Chromium(IV) fluoride
| Names | |
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| IUPAC name
Chromium(IV) fluoride
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| Other names
Chromium fluoride, Chromium tetrafluoride
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| Identifiers | |
3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| CrF4 | |
| Molar mass | 291.71 g/mol |
| Appearance | green crystals,[1] amorphous brown beads[2] |
| Density | 2.89 g/cm3[1] |
| Melting point | 277 °C (531 °F; 550 K)[1] |
| Boiling point | ~ 400 °C (752 °F; 673 K)[2] |
| reacts with water[1] | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chromium(IV) fluoride is an inorganic compound with the chemical formula CrF4.
Synthesis
Powdered chromium or CrCl3 is exposed to fluorine gas at a temperature of 350-500 °C, which creates a mix of CrF4 and CrF5. The CrF4 settles out as varnish-like brown beads upon cooling.[2]
References
- ^ a b c d Perry, Dale L. (2011). Handbook of Inorganic Compounds, Second Edition. Boca Raton, Florida: CRC Press. p. 125. ISBN 978-1-43981462-8. Retrieved 2014-01-10.
- ^ a b c Brauer, Georg (1963) [1960]. Handbuch Der Präparativen Anorganischen Chemie (in German). Vol. 1. Stuttgart; New York, New York: Ferdinand Enke Verlag; Academic Press, Inc. p. 258. ISBN 978-0-32316127-5. Retrieved 2014-01-12.
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