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Names | |
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IUPAC name
Chromium(IV) fluoride | |
Other names
Chromium fluoride, Chromium tetrafluoride | |
Identifiers | |
3D model (JSmol) |
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PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
CrF4 | |
Molar mass | 127.9897 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 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. It has a dark greenish-black color when solid. It rapidly hydrolysizes in presence of moisture in air or directly in water.[3]
Powdered chromiumorCrCl3 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]
Chromium(IV) fluoride will react with water:
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Chromium(0) |
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Chromium(I) |
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Chromium(II) |
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Chromium(II, III) |
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Chromium(III) |
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Chromium(IV) |
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Chromium(V) |
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Chromium(VI) |
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Polyatomic ion |
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