Zirconium (IV) fluoride

Crystal structure
	__ Zr 4+ __ F -
Crystal system	monoclinic
Space group	I 2 / c (No. 15, position 6)
Lattice parameters	a = 957 pm ; b = 993 pm ; c = 773 pm ; β = 94.28 °
General
Surname	Zirconium (IV) fluoride
other names	Zirconium tetrafluoride
Ratio formula	ZrF 4
Brief description	white solid
External identifiers / databases
ECHA InfoCard	100.029.107
PubChem	82216
Wikidata	Q2256447
properties
Molar mass	167.22 g mol −1
Physical state	firmly
density	4.43 g cm −3
Melting point	910 ° C
Refractive index	1.59
safety instructions
GHS labeling of hazardous substances danger
H and P phrases	H: 314
	P: 280-305 + 351 + 338-310
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Zirconium (IV) fluoride is an inorganic chemical compound of zirconium from the group of fluorides .

Extraction and presentation

Zirconium (IV) fluoride can be obtained by reacting zirconium (IV) chloride with hydrogen fluoride .

{\ displaystyle \ mathrm {ZrCl_ {4} +4 \ HF \ longrightarrow ZrF_ {4} +4 \ HCl}}

It is also possible to display it by reacting zirconium (IV) oxide with hydrofluoric acid

{\ displaystyle \ mathrm {ZrO_ {2} +4 \ HF \ longrightarrow ZrF_ {4} +2 \ H_ {2} O}}

or thermal decomposition of (NH ₄ ) ₂ ZrF ₆ .

properties

Zirconium (IV) fluoride is a white, highly refractive, translucent mass that is sparingly soluble in water. From 50 ° C upwards, the compound hydrolyzes in water. The anhydrate has a monoclinic crystal structure with the space group I 2 / a (space group No. 15, position 3) , whereby in addition to the stable β-form there is also a tetragonal α-form ( space group P 4 ₂ / m (No. 84) ) and a γ-form exist. The β-form consists of square antiprisms ZrF ₈ ; each fluorine atom coordinates two zirconium atoms. The trihydrate has a dimeric structure with a triclinic crystal structure. The monohydrate has a tetragonal crystal structure with the space group I 4 2 d (No. 122) . Template: room group / 15.3 Template: room group / 84Template: room group / 122

use

Zirconium (IV) fluoride is used as a raw material for the manufacture of optical glass fibers and optical glasses, especially for IR spectrometry. It is also used as an admixture to nuclear fuels.

Individual evidence

↑ C. Legein, F Fayon, C. Martineau, M. Body, JY Buzare, D. Massiot, E. Durand, A. Tressaud, A. Demourgues, O. Peron, B. Boulard: ¹⁹ F high magnetic field NMR study of beta-ZrF ₄ and CeF ₄ : From spectra reconstruction to correlation between fluorine sites and ¹⁹ F isotopic chemical shifts . In: Inorganic Chemistry , 2006 , 45 (26) , pp. 10636-10641 doi : 10.1021 / ic061339a .
↑ ^a ^b ^c ^d ^e ^f data sheet Zirconium (IV) fluoride, 99.9% trace metals basis from Sigma-Aldrich , accessed on October 13, 2013 ( PDF ).
↑ Data sheet zirconium (IV) fluoride from AlfaAesar, accessed on October 13, 2013 ( PDF )(JavaScript required) .
↑ ^a ^b ^c ^d Georg Brauer , with the assistance of Marianne Baudler a . a. (Ed.): Handbook of Preparative Inorganic Chemistry . 3rd, revised edition. tape I . Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , pp. 260 .
^ R. Papiernik, D. Mercurio, B. Frit: Structure du tetrafluorure de zirconium, ZrF ₄ alpha . In: Acta Crystallographica , 1982 , B38 , pp. 2347-2353 doi : 10.1107 / S0567740882008760
^ Chemical Thermodynamics of Zirconium . Gulf Professional Publishing, 2005, ISBN 0-08-045753-3 , pp. 144 ( limited preview in Google Book search).
↑ Roger Blachnik (Ed.): Paperback for chemists and physicists . Volume III: Elements, Inorganic Compounds and Materials, Minerals . founded by Jean d'Ans, Ellen Lax. 4th, revised and revised edition. Springer, Berlin 1998, ISBN 3-540-60035-3 , pp. 818 ( limited preview in Google Book search).
↑ RL Davidovich, MA Pushilin, VB Logvinova, AV Gerasimenko: Crystal structure of monoclinic modifications of zirconium and hafnium tetrafluoride trihydrates. In: Journal of Structural Chemistry. 54, 2013, pp. 541-546, doi : 10.1134 / S0022476613030104 .
↑ B. Kojic-Prodic, F. Gabela, Z. Ruzic-Toros, M. Sljukic: Structure of aquatetrafluorozirconium (IV). In: Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 37, pp. 1963-1965, doi : 10.1107 / S0567740881007772 .
↑ Catherine E. Housecroft: Inorganic Chemistry . Pearson Education, 2005, ISBN 0-13-039913-2 , pp. 652 ( limited preview in Google Book search).
^ William S. Rees, Jr .: CVD of Nonmetals . John Wiley & Sons, 2008, ISBN 3-527-61480-X , pp. 370 ( limited preview in Google Book search).
↑ Dan Gabriel Cacuci: Handbook of Nuclear Engineering. Vol. 5: Fuel Cycles, Decommissioning, Waste Disposal and Safeguards . Springer, 2010, ISBN 0-387-98130-6 , pp. 2961 ( limited preview in Google Book search).

