Chromium(IV) fluoride

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Chromium(IV) fluoride
Names
IUPAC name
Chromium(IV) fluoride
Other names
Chromium fluoride, Chromium tetrafluoride
Identifiers
10049-11-3
Jmol-3D images Image
PubChem 57346073
Properties
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 (531 °F; 550 K)[1]
Boiling point ~ 400 °C (752 °F; 673 K)[2]
reacts with water[1]
Except where noted otherwise, data is 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[edit]

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[edit]

  1. ^ 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. 
  2. ^ a b c 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 2014-01-12.