsenide phosphide Gallium indium arsenide antimonide phosphide References references External links Category Semiconductor materials Category Gallium compounds Category Arsenides Category Phosphides Category III V compounds Category Light emitting diode materials condensedmatter stub fr Phospho ars niure de gallium pl Fosforo arsenek galu ... more details
Aluminium gallium phosphide , Al,Ga P, a phosphide of aluminium and gallium , is a semiconductor material . It is an alloy of aluminium phosphide and gallium phosphide . It is used to manufacture light emitting diode s emitting green light. See also Aluminium gallium indium phosphide External links http www.azooptics.com details.asp?ArticleID 34 Light Emitting Diode An Introduction, Structure, and Applications of LEDs Category Aluminium compounds Category Gallium compounds Category Phosphides Category Semiconductor materials Category III V compounds Condensed matter stub ar ... more details
Unreferenced date August 2010 chembox verifiedrevid 400097976 Name Gallium III hydroxide ImageFile ImageSize 200px ImageName Gallium III hydroxide OtherNames Gallium trihydroxide Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 8329553 InChI 1 Ga.3H2O h 3 1H2 q 3 p 3 InChIKey DNUARHPNFXVKEI DFZHHIFOAG SMILES Ga 3 . OH . OH . OH StdInChI Ref stdinchicite correct chemspider StdInChI 1S Ga.3H2O h 3 1H2 q 3 p 3 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey DNUARHPNFXVKEI UHFFFAOYSA K CASNo 12023 99 3 PubChem 10154045 Section2 Chembox Properties Formula Ga OH sub 3 sub MolarMass 120.7437 g mol Density MeltingPt BoilingPt Gallium hydroxide , Ga OH sub 3 sub , is the normal mineral form of gallium in the Earth s crust. Gallium hydroxide is very rarely found as a discrete mineral called s hngeite. More commonly, gallium replaces aluminium in ore s such as bauxite . Rich sources may contain almost 1 Ga replacing Al, but a more typical value is a hundred times less. Gallium hydroxide is amphoteric . In strongly acidic conditions, the gallium ion , Ga sup 3 sup is formed. In strongly basic conditions, Ga OH sub 4 sub sup &minus sup is formed. Salts of Ga OH sub 4 sub sup &minus sup are sometimes called Gallium salt gallate s. References Reflist Gallium compounds DEFAULTSORT Gallium Iii Hydroxide Category Hydroxides Category Gallium compounds inorganic compound stub ar de Galliumhydroxid nl Gallium III hydroxide ja III pt Hidr xido de g lio III zh ... more details
File Sphalerite unit cell depth fade 3D balls.png thumb The crystal structure of aluminium gallium arsenide is Zincblende crystal structure zincblende . Aluminium gallium arsenide also aluminum gallium arsenide Aluminium Al sub x sub gallium Ga sub 1 x sub arsenic As is a semiconductor material with very nearly the same lattice constant as Gallium arsenide GaAs , but a larger bandgap . The x in the formula above is a number between 0 and 1 this indicates an arbitrary alloy between Gallium arsenide GaAs and Aluminium arsenide AlAs . The bandgap varies between 1.42 electron volt eV GaAs and 2.16 eV AlAs . For x 0.4, the direct bandgap bandgap is direct . The formula AlGaAs should be considered an abbreviated form of the above, rather than any particular ratio. Aluminium gallium arsenide is used as a barrier material in GaAs based heterostructure devices. The AlGaAs layer confines the electrons to a gallium arsenide region. An example of such a device is a quantum well infrared photodetector QWIP . It can also be used in 1064 nm Infra red laser diode s. Safety and toxicity aspects The toxicology of AlGaAs has not been fully investigated. The dust is an irritant to skin, eyes and lungs. The environment, health and safety aspects of aluminium gallium arsenide sources such as trimethylgallium and arsine and industrial hygiene monitoring studies of standard MOVPE sources have been reported recently in a review. ref Journal of Crystal Growth 2004 doi 10.1016 j.jcrysgro.2004.09.007 ref References references External links http www.ioffe.ru SVA NSM Semicond AlGaAs index.html Extensive site on the physical properties of aluminium gallium arsenide DEFAULTSORT Aluminium Gallium Arsenide Category Arsenides Category Aluminium compounds Category Gallium compounds Category Semiconductor materials Category III V compounds Category Light emitting diode materials ar de Aluminiumgalliumarsenid es Arseniuro de galio aluminio fr Ars niure de gallium aluminium it Arseniuro ... more details