[1] C. Legein, F Fayon, C. Martineau, M. Body, JY Buzare, D. Massiot, E. Durand, A. Tressaud, A. Demourgues, O. Peron, B. Boulard: ¹⁹ F high magnetic field NMR study of beta-ZrF ₄ and CeF ₄ : From spectra reconstruction to correlation between fluorine sites and ¹⁹ F isotopic chemical shifts . In: Inorganic Chemistry , 2006 , 45 (26) , pp. 10636-10641 doi : 10.1021 / ic061339a .

[Sigma-2] ↑ ^a ^b ^c ^d ^e ^f data sheet Zirconium (IV) fluoride, 99.9% trace metals basis from Sigma-Aldrich , accessed on October 13, 2013 ( PDF ).

[Alfa-3] Data sheet zirconium (IV) fluoride from AlfaAesar, accessed on October 13, 2013 ( PDF )(JavaScript required) .

[brauer-4] Georg Brauer , with the assistance of Marianne Baudler a . a. (Ed.): Handbook of Preparative Inorganic Chemistry . 3rd, revised edition. tape I . Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , pp. 260 .

[5] R. Papiernik, D. Mercurio, B. Frit: Structure du tetrafluorure de zirconium, ZrF ₄ alpha . In: Acta Crystallographica , 1982 , B38 , pp. 2347-2353 doi : 10.1107 / S0567740882008760

[6] Chemical Thermodynamics of Zirconium . Gulf Professional Publishing, 2005, ISBN 0-08-045753-3 , pp. 144 ( limited preview in Google Book search).

[Jean_d’Ans,_Ellen_Lax,_Roger_Blachnik-7] Roger Blachnik (Ed.): Paperback for chemists and physicists . Volume III: Elements, Inorganic Compounds and Materials, Minerals . founded by Jean d'Ans, Ellen Lax. 4th, revised and revised edition. Springer, Berlin 1998, ISBN 3-540-60035-3 , pp. 818 ( limited preview in Google Book search).

[DOI10.1134/S0022476613030104-8] RL Davidovich, MA Pushilin, VB Logvinova, AV Gerasimenko: Crystal structure of monoclinic modifications of zirconium and hafnium tetrafluoride trihydrates. In: Journal of Structural Chemistry. 54, 2013, pp. 541-546, doi : 10.1134 / S0022476613030104 .

[DOI10.1107/S0567740881007772-9] B. Kojic-Prodic, F. Gabela, Z. Ruzic-Toros, M. Sljukic: Structure of aquatetrafluorozirconium (IV). In: Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 37, pp. 1963-1965, doi : 10.1107 / S0567740881007772 .

[Catherine_E._Housecroft-10] Catherine E. Housecroft: Inorganic Chemistry . Pearson Education, 2005, ISBN 0-13-039913-2 , pp. 652 ( limited preview in Google Book search).

[William_S._Rees,_Jr.-11] William S. Rees, Jr .: CVD of Nonmetals . John Wiley & Sons, 2008, ISBN 3-527-61480-X , pp. 370 ( limited preview in Google Book search).

[Dan_Gabriel_Cacuci-12] Dan Gabriel Cacuci: Handbook of Nuclear Engineering. Vol. 5: Fuel Cycles, Decommissioning, Waste Disposal and Safeguards . Springer, 2010, ISBN 0-387-98130-6 , pp. 2961 ( limited preview in Google Book search).