chromium(II) fluoride

{{chembox

| Watchedfields = changed

| Name = Chromium(II) fluoride

| OtherNames = chromium difluoride, chromium fluouride, chromous fluoride

| ImageFile = Rutile structure.png

| ImageSize =

| ImageCaption = {{Color box|#999999|border=darkgray}} Cr²⁺ {{Color box|#ff2200|border=darkgray}} F⁻

|Section1={{Chembox Identifiers

| PubChem = 66229

| ChemSpiderID = 59614

| EINECS = 233-168-0

| SMILES = [F-].[F-].[Cr+2]

| StdInChI = 1S/Cr.2FH/h;2*1H/q+2;;/p-2

| StdInChIKey = RNFYGEKNFJULJY-UHFFFAOYSA-L

| CASNo = 10049-10-2

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 53XZY98IXY

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|Section2={{Chembox Properties

| Cr=1 | F=2

| Appearance = blue-green iridescent crystals{{cite book |last=Perry|first=Dale L.|date=2011|title=Handbook of Inorganic Compounds, Second Edition|page=120|url=https://books.google.com/books?id=SFD30BvPBhoC|location=Boca Raton, Florida|publisher=CRC Press|isbn=978-1-43981462-8|access-date=2014-01-10}}
hygroscopic, turns to Cr₂O₃ when heated in air

| Density = 3.79 g/cm³

| MeltingPtC = 894

| MeltingPt_ref =

| BoilingPt= >

| BoilingPtC = 1300

| BoilingPt_ref =

| Solubility = 76.7 g/100 mL

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|Section3={{Chembox Structure

| CrystalStruct = monoclinic

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|Section4={{Chembox Thermochemistry

| DeltaHf = −8.645 kJ/g (solid)

| DeltaHc =

| Entropy =

| HeatCapacity =

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|Section7={{Chembox Hazards

| GHSPictograms = {{GHS05}}{{GHS07}}

| GHSSignalWord = Danger

| HPhrases = {{H-phrases|314}}

| PPhrases = {{P-phrases|260|264|280|301+330+331|303+361+353|304+340|305+351+338|310|321|363|405|501}}

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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.Merck Index, 14 ed. entry 2245