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	48295219;
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.

Synthesis

Zirconium difluoride can be prepared by the action of atomic hydrogen on thin layers of zirconium tetrafluoride, at a temperature of approximately 350°.^[1]

Physical properties

ZrF₂ forms black crystals of orthorhombic system, cell parameters a = 0.409 nm, b = 0.491 nm, c = 0.656 nm.^[1]

The compound readily ignites and burns to form zirconium dioxide.^[1]

Chemical properties

ZrF₂ disproportionates when heated to 800 °C:^[1]

2ZrF₂ → ZrF₄ + Zr

References

^ ^a ^b ^c ^d 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.

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[AJC-1] 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.

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