Chlorine monofluoride
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Chlorine monofluoride is a volatile interhalogen compound with the chemical formula ClF. It is a colourless gas at room temperature and is stable even at high temperatures. When cooled to −100 °C, ClF condenses as a pale yellow liquid. Many of its properties are intermediate between its parent halogens, Cl2 and F2.[1]
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
Chlorine monofluoride | |
Other names
Chlorine fluoride | |
Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.029.300 |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
ClF | |
Molar mass | 54.45 g/mol |
Density | 1.62 g mL (liquid, −100 °C) |
Melting point | −155.6 °C (−248.1 °F; 117.5 K) |
Boiling point | −100.1 °C (−148.2 °F; 173.1 K) |
Structure | |
0.881 D (2.94 × 10−30 C m) | |
Thermochemistry | |
Heat capacity (C) |
33.01 J K−1 mol−1 |
Std molar entropy (S⦵298) |
217.91 J K−1 mol−1 |
Std enthalpy of formation (ΔfH⦵298) |
−56.5 kJ mol−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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