Infobox vanadiumVanadium IPAc en icon v n e d i m respell v NAY dee m is a chemical element ... combined form in nature. Andr s Manuel del R o discovered vanadium in 1801 by analyzing a new ... in 1831 by Nils Gabriel Sefstr m , who named it vanadium after the Scandinavian goddess ... in vanadium compounds. Del Rio s lead mineral was later renamed vanadinite for its vanadium content ... alloy s such as High speed steel high speed tool steels . The most important industrial vanadium compound, Vanadium V oxide vanadium pentoxide , is used as a catalyst for the production of sulfuric acid . Large amounts of vanadium ions are found in a few organisms, possibly as a toxin. The oxide and some other salts of vanadium have moderate toxicity. Particularly in the ocean, vanadium is used by some life forms as an active center of enzymes, such as the vanadium bromoperoxidase of some ocean algae. Vanadium is probably a micronutrient in mammals, including humans, but its precise role in this regard is unknown. History Vanadium was originally discovery of the chemical elements discovered ... had not been assigned to any element yet. He called the element vanadium after Old Norse Vanad s .... ref name sefs In 1831, the geologist George William Featherstonhaugh suggested that vanadium should ... year 1831 page 69 ref File 1910Ford T.jpg thumb left The Model T made use of vanadium steel in its chassis . The isolation of vanadium metal proved difficult. In 1831, J ns Jakob Berzelius Berzelius ... produced the nitride, vanadium nitride VN . Roscoe eventually produced the metal in 1867 by reduction of vanadium II chloride , VCl sub 2 sub , with hydrogen . ref name Roscoe cite journal title Researches on Vanadium. Part II. author Roscoe, Henry E. journal Proceedings of the Royal Society of London volume 18 page 37 year 1869 1870 doi 10.1098 rspl.1869.0012 ref In 1927, pure vanadium was produced by reducing vanadium pentoxide with calcium . ref name Marden cite journal title Vanadium first ... more details
Vanadium chloride may refer to Vanadium II chloride Vanadium III chloride Vanadium IV chloride Vanadium V chloride behaves like niobium or tantalum V chloride, presumably disambig de Vanadiumchlorid ... more details
saved book title Vanadium subtitle An overview cover image Vanadium etched.jpg cover color Vanadium An overview Overview Vanadium Isotopes Isotopes of vanadium Miscellany Panchromium Category Wikipedia books on chemical elements Category Vanadium ... more details
Vanadium oxide may refer to Vanadium II oxide vanadium monoxide , VO Vanadium III oxide vanadium sesquioxide or trioxide , V sub 2 sub O sub 3 sub Vanadium IV oxide vanadium dioxide , VO sub 2 sub Vanadium V oxide vanadium pentoxide , V sub 2 sub O sub 5 sub In addition to these principal oxides of vanadium, various other distinct phases exist Phases with the general formula V sub n sub O sub 2n 1 sub exist between V sub 2 sub O sub 5 sub and VO sub 2 sub . Examples of these phases include V sub 3 sub O sub 7 sub , V sub 4 sub O sub 9 sub and V sub 6 sub O sub 13 sub . ref name Wells Wells5th ref Phases with the general formula V sub n sub O sub 2n 1 sub exist between VO sub 2 sub and V sub 2 sub O sub 3 sub . ref name Wells Called Magn li phases for http www.iucr.org iucr top people magneli.htm Arne Magn li ref name Greenwood Greenwood&Earnshaw ref , they are examples of crystallographic shear compounds based on the rutile crystal structure structure . ref name Wells Examples of Magn li phases include V sub 4 sub O sub 7 sub , V sub 5 sub O sub 9 sub , V sub 6 sub O sub 11 sub , V sub 7 sub O sub 13 sub and V sub 8 sub O sub 15 sub . Many vanadium oxygen phases are non stoichiometric compound non stoichiometric . ref name Greenwood References references disambig ... more details
chembox verifiedrevid 300191651 Name Vanadium carbide Reference ref name hand Citation last Lide first David R. year 1998 title Handbook of Chemistry and Physics edition 87 publication place Boca Raton, FL publisher CRC Press isbn 0 8493 0594 2 pages 4 93 ref ImageFile NaCl polyhedra.png ImageName Vanadium carbide OtherNames Vanadium Carbon Section1 Chembox Identifiers CASNo Ref cascite CASNo 12070 10 9 PubChem 159387 Section2 Chembox Properties Formula VC MolarMass 62.953 g mol Appearance refractory black cubic crystal system cubic crystals Density 5.77 g cm sup 3 sup Solubility insoluble SolubleOther MeltingPt 2810 C BoilingPt Section3 Chembox Structure CrystalStruct cubic , Pearson symbol cF8 SpaceGroup Fm u