Bromochlorodifluoromethane
Encyclopedia : B : BR : BRO : Bromochlorodifluoromethane
Bromochlorodifluoromethane, also known by the trade name Halon 1211, or BCF, or Halon 1211 BCF, or Freon 12B1, is a haloalkane with the chemical formula is CF2ClBr.
It was first introduced during World War II as fire extinguisher for tanks. Within such small confinement, it is important that the single fire spark would not react with the extinguisher to explosion effect. It was introduced as an effective gaseous fire suppression agent in the 1960s for use around highly valuable materials in places such as museums, mainframe rooms, and telecommunication switching centers. The production of bromochlorodifluoromethane and similar chlorofluorocarbons has been banned in most countries since January 1, 1994 as part of the Montreal Protocol on ozone depleting substances.
This is a volatile extinguishant that should be used only with a breathing apparatus (when volume exceeds 5%).
See also
External links
- [International Chemical Safety Card 0635] -->
- Institut national de recherche et de sécurité (1988). "[Bromochlorodifluorométhane.]" Fiche toxicologique n° 165. Paris:INRS. (PDF file, in French)
- For a full list of external links to MSDSs, spectroscopic data, commercial chemicals suppliers etc. for this compound, see [Chemical sources].
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.