Chlorine fluorides

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A chlorine fluoride is a compound containing only chlorine and fluorine.

  ClF ClF3 ClF5
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] [7790-91-2] [13637-63-3]
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

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