style text decoration overline 3 u m, No. 225 Vanadium carbide , Vanadium V Carbon C , is an extremely hardness hard refraction metallurgy refractory ceramic material. It is commercially used in tool bit s cutting tool s. It has the appearance of gray metallic powder with cubic crystal system cubic crystal structure . Vanadium carbide is chemically stable and has excellent high temperature property. It can be used as an additive to tungsten carbide to fine the carbide crystals to improve the property of the cermet . Vanadium Carbide can be formed in the 111 orientation, when formed by R.F. Magnetron Sputtering. Although Vanadium Carbide is a very thermodynamically stable ceramic, V sub 2 sub C is energy favorable to exist at temperatures above 900 C. References Refimprove date May 2009 reflist Vanadium compounds Category Carbides Category Vanadium compounds Category Superhard materials Category Refractory materials inorganic compound stub ar de Vanadiumcarbid it Carburo di vanadio nl Vanadiumcarbide ... more details
Vanadium bromoperoxidase is a haloperoxidase , used to synthesize halogenated organic compounds associated with defense and pigmentation in seaweeds and marine algae. It is the source of the bulk of organobromine compounds in the ocean. This enzyme class is unusual in that it has an absolute requirement for the transition metal vanadium , which is present as vanadate . Vanadium bromoperoxidases have been found in bacteria, fungi, and marine macroalgae seaweeds which produce brominated compounds. It has not been definitively identified as the bromoperoxidase of higher eukaryotes, such as Murex snails, which have a very stable and specific bromoperoxidase, but perhaps not a vanadium dependent one. ref PMID 19363038 Review of vanadium dependent bromoperoxidases in nature ref The enzymes catalyses the oxidation of bromide ions by hydrogen peroxide , which results in the specific bromination of certain eletrophilic organic substrates. The enzyme will form singlet oxygen in the absence of the appropriate organic substrates. References reflist Cite journal journal Natural Product Reports year 2004 volume 21 pages 180&ndash 188 doi 10.1039 b302337k title The role of vanadium bromoperoxidase in the biosynthesis of halogenated marine natural products first Alison last Butler coauthors Catter Facklin, Jayen M. pmid 15039842 issue 1 PDB 1qhb Category Enzymes Category EC 1.11.1 Enzyme stub ... more details
chembox verifiedrevid 402870386 Name Vanadium tetrachloride ImageFile Vanadium tetrachloride 3D balls.png ImageSize 200px ImageName Vanadium tetrachloride IUPACName Vanadium tetrachloride br Vanadium IV chloride OtherNames Section1 Chembox Identifiers InChI 1 4ClH.2V h4 1H q 2 2 p 4 InChIKey UNUHYFVFMNJHJW XBHQNQODAR SMILES V 2 . V 2 . Cl . Cl . Cl . Cl StdInChI Ref stdinchicite correct chemspider StdInChI 1S 4ClH.2V h4 1H q 2 2 p 4 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey UNUHYFVFMNJHJW UHFFFAOYSA J CASNo 7632 51 1 CASNo Ref cascite correct CAS PubChem 24273 ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 19956660 RTECS YW2625000 Section2 Chembox Properties ... NFPA O W Section8 Chembox Related OtherAnions vanadium tetrafluoride , vanadium disulfide , vanadium ... , tantalum tetrachloride OtherCpds vanadium trichloride Vanadium tetrachloride is the chemical compound with the formula Vanadium V Cl sub 4 sub . This bright red liquid is an important starting reagent in the preparation of vanadium compounds. It forms adducts with many donor ligands, for example, VCl ... is prepared by chlorination of vanadium metal. Notice that VCl sub 5 sub cannot be prepared under normal ... sub 4 sub releases Cl sub 2 sub at its boiling point standard pressure to afford vanadium III chloride ... phenol into 4,4 biphenol. ref M. K. O Brien, B. Vanasse, Vanadium IV Chloride in Encyclopedia ... to Vanadium III chloride chem VCl 3 in the process. 2 C sub 6 sub H sub 5 sub OH 2 VCl sub 4 sub HOC ... involves the intermediacy of vanadium alkyls. Further reinforcing its high oxidizing powers, VCl sub 4 sub reacts with HBr at 50C to produce Vanadium III bromide VBr sub 3 sub . The reaction proceeds ... of Vanadium III and Molybdenum IV Bromides by Halide Exchange journal Dalton Transactions year ... references Vanadium compounds Category Vanadium compounds Category Chlorides Category Metal halides Category Reagents for organic chemistry de Vanadium IV chlorid nl Vanadium IV chloride ja ... more details
