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Revision as of 16:30, 10 January 2012 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Saving copy of the {{chembox}} taken from revid 435174135 of page Yttrium(III)_fluoride for the Chem/Drugbox validation project (updated: '').  Latest revision as of 15:47, 5 March 2024 edit Maxim Masiutin (talk | contribs)Extended confirmed users, IP block exemptions, Pending changes reviewers31,043 edits Rescuing 4 sources and tagging 0 as dead.) #IABot (v2.0.9.5Tag: IABotManagementConsole [1.3] 
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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
| verifiedrevid = 402887060 | verifiedrevid = 470635281
| Name = Yttrium(III) fluoride | Name = Yttrium(III) fluoride
| ImageFile = Kristallstruktur Yttrium(III)-fluorid.png | ImageFile = Kristallstruktur Yttrium(III)-fluorid.png
| ImageName = Yttrium(III) fluoride | ImageName = Yttrium(III) fluoride
| OtherNames = yttrium trifluoride | OtherNames = yttrium trifluoride
| Section1 = {{Chembox Identifiers |Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 75502 | ChemSpiderID = 75502
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| StdInChIKey = RBORBHYCVONNJH-UHFFFAOYSA-K | StdInChIKey = RBORBHYCVONNJH-UHFFFAOYSA-K
| CASNo = 13709-49-4 | CASNo = 13709-49-4
| CASNo_Ref = {{cascite|correct|CAS}} | CASNo_Ref = {{cascite|correct|CAS}}
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = V8QS7WES60
| PubChem = 83679 | PubChem = 83679
| EC_number = 237-257-5
}} }}
| Section2 = {{Chembox Properties |Section2={{Chembox Properties
| Formula = YF<sub>3</sub> | Formula = YF<sub>3</sub>
| MolarMass = 145.90 g mol<sup>−1</sup> | MolarMass = 145.90 g mol<sup>−1</sup>
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| RefractIndex = 1.51 (500 nm) | RefractIndex = 1.51 (500 nm)
}} }}
| Section3 = {{Chembox Structure |Section3={{Chembox Structure
| CrystalStruct = ], ], SpaceGroup = Pnma, No. 62 | CrystalStruct = ], ], SpaceGroup = Pnma, No. 62
}} }}
| Section7 = {{Chembox Hazards |Section7={{Chembox Hazards
| ExternalMSDS = | ExternalSDS =
⚫ | NFPA-H =
| EUIndex = Not listed
| NFPA-H = | NFPA-R =
| NFPA-R = | NFPA-F =
⚫ | NFPA-F =
| FlashPt = Non-flammable | FlashPt = Non-flammable
| GHSPictograms = {{GHS07}}
| GHSSignalWord = Warning
| HPhrases = {{H-phrases|302|312|315|319|332|335}}
| PPhrases = {{P-phrases|261|264|270|271|280|301+312|302+352|304+312|304+340|305+351+338|312|321|322|330|332+313|337+313|362|363|403+233|405|501}}
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| Section8 = {{Chembox Related |Section8={{Chembox Related
| OtherAnions = ]<br/>]<br/>] | OtherAnions = ]<br />]<br />]
| OtherCations = ]<br/>] | OtherCations = ]<br />]
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}} }}

'''Yttrium(III) fluoride''' is an ] ] with the chemical formula ] ]. It is not known naturally in 'pure' form. The fluoride minerals containing essential yttrium include tveitite-(Y) (Y,Na)<sub>6</sub>Ca<sub>6</sub>Ca<sub>6</sub>F<sub>42</sub> and gagarinite-(Y) NaCaY(F,Cl)<sub>6</sub>. Sometimes mineral ] contains admixtures of yttrium.<ref>{{Cite journal|last=Dinér|first=Peter|date=February 2016|title=Yttrium from Ytterby|journal=Nature Chemistry|language=en|volume=8|issue=2|pages=192|doi=10.1038/nchem.2442|pmid=26791904|issn=1755-4349|doi-access=free|bibcode=2016NatCh...8..192D }}</ref><ref>{{Cite web|date=2021-01-21|title=Tiny particles produce huge photon avalanches|url=https://physicsworld.com/tiny-particles-produce-huge-photon-avalanches/|access-date=2021-06-11|website=Physics World|language=en-GB|archive-date=2022-01-19|archive-url=https://web.archive.org/web/20220119095555/https://physicsworld.com/a/tiny-particles-produce-huge-photon-avalanches/|url-status=live}}</ref>

