Chromium(II) fluoride

Chromium(II) fluoride

  Cr2+   F
Names
Other names
chromium difluoride, chromium fluouride, chromous fluoride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.140 Edit this at Wikidata
EC Number
  • 233-168-0
UNII
  • InChI=1S/Cr.2FH/h;2*1H/q+2;;/p-2
    Key: RNFYGEKNFJULJY-UHFFFAOYSA-L
  • [F-].[F-].[Cr+2]
Properties
CrF2
Molar mass 89.9929 g·mol−1
Appearance blue-green iridescent crystals[1]
hygroscopic, turns to Cr2O3 when heated in air[1]
Density 3.79 g/cm3[1]
Melting point 894 °C (1,641 °F; 1,167 K)[1]
Boiling point > 1,300 °C (2,370 °F; 1,570 K)[1]
76.7 g/100 mL
Structure
monoclinic[1]
Thermochemistry
-8.645 kJ/g (solid)
Hazards
GHS labelling:
GHS05: CorrosiveGHS07: Exclamation mark
Danger
H314
P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Chromium(II) fluoride is an inorganic compound with the formula CrF2. It exists as a blue-green iridescent solid. Chromium(II) fluoride is sparingly soluble in water, almost insoluble in alcohol, and is soluble in boiling hydrochloric acid, but is not attacked by hot distilled sulfuric acid or nitric acid. Like other chromous compounds, chromium(II) fluoride is oxidized to chromium(III) oxide in air.[2]

  1. ^ a b c d e f Perry, Dale L. (2011). Handbook of Inorganic Compounds, Second Edition. Boca Raton, Florida: CRC Press. p. 120. ISBN 978-1-43981462-8. Retrieved 2014-01-10.
  2. ^ Merck Index, 14 ed. entry 2245