Bromodifluoromethane Explained

Bromodifluoromethane or Halon 1201 or FC-22B1 is a gaseous trihalomethane or a hydrobromofluorocarbon.

Synthesis

It can be prepared through the reaction of hydrogen and dibromodifluoromethane at temperature in range 400–600 °C.^[1]

Critical point data: T_c = 138.83 °C (411.98K); p_c = 5.2MPa (51.32bar); V_c = 0.275dm³·mol⁻¹.

Applications

Bromodifluoromethane was used as a refrigerant and in fire extinguishers. It is a class I ozone depleting substance with ozone depletion potential ODP = 0.74. It was banned by Montreal Protocol in 1996.

References

1. Web site: Method for the production of bromodifluoromethane . 2007-05-24 . https://web.archive.org/web/20071014012004/http://www.wipo.int/pctdb/en/wo.jsp?wo=1991009000 . 2007-10-14 . dead .

External links

• Ogata T, Kuwano S, Oe S . Microwave Spectrum, Nuclear Quadrupole Coupling Constants, and Structure of Bromodifluoromethane . J Mol Spectrosc . 185 . 1 . 147–52 . September 1997 . 9344805 . 10.1006/jmsp.1997.7381 . 1997JMoSp.185..147O .
• Cox R.A. . Simmons R.F. . The kinetics of the gas-phase thermal decomposition of bromodifluoromethane . J. Chem. Soc. B . 1625–31 . 1971 . 10.1039/J29710001625 .
• Plyler E.K. . Acquista N. . Infrared Absorption Spectra of Five Halomethanes . Journal of Research of the National Bureau of Standards . 48 . 1 . 92–7 . January 1952 . Research Paper 2290 . 10.6028/jres.048.012 . free .