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Chlorine pentafluoride is an interhalogen compound with formula ClF 5. This colourless gas is a strong oxidant that was once a candidate oxidizer for rockets. The molecule adopts a square pyramidal structure with C 4v symmetry, [1] as confirmed by its high-resolution 19 F NMR spectrum. [2] It was first synthesized in 1963. [3]
Chlorine trifluoride: Chlorine pentafluoride: Molar mass: 54.45 g/mol 92.45 g/mol 130.45 g/mol CAS number: Melting point: −155.6 °C −76.3 °C −103 °C Boiling point: −100 °C 11.8 °C −13.1 °C Standard enthalpy of formation Δ f H° gas: −50.29 kJ/mol −158.87 kJ/mol −238.49 kJ/mol Standard molar entropy S° gas
Chlorine pentafluoride: ClF 5: −13.1 −103 130.5 13637-63-3 ... Difluoroaminosulfinyl fluoride F 2 NS(O)F is a gas but decomposes over several hours [144]
Bromine pentafluoride, BrF 5; Chlorine pentafluoride, ClF 5; Chromium pentafluoride, CrF 5; Gold pentafluoride, Au 2 F 10; Iodine pentafluoride, IF 5; Iridium pentafluoride, IrF 5; Manganese pentafluoride, MnF 5 (predicted) Molybdenum pentafluoride, MoF 5; Niobium pentafluoride, NbF 5; Nitrogen pentafluoride, NF 5 (hypothetical) Neptunium ...
Molar mass: 102.4496 g/mol Appearance ... is a reactive gas with the chemical formula ClO ... In comparison with chlorine pentafluoride and bromine pentafluoride, ...
Chlorine trifluoride is particularly noteworthy—readily fluorinating asbestos and refractory oxides—and may be even more reactive than chlorine pentafluoride. Used industrially, ClF 3 requires special precautions similar to those for fluorine gas because of its corrosiveness and hazards to humans. [97] [98]
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, Cl 2 and F 2. [1]
Chlorine pentafluoride (ClF 5) is made on a large scale by direct fluorination of chlorine with excess fluorine gas at 350 °C and 250 atm, and on a small scale by reacting metal chlorides with fluorine gas at 100–300 °C. It melts at −103 °C and boils at −13.1 °C.