Chlorine fluoride

A chlorine fluoride is an interhalogen compound containing only chlorine and fluorine.

| ClF | ClF3 | ClF5

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Systematic name | Chlorine monofluoride | Chlorine trifluoride | Chlorine pentafluoride
Molar mass | 54.45 g/mol  | 92.45 g/mol  | 130.45 g/mol
CAS number | 7790-89-8[1] | 7790-91-2[2] | 13637-63-3[3]
Melting point | −155.6 °C  | −76.3 °C  | −103 °C
Boiling point | −100 °C  | 11.8 °C  | −13.1 °C
Standard enthalpy
of formation ΔfH°gas | −50.29 kJ/mol  | −158.87 kJ/mol  | −238.49 kJ/mol
Standard molar entropy
S°gas | 217.91 J·K−1·mol−1 | 281.59 J·K−1·mol−1 | 310.73 J·K−1·mol−1
Heat capacity Cp | 33.01 J·K−1·mol−1 | 60.40 J·K−1·mol−1 | 89.16 J·K−1·mol−1

## References

[edit]

1. ^ "Chlorine fluoride (ClF)". CAS Common Chemistry.
2. ^ "Chlorine trifluoride". CAS Common Chemistry.
3. ^ "Chlorine fluoride (ClF5)". CAS Common Chemistry.

## External links

[edit]

* National Pollutant Inventory - Fluoride compounds fact sheet
* NIST Standard Reference Database
* WebElements