Chlorofluoride

Structural formula
General
Surname	Chlorofluoride
other names	Chlorine monofluoride
Molecular formula	ClF
Brief description	colorless gas
External identifiers / databases
CAS number 7790-89-8 EC number 232-229-9 ECHA InfoCard 100.029.300 PubChem 123266 Wikidata Q417146
properties
Molar mass	54.451 g mol −1
Physical state	gaseous
density	2.23 g l −1 (gas at 25 ° C) 1.62 g cm −3 (liquid at −100 ° C)
Melting point	−155.6 ° C
boiling point	−101.1 ° C
safety instructions
GHS hazard labeling no classification available
Thermodynamic properties
ΔH f 0	−50 kJ / mol (gas)
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Chlorofluoride is an interhalogen compound that consists of the elements chlorine and fluorine . Like most interhalogens and all chlorofluorides, it is extremely reactive. It was discovered by Otto Ruff in 1928 .

Extraction and presentation

Chlorofluoride can be produced by heating a mixture of elemental chlorine and fluorine to 250 ° C in the presence of copper shavings.

${\displaystyle \mathrm {Cl_{2}+F_{2}\longrightarrow 2\ ClF} }$

It is also possible to display it by reacting chlorine trifluoride with chlorine.

${\displaystyle \mathrm {ClF_{3}+Cl_{2}\longrightarrow 3\ ClF} }$

Properties and use

Chlorofluoride is colorless as a solid and as a gas; as a liquid, it is pale yellow in color. It reacts violently with water , metals and many organic compounds under the appearance of fire; Glass attacks it with the formation of explosive chlorine oxides . Chlorofluoride can be used as a medium strength fluorinating reagent .

Individual evidence

1. ^ ^{A b c} A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 101st edition. Walter de Gruyter, Berlin 1995, ISBN 3-11-012641-9 , p. 466.
2. ^ ^{A b c} Mary Lide, David R. Lide: CRC Handbook of Chemistry and Physics . 87th Edition, CRC Press, 1998, ISBN 978-0-84930594-8 , pp. 4-58.
3. ^ ^{A b} J. E. Macintyre, FM Daniel, VM Stirling: Dictionary of inorganic compounds. CRC Press, 1992, ISBN 978-0-41230120-9 , p. 2829.
4. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
5. ↑ Erwin Riedel, Christoph Janiak: Inorganic Chemistry . 9th edition. Walter de Gruyter GmbH, Berlin 2015, ISBN 978-3-11-035526-0 , p. 431 .
6. ↑ Entry on chlorofluoride. In: Römpp Online . Georg Thieme Verlag, accessed on May 26, 2014.
7. ↑ Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 166.
8. ↑ Wissenschaft-Online-Lexika: Entry on chlorofluorides in the Lexikon der Chemie ; Retrieved June 4, 2009.