vanadium nitride year 1988 author Kubel, F. Lengauer, W. Yvon, K. Junod, A. journal Physical Review ... title Superconducting and normal state properties of vanadium nitride year 1984 author ... vanadium nitride has been claimed to have potential for use in supercapacitors . ref cite ... Vanadium Nitride Supercapacitors year 2006 author Choi, D. Blomgren, G. E. Kumta, P. N. journal Advanced Materials volume 18 pages 1178 ref References reflist Vanadium compounds Category Vanadium compounds Category Nitrides inorganic compound stub ar ja III ... more details
. Vanadium Nitrogenases are found in members of the bacteria genus Azotobacter as well as the species ... author Rehder D. title Vanadium Nitrogenase journal Journal of Inorganic Biochemistry year 2000 volume ... palustris journal Nature Biotechnology year 2004 volume 22 issue 55 ref Vanadium nitrogenase ... An important component in nature s nitrogen cycle , vanadium nitrogenase in the presence of dinitrogen ..., U.S. researchers discovered that nitrogen deprived vanadium nitrogenase in the presence of carbon ... Vanadium nitrogenases are found in members of the bacteria genus Azotobacter as well as the species ... and others 2004 Most of the functions of vanadium nitrogenase match that of the more common molybdenum ... conditions. ref name eady cite journal author Eady R. R. title The Vanadium Nitrogenase of Azotobacter ... 21 22 pages 2144 2155 ref Vanadium nitrogenase has an sub 2 sub sub 2 sub sub 2 sub protein ... the structural genes encoding vanadium nitrogenase shows only about 15 conservation with molybdenum nitrogenases, the two nitrogenases share the same type of redox centers. At room temperature, vanadium ... more Hydrogen ion H sup sup to H sub 2 sub . ref name eady However, at low temperatures vanadium .... ref cite journal author Miller R. W., Eady R. R. title Molybdenum and vanadium nitrogenases of Azotobacter chroococcum . Low temperature favours N2 reduction by vanadium nitrogenase. pmc 1135427 ... to ethylene and ethane can be produced during catalytic activity. Vanadium nitrogenase is easily ... by vanadium nitrogenase can be summarized as follows ref name rehder 2N sub 2 sub 12e sup sup ... the ability of the enzyme vanadium nitrogenase to convert carbon monoxide into trace amounts of propane ... author Lee C. C., Hu Y., Ribbe M. title Vanadium Nitrogenase Reduces CO journal Science year 2010 ... to the vanadium nitrogenase in an environment that completely lacked nitrogen. From the carbon monoxide ... Air? author Bland E. publisher Discovery News ref Vanadium nitrogenase produces alkanes through the reduction ... more details
chembox Watchedfields changed verifiedrevid 261972028 Name Vanadium oxytrichloride ImageFile Vanadium oxytrichloride.jpg ImageSize 150px ImageName Vanadium oxytrichloride fuming in air ImageFile1 Vanadyl chloride 3D balls.png ImageSize1 150px ImageName1 Ball and stick model of vanadyl chloride IUPACName Vanadium trichloride oxide OtherNames Vanadyl chloride br Vanadyl trichloride Section1 Chembox Identifiers CASNo 7727 18 6 CASNo Ref cascite PubChem 24410 RTECS YW2975000 Section2 Chembox Properties Formula VOCl sub 3 sub MolarMass 173.30 g mol Appearance Yellow to brown liquid Density 1.826 g cm sup 3 sup , liquid Solubility Decomposes Solvent other solvents SolubleOther chlorinated solvents MeltingPtC 76.5 BoilingPtC 126.7 VaporPressure 8.1 Pascal unit Pa 20 C Section3 Chembox Structure MolShape Tetrahedral Dipole Section7 Chembox Hazards ExternalMSDS MainHazards Toxic, hydrolysis to HCl EUIndex Not listed NFPA H 3 NFPA R 3 NFPA F 1 RPhrases SPhrases LD50 140 mg kg oral in rats Section8 Chembox Related Function vanadium compounds OtherFunctn Vanadium V oxide br Vanadium tetrachloride br Vanadium oxytrifluoride OtherCpds Phosphoryl chloride Vanadium oxytrichloride is the inorganic compound with the chemical formula formula VOCl sub 3 sub . This distillable liquid hydrolyzes readily ... VOCl sub 3 sub is a vanadium V compound and as such is diamagnetic . It is tetrahedral with O V Cl ... by the chlorination of Vanadium V oxide V sub 2 sub O sub 5 sub . The reaction proceeds at ca ... tetrachloride TiCl sub 4 sub from Titanium oxide TiO sub 2 sub . Vanadium III oxide can also ... and alcoholysis Vanadium oxytrichloride quickly hydrolyzes resulting in Vanadium V oxide vanadium ... with various bases such as MeCN and amines. In forming the adducts, vanadium changes from four ... Vanadium compounds Category Vanadium compounds Category Oxochlorides Category Metal halides de Vanadium V oxidtrichlorid nl Vanadiumoxytrichloride ja fi Vanadiinioksitrikloridi ... 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 magnet. gallery References reflist Category Alloys Category Superconductivity Category Vanadium ... more details
