Chromium(IV) fluoride
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| Chromium(IV) fluoride | ||
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| IUPAC name Chromium(IV) fluoride | ||
| Other names Chromium fluoride, Chromium tetrafluoride | ||
| Identifiers | ||
| CAS number | 10049-11-3 | |
| PubChem | 57346073 | |
| Jmol-3D images | {{#if:[Cr+4].[F-].[F-].[F-].[F-]|Image 1 | |
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| Properties | ||
| Molecular formula | CrF4 | |
| Molar mass | 127.99 g mol−1 | |
| Appearance | green crystals,[1] amorphous brown beads[2] | |
| Density | 2.89 g/cm3[1] | |
| Melting point | 277 °C[1] | |
| Boiling point | ~400°C[2] | |
| Solubility in water | reacts with water[1] | |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
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
- ↑ 1.0 1.1 1.2 1.3 Perry, Dale L. (2011). Handbook of Inorganic Compounds, Second Edition. Boca Raton, Florida: CRC Press. p. 125. ISBN 978-1-43981462-8. Retrieved 10-01-2014.
- ↑ 2.0 2.1 2.2 Brauer, Georg (1963) [1960]. Handbuch Der Präparativen Anorganischen Chemie [Handbook of Preparative Inorganic Chemistry] (in German) 1. Stuttgart; New York, New York: Ferdinand Enke Verlag; Academic Press, Inc. p. 258. ISBN 978-0-32316127-5. Retrieved 01-12-2014.
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