Bromodifluoromethane
Bromodifluoromethane or Halon 1201 or FC-22B1 is a gaseous trihalomethane or a hydrobromofluorocarbon.
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| Names | |
|---|---|
| Preferred IUPAC name
Bromo(difluoro)methane | |
| Other names
Bromodifluoromethane Difluorobromomethane Halon 1201 HBFC-22B1 FC-22B1 R-22B1 FM-100 | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.014.681 |
| EC Number |
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PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| CHBrF2 | |
| Molar mass | 130.92 g/mol |
| Appearance | Gas |
| Density | 1.55 g/cm3 at 16 °C |
| Melting point | −145 °C (−229 °F; 128 K) |
| Boiling point | −14.6 °C (5.7 °F; 258.5 K) |
| Insoluble | |
| Solubility | Alcohol, diethyl ether |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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| Infobox references | |
Synthesis
It can be prepared be reaction of hydrogen and dibromodifluoromethane at temperature in range 400–600 °C.[1]
Critical point data: Tc = 138.83 °C (411.98 K); pc = 5.2 MPa (51.32 bar); Vc = 0.275 dm3.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.
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References
- "Method for the production of bromodifluoromethane". Archived from the original on 2007-10-14. Retrieved 2007-05-24.
External links
- Ogata T, Kuwano S, Oe S (September 1997). "Microwave Spectrum, Nuclear Quadrupole Coupling Constants, and Structure of Bromodifluoromethane". J Mol Spectrosc. 185 (1): 147–52. doi:10.1006/jmsp.1997.7381. PMID 9344805.
- Cox R.A.; Simmons R.F. (1971). "The kinetics of the gas-phase thermal decomposition of bromodifluoromethane". J. Chem. Soc. B: 1625–31. doi:10.1039/J29710001625.
- Plyler E.K.; Acquista N. (January 1952). "Infrared Absorption Spectra of Five Halomethanes" (PDF). Journal of Research of the National Bureau of Standards. 48 (1): 92–7. doi:10.6028/jres.048.012. Research Paper 2290. Archived from the original (PDF) on 2006-10-06. Retrieved 2007-05-24.
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