chembox Name Vanadium carbonyl ImageFile V CO 6.png ImageSize 200px ImageName Vanadium carbonyl IUPACName hexacarbonylvanadium 0 OtherNames vanadium carbonyl Section1 Chembox Identifiers CASNo 20644 87 5 ChEBI 37857 RTECS Section2 Chembox Properties Formula C sub 6 sub O sub 6 sub V MolarMass 219.00 g mol Appearance blue green crystals br yellow solutions Density Solubility insoluble Solvent other solvents SolubleOther 5 g L hexane br more soluble in dichloromethane MeltingPt decomp BoilingPt sublimes 50 C 15 mm Hg Section3 Chembox Structure Coordination octahedral CrystalStruct orthorhombic Dipole 0 Debye D Section7 Chembox Hazards ExternalMSDS MainHazards CO source RPhrases SPhrases Section8 Chembox Related Function compounds OtherFunctn Chromium carbonyl Cr CO sub 6 sub , V CO sub 6 sub sub sub , Vanadium III chloride VCl sub 3 sub Vanadium carbonyl , also known as vanadium hexacarbonyl , is the inorganic compound with the chemical formula formula V CO sub 6 sub . This highly reactive species is noteworthy from theoretical and scholarly perspectives. It is a rare isolable homoleptic metal carbonyl that is paramagnetic. Most species with the formula M sub x sub CO sub y sub follow the eighteen electron rule 18e rule , whereas V CO sub 6 sub has 17 valence electrons. ref C. Elschenbroich, A. Salzer Organometallics A Concise Introduction 2nd Ed 1992 from Wiley VCH Weinheim. ISBN 3 527 28165 7 ref Synthesis Traditionally V CO sub 6 sub is prepared in two steps via the intermediacy of V CO sub 6 sub sup nowiki &minus nowiki sup . In the first step, VCl sub 3 sub is reduced with metallic sodium under 200 atm CO at 160 C. The solvent for this reduction is typically diglyme , CH ... and molecular structure of vanadium hexacarbonyl Acta Crystallographica1979. volume B35, pages 271 274 ... and Hexacarbonyl Vanadates Chimica e l Industria 1962, volume 44, 990 6. Vanadium compounds Category Vanadium compounds Category Carbonyl complexes nl Vanadiumhexacarbonyl ja ... more details
Naturally occurring vanadium V is composed of one stable isotope sup 51 sup V and one radioactive isotope sup 50 sup V with a half life of 1.5 10 sup 17 sup years. 24 artificial radioisotope s have been characterized in the range of mass number between 40 and 65 with the most stable being sup 49 sup V with a half life of 330 days, and sup 48 sup V with a half life of 15.9735 days. All of the remaining radioactive isotopes have half lives shorter than an hour, the majority of them below 10 seconds. In 4 isotopes, nuclear isomer metastable excited states were found including 2 metastable states for sup 60 sup V . The primary decay mode before the most abundant stable isotope sup 51 sup V is electron capture . The next most common mode is beta decay . The primary decay product s before sup 51 sup V are element 22 titanium isotopes and the primary products after are element 24 chromium isotopes. br Standard atomic mass 50.9415 1 unified atomic mass unit u 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 40 sup V style text align right 23 style text align right 17 40.01109 54 2 sup 41 sup V style text align right 23 style text align right 18 40.99978 22 7 2 sup 42 sup V style text align ... sources. See editing notes on Talk Isotopes of vanadium this article s talk page . cite journal author ..., M. Heim, A. Schuh, M. Thoennessen. Discovery of the Vanadium Isotopes. http arxiv.org abs 0907.1994 arXiv 0907.1994 2009 . Isotope nav element vanadium lighter Isotopes of titanium heavier Isotopes of chromium DEFAULTSORT Isotopes Of Vanadium Category Vanadium Category Isotopes of vanadium Category Lists of isotopes by element Vanadium ca Is tops del vanadi hu A van dium izot pjai ja ... more details
Vector version available Vanadium battery.svg Summary Created by Astaroth5 at the time of his first rewrite of the Vanadium redox battery article Licensing PD self date October 2006 ... more details