==Synthesis==
YF<sub>3</sub> can be produced by reacting fluorine with ] or ] with ].<ref>{{Citation |last1=SCHENK |first1=P.W. |title=Preparative Methods |date=1963 |url=http://dx.doi.org/10.1016/b978-0-12-395590-6.50008-9 |work=Handbook of Preparative Inorganic Chemistry |pages=3–107 |access-date=2023-12-24 |publisher=Elsevier |last2=BRAUER |first2=G. |doi=10.1016/b978-0-12-395590-6.50008-9 |isbn=978-0-12-395590-6 |archive-date=2024-03-05 |archive-url=https://web.archive.org/web/20240305154732/https://www.sciencedirect.com/science/article/abs/pii/B9780123955906500089?via%3Dihub |url-status=live }}</ref>

:Y(OH)<sub>3</sub> + 3HF → YF<sub>3</sub> + 3H<sub>2</sub>O

== Properties ==

Yttrium(III) fluoride has a refractive index of 1.51 at 500 nm<ref>{{Cite web |date=2007-09-28 |title=General Reserch Institute Nonferrous Metals |url=http://en.grinm.com/channel.do?cmd=preview&id=348&&nid=1254 |access-date=2023-12-24 |archive-url=https://web.archive.org/web/20070928110301/http://en.grinm.com/channel.do?cmd=preview&id=348&&nid=1254 |archive-date=2007-09-28 }}</ref> and is transparent in the range from 193 nm to 14,000 nm (i.e. from the UV to IR range).

Pure yttrium can be obtained from yttrium(III) fluoride by reduction with ].

Yttrium(III) fluoride crystallizes in the ], with ] Pnma (space group no. 62), with the lattice parameters a = 6.3537 Å, b = 6.8545 Å, c = 4.3953 Å.<ref>{{Cite journal |last1=Cheetham |first1=A. K. |last2=Norman |first2=N. |last3=Hope |first3=Håkon |last4=Kjekshus |first4=Arne |last5=Klewe |first5=Bernt |last6=Powell |first6=D. L. |date=1974 |title=The Structures of Yttrium and Bismuth Trifluorides by Neutron Diffraction. |journal=Acta Chemica Scandinavica |volume=28a |pages=55–60 |doi=10.3891/acta.chem.scand.28a-0055 |issn=0904-213X|doi-access=free }}</ref> Yttrium is nine times coordinated by fluorine atoms.

==Occurrence and uses==
It occurs as the mineral ].<ref>{{cite web |url=https://www.mindat.org/min-46049.html |title=Waimirite-(Y): Mineral information, data and localities. |access-date=2017-03-10 |archive-date=2022-01-11 |archive-url=https://web.archive.org/web/20220111020721/https://www.mindat.org/min-46049.html |url-status=live }}</ref>

Yttrium(III) fluoride can be used for the production of metallic yttrium,<ref>{{Cite web |title=Yttrium Fluoride, YF3 - For Optical Coating |url=http://www.cerac.com/pubs/proddata/yf3.pdf |access-date=2023-12-24 |archive-url=https://web.archive.org/web/20100705064306/http://www.cerac.com/pubs/proddata/yf3.pdf |archive-date=2010-07-05 }}</ref> thin films, glasses<ref>{{Cite web |title=Yttrium Fluoride 99%-99.999% from Metall Rare Earth Limited |url=http://www.metall.com.cn/yf.htm |access-date=2023-12-24 |website=www.metall.com.cn |archive-date=2023-12-24 |archive-url=https://web.archive.org/web/20231224172242/http://www.metall.com.cn/yf.htm |url-status=live }}</ref> and ceramics.

==Hazards==
Conditions/substances to avoid are: ], active metals and ].

==References==
<references />

{{Yttrium compounds}}
{{fluorine compounds}}

]
]
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