Zirconium difluoride
Chemical compound
From Wikipedia, the free encyclopedia
Zirconium difluoride is an inorganic chemical compound with the chemical formula ZrF2.[1][2]
| Names | |
|---|---|
| IUPAC name
difluorozirconium | |
| Other names
Zirconium(II) fluoride | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| 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).
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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