chembox Name Gallium III selenide ImageFile ImageSize 200px ImageName Gallium III selenide OtherNames gallium triselenide Section1 Chembox Identifiers CASNo 12024 24 7 PubChem 165985 Section2 Chembox Properties Formula Ga sub 2 sub Se sub 3 sub MolarMass 376.33 g mol Appearance reddish black crystals Odor slight garlic odor Density 4.92 g cm sup 3 sup Solubility decomposition MeltingPt 1020 C BoilingPt Section7 Chembox Hazards EUClass not listed NFPA H 3 NFPA R 1 NFPA F 0 Section8 Chembox Related OtherAnions Gallium III oxide , Gallium III sulfide , Gallium tribromide , Gallium III telluride OtherCations Aluminium III selenide , Indium III selenide OtherCpds Gallium monoselenide Gallium III selenide Gallium Ga sub 2 sub Selenium Se sub 3 sub is a chemical compound . It has a defect sphalerite cubic form of ZnS structure. ref Greenwood&Earnshaw ref It is a p type semiconductor ref Temperature dependence of electrical conductivity and Hall effect of Ga sub 2 sub Se sub 3 sub single crystal, A. E. Belal, Dr. H. A. El shaikh, I. A. Ashraf Crystal Research and Technology,30, 1 , 135 139 ref It can be formed by union of the elements. It hydrolyses slowly in water and quickly in mineral acids to form toxic hydrogen selenide gas. The reducing capabilities of the selenide ion make it vulnerable to oxidizing agents. Keep it away from bases. References reflist Gallium compounds DEFAULTSORT Gallium Iii Selenide Category Selenides Category Gallium compounds Category Inorganic compound stubs Category Selenium compounds inorganic compound stub ar ... more details
chembox Name Gallium II telluride ImageFile GaSstructure.jpg ImageName Gallium II telluride OtherNames gallium telluride Section1 Chembox Identifiers CASNo 12024 14 5 Section2 Chembox Properties Formula GaTe MolarMass 197.32 g mol Appearance black pieces Density 5.44 g cm sup 3 sup , solid Solubility MeltingPt 824 C BoilingPt Section3 Chembox Structure CrystalStruct hexagonal, Pearson symbol hP8 SpaceGroup P6 sub 3 sub mmc, No. 194 Section7 Chembox Hazards EUClass not listed NFPA H 4 NFPA R 0 NFPA F 0 Section8 Chembox Related OtherAnions gallium II oxide , gallium II sulfide , gallium monoselenide OtherCations zinc II telluride , germanium II telluride , indium II telluride OtherCpds gallium III telluride Gallium II telluride , GaTe, is a chemical compound of gallium and tellurium . There is research interest in the structure and electronic properties of GaTe because of the possibility that it, or related compounds, may have applications in the electronics industry. Gallium telluride can be made by reacting the elements or by metal organic vapour deposition MOCVD . ref name Gillan Chemical Vapor Deposition of Hexagonal Gallium Selenide and Telluride Films from Cubane Precursors Understanding ..., 1997. ref . GaTe produced from the elements has a monoclinic crystal structure. Each gallium atom is tetrahedrally coordinated by 3 tellurium and one gallium atom. The galliumgallium bond length ... sub 2 sub sup 4 sup 2Te sup 2 nowiki &minus nowiki sup . ref Monotellurure de gallium, GaTe, Julien ... from alkyl gallium telluride cubanes e.g. from t butylGa sub 3 sub Te sub 4 sub . These cubanes ... consists of a cube of eight atoms, four gallium, and four tellurium atoms. Each gallium has an attached t butyl group and three adjacent tellurium atoms and each tellurium has three adjacent gallium ... Greenwood&Earnshaw references Gallium compounds DEFAULTSORT Gallium Ii Telluride Category Tellurides Category Gallium compounds Category Inorganic compound stubs inorganic compound stub ar ... more details
