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Praseodymium(III) fluoride

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Praseodymium(III) fluoride
Names
Other names Praseodymium trifluoride
Identifiers
CAS Number	13709-46-1^Y
3D model (JSmol)	Interactive image
ChemSpider	75500
ECHA InfoCard	100.033.853
EC Number	237-254-9
PubChem CID	50925288
UNII	X3MG2Y9URW^Y
CompTox Dashboard(EPA)	DTXSID2065593
InChI InChI=1S/3FH.Pr/h3*1H;/q;;;+3/p-3 Key: BOTHRHRVFIZTGG-UHFFFAOYSA-K
SMILES [F-].[F-].[F-].[Pr+3]
Properties
Chemical formula	PrF₃
Appearance	green crystalline solid
Density	6.267 g·cm⁻³^[1]
Melting point	1370 °C^[2]
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301,H311,H315,H319,H331,H335,H413
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chemical compound

Praseodymium(III) fluoride is aninorganic compound with theformula PrF₃, being the most stablefluoride ofpraseodymium.

Preparation

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The reaction betweenpraseodymium(III) nitrate andsodium fluoride will obtain praseodymium(III) fluoride as a green crystalline solid:^[3]

Pr(NO₃)₃ + 3 NaF → 3 NaNO₃ + PrF₃

There are also literature reports on the reaction betweenchlorine trifluoride and various oxides of praseodymium (Pr₂O₃, Pr₆O₁₁ and PrO₂), where praseodymium(III) fluoride is the only product. The reaction betweenbromine trifluoride and praseodymium oxide left in the air for a period of time also produces praseodymium(III) fluoride, but the reaction is incomplete; the reaction betweenpraseodymium(III) oxalate hydrate and bromine trifluoride can obtain praseodymium(III) fluoride, and carbon is also produced from this reaction.^[4] Praseodymium(III) fluoride can also be obtained by reacting praseodymium oxide andsulfur hexafluoride at 584 °C.^[5]

Properties

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Physical

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Praseodymium(III) fluoride forms pale green crystals of trigonal system^[6] (or hexagonal system^[7]), space group P 3c1,^[6] (or P 6/mcm^[7]), cell parametersa = 0.7078 nm,c = 0.7239 nm, Z = 6, structure likecerium(III) fluoride (CeF₃).

Chemical

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Praseodymium(III) fluoride is a green, odourless, hygroscopic solid that is insoluble in water.^[8]

Uses

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Praseodymium(III) fluoride is used as a doping material for laser crystals.^[9]

References

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^E. A. Krivandina, Z. I. Zhmurova, B. P. Sobolev, T. M. Glushkova, D. F. Kiselev, M. M. Firsova, A. P. Shtyrkova (October 2006). "Growth of R 1 − y Sr y F3 − y crystals with rare earth elements of the cerium subgroup (R = La, Ce, Pr, or Nd; 0 ≤ y ≤ 0.16) and the dependence of their density and optical characteristics on composition".Crystallography Reports.51 (5):895–901.doi:10.1134/S106377450605021X.ISSN 1063-7745.S2CID 189794019.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^H. von Wartenberg. The melting points of neodymium and praseodymium fluorides.Naturwissenschaften, 1941. 29: 771.ISSN 0028-1042.
^Lin Ma, Wei-Xiang Chen, Yi-Fan Zheng, Jie Zhao, Zhude Xu (May 2007)."Microwave-assisted hydrothermal synthesis and characterizations of PrF3 hollow nanoparticles".Materials Letters.61 (13):2765–2768.doi:10.1016/j.matlet.2006.04.124. Retrieved2019-03-26.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^Popov, Alexander I.; Glockler, George (Mar 1952)."Observations on the Fluorination of Praseodymium and Neodymium Compounds".Journal of the American Chemical Society.74 (5):1357–1358.Bibcode:1952JAChS..74R1357P.doi:10.1021/ja01125a521.ISSN 0002-7863.
^OPALOVSKII, A. A.; LOBKOV, E. U.; ERENBURG, B. G.; ZAKHAR'EV, YU. V.; SHINGAREV, V. G. (1973-01-16)."ChemInform Abstract: RK. VON SF6 MIT SELTENERDMETALLOXIDEN".Chemischer Informationsdienst.4 (3).doi:10.1002/chin.197303045.ISSN 0009-2975.
^^a ^bКнунянц И.Л. и др., ed. (1995).Химическая энциклопедия. Vol. 4. М.m: Советская энциклопедия.ISBN 5-85270-092-4.
^^a ^bНикольский Б.П. и др., ed. (1966).Справочник химика. Vol. 1 (2-е изд., испр ed.). М.-Л.: Химия.
^Praseodymium(III) fluoride at AlfaAesar, accessed on 2023-12-22 (PDF) (JavaScript required).^{[dead link]}
^Shalibeik, Hotan (2007).Rare-earth-doped fiber lasers and amplifiers (1. Aufl ed.). Göttingen: Cuvillier.ISBN 978-3-86727-467-8.