chembox ImageFile Vanadium II oxide 3D vdW.png ImageSize 180px IUPACName Vanadium II oxide OtherNames Vanadium oxide Section1 Chembox Identifiers CASNo 12035 98 2 CASNo Ref cascite PubChem 24411 RTECS Section2 Chembox Properties Formula VO MolarMass 66.9409 g mol Appearance grey solid with metallic lustre Density 5.758 g cm sup 3 sup Solubility MeltingPt 1789 C BoilingPt 2627 C pKa pKb RefractIndex 1.5763 Section3 Chembox Structure CrystalStruct Halite cubic , Pearson symbol cF8 SpaceGroup Fm u style text decoration overline 3 u m, No. 225 Coordination Octahedral V sup 2 sup br Octahedral O sup 2&minus sup LattConst a Section7 Chembox Hazards ExternalMSDS EUIndex Not listed EUClass RPhrases SPhrases MainHazards NFPA H NFPA F NFPA R NFPA O FlashPt Non flammable Section8 Chembox Related OtherAnions Vanadium monosulfide br Vanadium monoselenide br Vanadium monotelluride OtherCations Niobium II oxide br Tantalum II oxide OtherFunctn Vanadium III oxide br Vanadium IV oxide br Vanadium V oxide Function vanadium oxide s OtherCpds Vanadium II oxide , VO, is one of the many vanadium oxide oxides of vanadium . VO is a long lived, electronically neutral reagent chemical. It adopts a distorted Sodium chloride Crystal structure NaCl structure and contains weak V V metal to metal bonds. VO is a non stoichiometric compound , its composition varying from VO sub 0.8 sub to VO sub 1.3 sub ref Greenwood&Earnshaw2nd page 982 ref . References reflist Vanadium compounds Category Vanadium compounds Category Oxides Category Non stoichiometric compounds inorganic compound stub ar cs Oxid vanadnat nl Vanadium II oxide ja II ... more details
chembox verifiedrevid 382463499 Name Vanadium III iodide ImageFile ImageName IUPACName Vanadium III iodide OtherNames Vanadium triiodide Section1 Chembox Identifiers SMILES CASNo 15513 94 7 PubChem 3627252 RTECS Section2 Chembox Properties Formula VI sub 3 sub MolarMass 431.6549 g mol Appearance black solid Density 5.14 g cm sup 3 sup , solid Solubility soluble Solvent other solvents SolubleOther MeltingPt Section3 Chembox Structure Coordination octahedral CrystalStruct Section7 Chembox Hazards ExternalMSDS MainHazards RPhrases SPhrases Section8 Chembox Related OtherAnions Vanadium III bromide OtherCations Titanium III iodide Function compounds OtherFunctn VI sub 2 sub ? Vanadium III iodide is the inorganic compound with the formula VI sub 3 sub . This paramagnetic solid is generated by the reaction of vanadium powder with iodine at around 500 C. ref name ZaaC cite journal journal Z. Anorg. Allg. Chem. volume 366 issue 3 4 pages 121 9 doi 10.1002 zaac.19693660303 first D. last Juza coauthor Giegling, D. and Sch fer, H. title ber die Vanadiniodide VJ sub 2 sub und VJ sub 3 sub year 1969 ref The black hygroscopic crystals, dissolving in water to give green solutions, characteristic of V III ions. The purification of vanadium metal by the chemical transport reaction involving the reversible formation of vanadium III iodides in the presence of iodine and its subsequent decomposition ... adopted by bismuth III iodide the iodides are hexagonal closest packed and the vanadium centers occupy ... , which is probably the volatile vanadium component in the vapor transport method. Thermal decomposition of the triiodide leaves a residue of vanadium II iodide ref cite journal journal Inorg. Chem. volume ..., R. E. title Vaporization reactions of vanadium iodides and evidence for gaseous vanadium IV iodide ... Vanadium compounds Category Iodides Category Metal halides Category Vanadium compounds de Vanadium III iodid nl Vanadium III jodide ja III ... more details
chembox verifiedrevid 414405231 ImageFile ImageSize 200px ImageName Vanadium trioxide OtherNames Vanadium sesquioxide, Vanadic oxide Section1 Chembox Identifiers CASNo 1314 34 7 CASNo Ref cascite PubChem 518710 RTECS YW3050000 Section2 Chembox Properties Formula V sub 2 sub O sub 3 sub MolarMass 149.881 g mol Density 4.87 g cm sup 3 sup Solvent other solvents SolubleOther Insoluble MeltingPt 1940 C Appearance Black powder Section3 Chembox Structure CrystalStruct Trigonal karelianite , Pearson symbol hR30 SpaceGroup R 3c h, No. 167 Vanadium trioxide is the chemical compound V sub 2 sub O sub 3 sub . It is prepared by reduction of vanadium pentoxide V sub 2 sub O sub 5 sub with hydrogen or carbon monoxide . ref name Greenwood Greenwood&Earnshaw ref It is a basic oxide dissolving in acids to give reducing vanadium III solutions. ref name Greenwood V sub 2 sub O sub 3 sub has the alumina corundum structure. ref name Greenwood It is antiferromagnetic with a critical temperature of 160 K. ref name Page E.M. Page, S.A.Wass 1994 , Vanadium Inorganic and Coordination chemistry , Encyclopedia of Inorganic Chemistry, John Wiley & Sons, ISBN 0 471 93620 0 ref At this temperature there is an abrupt change in conductivity from metallic to insulating. ref name Page On exposure to air it is gradually converted into indigo blue crystals of V sub 2 sub O sub 4 sub . ref name Page Vanadium trioxide is generally used as a catalyst when making ethanol from ethylene . Fact date June 2008 In nature it occurs only rarely, as the mineral karelianite. References reflist Vanadium compounds Category Vanadium compounds Category Oxides Category Sesquioxides Inorganic compound stub ar de Vanadium III oxid nl Vanadium III oxide ru III fi Vanadiinitrioksidi ... more details
