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Revision as of 15:47, 10 January 2012 editBeetstra (talk | contribs)Edit filter managers, Administrators172,071 edits Saving copy of the {{chembox}} taken from revid 402872710 of page Vanadium(III)_fluoride for the Chem/Drugbox validation project (updated: 'CASNo').		Latest revision as of 16:23, 21 December 2023 edit Praseodymium-141 (talk | contribs)Autopatrolled, Extended confirmed users, New page reviewers22,377 editsNo edit summaryTag: 2017 wikitext editor
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	{{ambox | text = This page contains a copy of the infobox ({{tl|chembox}}) taken from revid of page ] with values updated to verified values.}}
	{{chembox		{{chembox
			| Verifiedfields = changed
⚫	| verifiedrevid = 402870907
			| Watchedfields = changed
⚫	| Name = Vanadium(III) fluoride
		⚫	| verifiedrevid = 470628735
	| ImageFile =Aluminium-trifluoride-3D-polyhedra.png
		⚫	| Name = Vanadium(III) fluoride
	| ImageFile2 =FeF3structure.jpg
			| ImageFile = RhF3.png
	| ImageName = Vanadium(III) fluoride
			| ImageName =
	| OtherNames = Vanadium fluoride, Vanadium trifluoride		| OtherNames = Vanadium fluoride, Vanadium trifluoride
	| Section1 = {{Chembox Identifiers		|Section1={{Chembox Identifiers
	| InChI = 1/3FH.V/h3*1H;/q;;;+3/p-3		| InChI = 1/3FH.V/h3*1H;/q;;;+3/p-3
	| InChIKey = PASVSMBJEYQYSN-DFZHHIFOAM		| InChIKey = PASVSMBJEYQYSN-DFZHHIFOAM
	| SMILES = ...		| SMILES = ...
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	| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}		| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
	| StdInChIKey = PASVSMBJEYQYSN-UHFFFAOYSA-K		| StdInChIKey = PASVSMBJEYQYSN-UHFFFAOYSA-K
			| CASNo_Ref = {{cascite|changed|??}}
	| CASNo = <!-- blanked - oldvalue: 10049-12-4 -->
	| PubChem = 66230		| CASNo = 10049-12-4
			| UNII_Ref = {{fdacite|changed|FDA}}
			| UNII = O3S3Z32R8P
			| PubChem = 66230
	| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}		| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
	| ChemSpiderID=16057827		| ChemSpiderID=16057827
	}}		}}
	| Section2 = {{Chembox Properties		|Section2={{Chembox Properties
			| V=1 | F=3
	| Formula = VF<sub>3</sub>
			| Appearance = Yellow-green powder (anhydrous)<br> Green powder (trihydrate)<ref name=crc />
	| MolarMass = 107.9367 g/mol
		⚫	| Density = 3.363 g/cm<sup>3</sup><ref name=crc />
	| Appearance = gray-green powder
			| Solubility = Insoluble<ref name=crc />
⚫	| Density = 3.363 g/cm<sup>3</sup>, solid
			| SolubleOther = Insoluble in ]<ref name=crc />
	| Solubility = insoluble
	| MeltingPt = 1406 °C		| MeltingPtC = 1395
			| MeltingPt_notes = <br> at 760 mmHg (anhydrous)<br> ~ {{convert|100|C|F K}}<br> at 760 mmHg (trihydrate) decomposes<ref name=crc>{{CRC90}}</ref>
	| BoilingPt =		| BoilingPt = Sublimes
			| MagSus = 2.757·10<sup>−3</sup> cm<sup>3</sup>/mol<ref name=crc />
	}}		}}
	| Section3 = {{Chembox Structure		|Section3={{Chembox Structure
			| CrystalStruct = ], ]<ref name=sccs>{{cite book|url = https://books.google.com/books?id=hYRCAAAAQBAJ&pg=PA102|title = Structure and Chemistry of Crystalline Solids|last1 = Douglas|first1 = Bodie E.|last2 = Ho|first2 = Shih-Ming|publisher = Springer Science+Business Media, Inc.|year = 2007|isbn = 978-0-387-26147-8|place = New York|page = 102}}</ref>
	| CrystalStruct = ], ]
	| SpaceGroup = R-3c, No. 167		| SpaceGroup = R{{overline|3}}c, No. 167<ref name=sccs />
			| PointGroup = {{overline|3}} 2/m<ref name=sccs />
⚫	}}
			| LattConst_a = 5.17&nbsp;Å
⚫	| Section7 = {{Chembox Hazards
			| LattConst_b =
	| EUClass = not listed
			| LattConst_c = 13.402&nbsp;Å<ref name=sccs />
⚫	| NFPA-H = 3
	| NFPA-R = 2		| LattConst_alpha =
	| NFPA-F = 0		| LattConst_beta =
			| LattConst_gamma = 120
⚫	}}
		⚫	}}
⚫	| Section8 = {{Chembox Related
		⚫	|Section7={{Chembox Hazards
			| MainHazards =
			| GHSPictograms = {{GHS05}}{{GHS06}}<ref name="sigma">{{Sigma-Aldrich|id=399809|name=Vanadium(III) fluoride|accessdate=2014-06-25}}</ref>
			| GHSSignalWord = Danger
			| HPhrases = {{H-phrases|301|311|331|314}}<ref name="sigma" />
			| PPhrases = {{P-phrases|261|280|301+310|305+351+338|310}}<ref name="sigma" />
		⚫	| NFPA-H = 3
			| NFPA-R = 2
			| NFPA-F = 0
		⚫	}}
		⚫	|Section8={{Chembox Related
	| OtherAnions = ]<br> ]<br> ]		| OtherAnions = ]<br> ]<br> ]
	| OtherCations = ]		| OtherCations = ]
	| OtherFunctn =		| OtherFunction =
	| Function =		| OtherFunction_label =
	| OtherCpds = }}		| OtherCompounds =
			}}
	}}		}}
			'''Vanadium(III) fluoride''' is the ] with the formula ]]. This yellow-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>
			Similar to other transition-metal fluorides (such as ]), it exhibits magnetic ordering at low temperatures (e.g. V<sub>2</sub>F<sub>6</sub>.4H<sub>2</sub>O orders below 12 K<ref>S. Nakhal et al., Z. Kristallogr. 228, 347 (2013).{{doi|10.1524/zkri.2013.1664}}</ref>).
			==Preparation==
			The first step entails conversion to the hexafluorovanadate(III) salt using ] ]:
			: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 is thermally decomposed.
			:(NH<sub>4</sub>)<sub>3</sub>VF<sub>6</sub> → 3 NH<sub>3</sub> + 3 ] + VF<sub>3</sub>
			The thermal decomposition of ammonium salts is a relatively common method for the preparation of inorganic solids.
			VF<sub>3</sub> can also be prepared by treatment of V<sub>2</sub>O<sub>3</sub> with HF.{{Citation needed|date=June 2020}}
			VF<sub>3</sub> is a crystalline solid with 6 coordinate vanadium atoms with bridging fluorine atoms. The magnetic moment indicates the presence of two unpaired electrons.
			==References==
			{{reflist}}
			*{{Greenwood&Earnshaw}}
			{{Vanadium compounds}}
			{{fluorine compounds}}
			]
			]
			]