Bromodifluoromethane

Bromodifluoromethane
Names

Preferred IUPAC name Bromo(difluoro)methane
Other names Bromodifluoromethane Difluorobromomethane Halon 1201 HBFC-22B1 FC-22B1 R-22B1 FM-100
Identifiers
CAS Number	1511-62-2^Y
3D model (Jmol)	Interactive image Interactive image
ChemSpider	56193^Y
ECHA InfoCard	100.014.681
EC Number	216-149-1
PubChem	62407
InChI InChI=1S/CHBrF2/c2-1(3)4/h1H^Y Key: GRCDJFHYVYUNHM-UHFFFAOYSA-N^Y InChI=1/CHBrF2/c2-1(3)4/h1H
SMILES C(F)(F)Br BrC(F)F
Properties
Chemical formula	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)
Solubility in water	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).
Y verify (what is ^YN ?)
Infobox references

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

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

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

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 2000.

References

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.

Halomethanes

Monosubstituted	CH₃F CH₃Cl CH₃Br CH₃I

Disubstituted	CH₂F₂ CH₂ClF CH₂BrF CH₂FI CH₂Cl₂ CH₂BrCl CH₂ClI CH₂Br₂ CH₂BrI CH₂I₂

Trisubstituted	CHF₃ CHClF₂ CHBrF₂ CHF₂I CHCl₂F CHBrClF CHClFI CHBr₂F CHBrFI CHFI₂ CHCl₃ CHBrCl₂ CHCl₂I CHBr₂Cl CHBrClI CHClI₂ CHBr₃ CHBr₂I CHBrI₂ CHI₃

Tetrasubstituted	CF₄ CClF₃ CBrF₃ CF₃I CCl₂F₂ CBrClF₂ CClF₂I CBr₂F₂ CBrF₂I CF₂I₂ CCl₃F CBrCl₂F CCl₂FI CBr₂ClF C*BrClFI CClFI₂ CBr₃F CBr₂FI CBrFI₂ CFI₃ CCl₄ CBrCl₃ CCl₃I CBr₂Cl₂ CBrCl₂I CCl₂I₂ CBr₃Cl CBr₂ClI CBrClI₂ CClI₃ CBr₄ CBr₃I CBr₂I₂ CBrI₃ CI₄

* Chiral compound.

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