chembox verifiedrevid 402871120 Name Vanadium IV fluoride ImageFileL1 VF4structure1.jpg ImageFileR1 VF4structure2.jpg ImageName Vanadium IV fluoride OtherNames vanadium tetrafluoride Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 11226730 InChI 1 4FH.V h4 1H q 4 p 4 InChIKey JTWLHYPUICYOLE XBHQNQODAC SMILES V 4 . F . F . F . F StdInChI Ref stdinchicite correct chemspider StdInChI 1S 4FH.V h4 1H q 4 p 4 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey JTWLHYPUICYOLE UHFFFAOYSA J CASNo 10049 16 8 PubChem 165641 Section2 Chembox Properties Formula VF sub 4 sub MolarMass 126.9351 g mol Appearance lime green powder Density 2.975 g cm , solid Solubility decomposes MeltingPt 325 C BoilingPt decomposes Section3 Chembox Structure CrystalStruct Monoclinic , Pearson symbol mP10 SpaceGroup P2 sub 1 sub c, No. 14 Section7 Chembox Hazards EUClass not listed Vanadium IV fluoride Vanadium V Fluorine F sub 4 sub is a chemical compound of vanadium and fluorine . VF sub 4 sub can be prepared by reacting VCl sub 4 sub with HF in CCl sub 3 sub F at 25 C. VF sub 4 sub decomposes at approximately 150 C to form VF sub 3 sub . br The structure of VF sub 4 sub is related to that of SnF sub 4 sub and has corner sharing VF sub 6 sub octahedra. It is paramagnetic . ref Vanadium Tetrafluoride , Becker S., Muller B. G., Angew. Chem. Intnl. Ed. Engl. 29 1990 No. 4 406 ref General references http www.webelements.com WebElements Cotton&Wilkinson6th References reflist Vanadium compounds Category Vanadium compounds Category Fluorides Category Inorganic compound stubs inorganic compound stub ar de Vanadium IV fluorid nl Vanadium IV fluoride ... more details
chembox Name Vanadium V oxytrifluoride OtherNames Vanadium oxyfluoride, trifluorooxovanadium Section1 Chembox Identifiers CASNo 13709 31 4 PubChem 123322 Section2 Chembox Properties Formula F sub 3 sub OV MolarMass 123.9599 g mol Appearance white solid Density 2.4590 g cm sup 3 sup Solubility insoluble MeltingPt 300 C BoilingPt 480 C Section7 Chembox Hazards EUClass not listed NFPA H 3 NFPA F NFPA R Section8 Chembox Related OtherCpds vanadium V fluoride VF sub 5 sub br Vanadium V oxytrichloride VOCl sub 3 sub br VO sub 2 sub F Vanadium V oxytrifluoride is a chemical compound with the chemical formula formula Vanadium V Oxygen O Fluorine F sub 3 sub . It is one of several vanadium V oxyhalides. Characteristic of early metal fluorides, the structure is polymeric in the solid state. The solid adopts a layered structure but upon evaporation, the species becomes dimeric. In contrast Vanadium V oxytrichloride VOCl sub 3 sub and VOBr sub 3 sub remain tetrahedral in all states, being volatile liquids at room temperature. ref Holleman, A. F. Wiberg, E. Inorganic Chemistry Academic Press San Diego, 2001. ISBN 0 12 352651 5. ref In organic synthesis , VOF sub 3 sub is often used for the oxidative coupling of phenol ic rings, for example in the syntheses of vancomycin and its analogues. ref Benoit Vanasse, Michael K. O Brien Vanadyl Trifluoride in Encyclopedia of Reagents for Organic Synthesis, 2001, John Wiley & Sons, New York. DOI 10.1002 047084289X.rv005 ref For these applications VOF sub 3 sub is typically dissolved in trifluoroacetic acid . References reflist Vanadium compounds Category Oxofluorides Category Vanadium compounds Category Inorganic compound stubs inorganic compound stub ar ja ... more details
