Zirconium difluoride

Zirconium difluoride

Names
IUPAC name difluorozirconium
Other names Zirconium(II) fluoride
Identifiers
CAS Number	13842-94-9
3D model (JSmol)	Interactive image
ChemSpider	123140
PubChem CID	139626
UNII	1XHF39056H
CompTox Dashboard (EPA)	DTXSID40160672
InChI InChI=1S/2FH.Zr/h2*1H;/q;;+2/p-2 Key: COSHNDIHSFYGTR-UHFFFAOYSA-L
SMILES F[Zr]F
Properties
Chemical formula	ZrF2
Appearance	black crystals
Density	3.6 g/cm3
Melting point	902
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Zirconium difluoride is an inorganic chemical compound with the chemical formula ZrF₂. ^{[1] [2]}

Synthesis

Zirconium difluoride can be prepared by the action of atomic hydrogen on thin layers of zirconium tetrafluoride, at a temperature of approximately 350°C. ^{[3] [4]}

Physical properties

ZrF₂ forms black crystals of the orthorhombic system, with unit cell parameters a = 0.409 nm, b = 0.491 nm, c = 0.656 nm. ^[3]

The compound readily ignites and burns to form zirconium dioxide. ^[3]

Chemical properties

ZrF₂ disproportionates when heated to 800 °C: ^[3]

2ZrF₂ → ZrF₄ + Zr

References

1. Meshri, Dayal T. (26 January 2001). "Fluorine Compounds, Inorganic, Zirconium". Kirk-Othmer Encyclopedia of Chemical Technology. Wiley. doi:10.1002/0471238961.2609180313051908.a01. ISBN   978-0-471-48494-3 . Retrieved 22 July 2024.
2. Hawkins, Donald T. (6 December 2012). Binary Fluorides: Free Molecular Structures and Force Fields A Bibliography (1957–1975). Springer Science & Business Media. p. 77. ISBN   978-1-4684-6147-3 . Retrieved 22 July 2024.
3. McTaggart, F. K.; Turnbull, A. G. (1964). "Zirconium difluoride" . Australian Journal of Chemistry . 17 (7): 727–730. doi:10.1071/ch9640727. ISSN   1445-0038 . Retrieved 19 July 2024.
4. Haupt, Axel (22 March 2021). Organic and Inorganic Fluorine Chemistry: Methods and Applications. Walter de Gruyter GmbH & Co KG. ISBN   978-3-11-065950-4 . Retrieved 22 July 2024.