Bromochlorodifluoromethane

Bromochlorodifluoromethane
Names
	Preferred IUPAC name Bromo(chloro)difluoromethane
	Other names Bromochlorodifluoromethane; Halon 1211; Halon 1211 BCF; BCF; Freon 12B1
Identifiers
CAS Number	353-59-3 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:84698 ;
ChemSpider	9248 ;
ECHA InfoCard	100.005.944
EC Number	206-537-9;
PubChem CID	9625;
UNII	91I5X8AJXS ;
CompTox Dashboard (EPA)	DTXSID0027147 ;
	InChI InChI=1S/CBrClF2/c2-1(3,4)5 Key: MEXUFEQDCXZEON-UHFFFAOYSA-N ; InChI=1/CBrClF2/c2-1(3,4)5;
	SMILES BrC(Cl)(F)F;
Properties
Chemical formula	CBrClF2
Molar mass	165.36 g/mol
Appearance	Colorless gas
Density	7,1362 kg·m−3 (15 °C, 1 bar)
Melting point	−159.5 °C (−255.1 °F; 113.6 K)
Boiling point	−3.7 °C (25.3 °F; 269.4 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Bromochlorodifluoromethane (BCF), also referred to by the code numbers Halon 1211 and Freon 12B1, is a haloalkane with the chemical formula C F₂Cl Br. It is used for fire suppression, especially for expensive equipment or items that could be damaged by the residue from other types of extinguishers. It is stored as a liquid under pressure and vaporizes when discharged to suppress fires. The use of halons, including Halon 1211, has decreased over time due to their adverse impact on the ozone layer. Alternatives have been developed to mitigate environmental concerns while still providing effective fire suppression capabilities.

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