chembox verifiedrevid 405511633 ImageFile Vanadium IV oxide 3D polyhedra.png ImageSize 200px ImageName Vanadium IV oxide IUPACName Vanadium IV oxide OtherNames Vanadium dioxide br Vanadium tetroxide Section1 Chembox Identifiers CASNo 12036 21 4 CASNo Ref cascite PubChem 82849 Section2 Chembox Properties Formula VO sub 2 sub MolarMass 82.94 g mol Appearance Deep Blue Powder ref Chemistry of the Elements 2nd Ed. Greenwood p. 981 ref Density 4.571 g cm sup 3 sup monoclinic br 4.653 g cm sup 3 sup tetragonal Solubility MeltingPt 1967 C BoilingPt pKa pKb Section3 Chembox Structure CrystalStruct Distorted rutile 70 C, monoclinic br Rutile 70 C, tetragonal Coordination Section7 Chembox Hazards ExternalMSDS ... F 0 NFPA R 0 NFPA O FlashPt Non flammable Section8 Chembox Related OtherAnions Vanadium disulfide br Vanadium diselenide br Vanadium ditelluride OtherCations Niobium IV oxide br Tantalum IV oxide OtherFunctn Vanadium II oxide br Vanadium III oxide br Vanadium V oxide Function vanadium oxide s OtherCpds Vanadium IV oxide is the chemical compound VO sub 2 sub . It is formed in the contact process from V sub 2 sub O sub 5 sub , which acts as a catalyst . Vanadium IV oxide is amphoteric , dissolving ... Tungsten doped vanadium dioxide W VO sub 2 sub with 1.9 tungsten content has been investigated for use ... much greater reflectivity . ref http www.solgel.com articles August00 thermo Guzman.htm Sol Gel Vanadium ... Bot generated title ref Image Nanostars it1302.jpg thumb left Nanostars of Vanadium IV oxide Vanadium dioxide can act as an extremely fast optical shutter. The thermochromic phase transition ... s fastest optical shutter Bot generated title ref Vanadium dioxide, especially in its nanocrystalline .... See also Vanadium redox battery References reflist Vanadium compounds Category Vanadium compounds Category Oxides inorganic compound stub ar cs Oxid vanadi it de Vanadium IV oxid nl Vanadium IV oxide fi Vanadiinidioksidi ... more details
chembox verifiedrevid 402870907 Name Vanadium III fluoride ImageFile Aluminium trifluoride 3D polyhedra.png ImageFile2 FeF3structure.jpg ImageName Vanadium III fluoride OtherNames Vanadium fluoride, Vanadium trifluoride Section1 Chembox Identifiers InChI 1 3FH.V h3 1H q 3 p 3 InChIKey PASVSMBJEYQYSN DFZHHIFOAM SMILES V 3 . F . F . F StdInChI Ref stdinchicite correct chemspider StdInChI 1S 3FH.V h3 1H q 3 p 3 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey PASVSMBJEYQYSN UHFFFAOYSA K CASNo 10049 12 4 PubChem 66230 ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 16057827 Section2 Chembox Properties Formula VF sub 3 sub MolarMass 107.9367 g mol Appearance gray green powder Density 3.363 g cm sup 3 sup , solid Solubility insoluble MeltingPt 1406 C BoilingPt Section3 Chembox Structure CrystalStruct Rhombohedral , Pearson symbol hR24 SpaceGroup R 3c, No. 167 Section7 Chembox Hazards EUClass not listed NFPA H 3 NFPA R 2 NFPA F 0 Section8 Chembox Related OtherAnions Vanadium III chloride br Vanadium III oxide br Vanadium III nitride OtherCations Vanadium IV fluoride OtherFunctn Function OtherCpds Vanadium III fluoride is the chemical compound with the formula Vanadium V Fluorine F sub 3 sub . This gray green, refractory solid is obtained in a two step procedure from V sub 2 sub O sub 3 sub . ref Sturm, B. J. Sheridan, C. W. Vanadium III Fluoride Inorganic Syntheses 1963 Vol. 7, pages 52 54. ISBN 0 88275 165 4. ref The first step entails conversion to the hexafluorovanadate III salt using ammonium bifluoride V sub 2 sub O sub 3 sub 6 NH sub 4 sub HF sub 2 sub 2 NH sub 4 sub sub 3 sub VF sub 6 sub 3 H sub 2 sub O In the second step, the hexafluorovanadate ... with HF. VF sub 3 sub is a crystalline solid with 6 coordinate vanadium atoms with bridging fluorine ... reflist Vanadium compounds Category Fluorides Category Vanadium compounds Category Inorganic compound stubs inorganic compound stub ar de Vanadium III fluorid nl Vanadium ... more details
Infobox company company name Panzhihua New Steel & Vanadium Company Limited br company logo Image Pzhnsv.png company type State owned enterprise genre foundation 1993 founder location city flagicon China Panzhihua , Sichuan location country China location origins key people Chairman Mr. Fan Zhengwei br General manager Mr. Zhang Dade area served China industry Iron , steel and vanadium manufacturing products services revenue operating income net income num employees divisions parent Panzhihua Iron and Steel subsid owner company slogan homepage http www.pgsv.com Panzhihua New Steel and Vanadium Company Limited Panzhihua New Steel & Vanadium Company Limited szse 000629 , parent company parented by Panzhihua Iron and Steel , involves in the manufacture and sales of iron , steel and vanadium products. It is headquartered in Panzhihua , Sichuan , China . ref http finance.google.com finance?q SHE 000629 Panzhihua New Steel & Vanadium Co., Ltd ref It was established in 1993 with the name of Pangang Group Steel Plate Company Limited . It was listed on the Shenzhen Stock Exchange in 1996 . Its name was changed to Panzhihua New Steel & Vanadium Company Limited in 1998 . ref http investing.businessweek.com research stocks snapshot snapshot article.asp?symbol 000629 Panzhihua New Steel & Vanadium Co., Ltd. ref External links http www.pgsv.com Panzhihua New Steel and Vanadium Company Limited References reflist Steel companies of the People s Republic of China SZSECI Category Companies established in 1993 Category Companies based in Sichuan Category Steel companies of the People s Republic of China Category Central owned enterprises of the People s Republic of China zh ... more details