chembox Name Gallium III telluride Reference ref name hand Citation last Lide first David R. author link ... 0594 2 doi oclc pages 4 58 url accessdate ref ImageFile ImageSize ImageName Gallium III telluride OtherNames gallium telluride, gallium sesquitelluride, digallium III trirelluride Section1 Chembox Identifiers ... OtherAnions gallium III oxide , gallium III sulfide , gallium III selenide , gallium triiodide OtherCations aluminium III telluride , indium III telluride OtherCpds gallium II telluride Gallium III telluride Gallium Ga sub 2 sub Tellurium Te sub 3 sub is a chemical compound classified as a metal telluride . At room temperature gallium III telluride is an odorless, black, brittle crystalline solid ... http www.americanelements.com gate3.html American Elements Gallium III Telluride Supplier & Tech Info Bot generated title ref Synthesis Gallium III telluride is most commonly synthesized through .... It is also possible to synthesize the compound by reacting elemental gallium and elemental tellurium at high temperatures. ref The Chemistry of Gallium, N.N. Greenwood, Department of Chemistry ... Gallium III telluride is a black, odorless, brittle crystal. The compound crystallizes in a four coordinate tetrahedral structure. ref http www.webelements.org compounds gallium digallium tritelluride.html WebElements Periodic Table of the Elements Gallium digallium tritelluride Bot generated title ... be worn while handling this compound see toxicity . Gallium III telluride has a melting point of 788 oC to 792 oC and is not soluble in water. ref name espimetals1 http www.espimetals.com msds 27s Gallium 20Telluride 20Ga2Te3.htm ref Chemical Properties Gallium III telluride is stable at room temperature .... Gallium III telluride will over time emit telluride chemistry telluride fumes and it naturally ... of Gallium III telluride have not been thoroughly investigated. However elemental tellurium has ... Gallium III telluride is a p type semiconductor of the III IV type. ref name autogenerated1 ... more details
Indium gallium aluminium nitride InGaAlN is a GaN based compound semiconductor. It is usually prepared by epitaxial growth, such as MOCVD, MBE, PLD, etc. This material is the base for blue LDs and LEDs. inorganic compound stub Category Indium compounds Category Gallium compounds Category Aluminium compounds Category Nitrides ... more details
chembox verifiedrevid 400097807 Name Gallium III bromide ImageFile Gallium bromide 3D balls.png ImageSize 200px ImageName Gallium III bromide OtherNames gallium tribromide Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 75315 InChI 1 3BrH.Ga h3 1H q 3 p 3 InChIKey SRVXDMYFQIODQI DFZHHIFOAJ SMILES Br Ga Br Br StdInChI Ref stdinchicite correct chemspider StdInChI 1S 3BrH.Ga h3 1H q 3 p 3 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey SRVXDMYFQIODQI UHFFFAOYSA K CASNo 13450 88 9 PubChem 83477 Section2 Chembox Properties Formula GaBr sub 3 sub MolarMass 309.435 g mol Appearance white powder Density 3.69 g cm sup 3 sup Solubility soluble MeltingPt 121.5 C BoilingPt 278.8 C Section7 Chembox Hazards EUClass not listed NFPA H 4 NFPA R 0 NFPA F 0 Gallium III bromide Gallium Ga Bromine Br sub 3 sub is a chemical compound . It may be formed by the reaction of gallium metal or gallium III oxide with hydrobromic acid . Another approach is the reaction of gallium with elemental bromine . References Unreferenced date September 2007 references Gallium compounds Category Bromides Category Gallium compounds Category Metal halides Category Inorganic compound stubs inorganic compound stub ar nl Gallium III bromide ... more details
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