chembox verifiedrevid 402870501 Name Vanadium II chloride ImageFile Kristallstruktur Cadmiumiodid.png ImageSize 200px ImageName Vanadium II chloride IUPACName Vanadium II chloride OtherNames Vanadous chloride Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 59733 InChI 1 2ClH.V h2 1H q 2 p 2 InChIKey ITAKKORXEUJTBC NUQVWONBAZ SMILES Cl V Cl StdInChI Ref stdinchicite correct chemspider StdInChI 1S 2ClH.V h2 1H q 2 p 2 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey ITAKKORXEUJTBC UHFFFAOYSA L CASNo 10580 52 6 PubChem 66355 RTECS YW1575000 Section2 Chembox Properties Formula VCl sub 2 sub MolarMass 121.847 g mol Appearance pale green solid Density 3.230 g cm sup 3 sup Solubility soluble MeltingPtC 1027 BoilingPtC 1506 Section3 Chembox Structure Coordination octahedral CrystalStruct Cadmium iodide Crystal structure CdI sub 2 sub Section7 Chembox Hazards ExternalMSDS MainHazards Reacts with oxygen rapidly RPhrases 20 21 22 34 SPhrases 26 27 36 37 39 45 Section8 Chembox Related OtherAnions vanadium II fluoride , vanadium dibromide OtherCations titanium dichloride , chromium II chloride OtherCpds vanadium trichloride Vanadium II chloride is VCl sub 2 sub . It is the most reduced vanadium chloride known. The species has the d sup 3 sup configuration, with a quartet ground state, akin to Cr III . This salt like solid has a Coordination polymer polymeric structure. The other dihalides are also known, and VBr sub 2 sub and VI sub 2 sub are structurally and chemically similar to the dichloride. It is prepared by thermal decomposition of VCl sub 3 sub to volatile VCl sub 4 sub , leaving a residue of VCl sub 2 sub . Vanadium dichloride ... 0 12 352651 5. Young, R. C. Smith, M. E. Vanadium II Chloride Inorganic Syntheses volume IV, page 126 127, 1953. Vanadium compounds DEFAULTSORT Vanadium Ii Chloride Category Vanadium compounds Category Chlorides Category Metal halides de Vanadium II chlorid nl Vanadium II chloride ja II ... more details
Orphan date December 2009 The Lac Dor Vanadium Deposit is a vanadium mineral deposit deposit first discovered by the Government of Quebec at Lac Dor . The closest mining town to the site is Matagami, Quebec Matagami . In 1998, its control was transferred to the Soci t g n rale de financement du Qu bec , and its wholly owned subsidiary SOQUEM ref cite press author Patrick D. O Brien date 17 November 2007 title Apella Forms Vanadium Iron Titanium Subsidiary Power Vanadium Corporation url http www.foxbusiness.com story markets industries industrials apella forms vanadium iron titanium subsidiary power vanadium corporation 1823209954 publisher Fox Business accessdate 2010 01 01 ref In 2002, McKenzie Bay International announced it had taken the first step towards development of the deposit since the completion of a feasibility study by SNC Lavalin PR 16 April 2002 . Entraco , a Montreal based environmental consulting firm, was contacted to help out with the environmental impact study and secure necessary permits to construct a mine, refinery and product manufacturing facilities at Lac Dor . Entraco was instructed to apply the same high Environmental quality environmental standards established in previous cases, to minimize environmental issues later on. No action was taken until 21 August 2007 when claims covering the renowned deposit expired. Apella Resources and SOQUEM both staked their claims that day. In 2009 Apella Resources received the rights to the stake in a preliminary ... accessdate 2010 01 01 ref In December 2009 assaying found the ore to have from 0.46 to 0.64 of Vanadium ... on exploration effors at Lac Dore North Vanadium Project url http www.proactiveinvestors.co.uk companies news 10881 apella resources reports on exploration efforts at lac dore north vanadium project 10881.html publisher Proactive Investors UK accessdate 2010 01 01 ref The Lac Dore Vanadium Deposit ... mining stub canada stub Category Vanadium ... more details
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