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Bromotrifluoromethane, commonly referred to by the code numbers Halon 1301, R13B1, Halon 13B1 or BTM, is an organic halide with the chemical formula C Br F 3. It is used for gaseous fire suppression as a far less toxic alternative to bromochloromethane .
Bromochlorodifluoromethane (BCF), also referred to by the code numbers Halon 1211 and Freon 12B1, is a haloalkane with the chemical formula C F 2 Cl 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. [ 1 ]
Bromochloromethane or methylene bromochloride and Halon 1011 is a mixed halomethane. It is a heavy low-viscosity liquid with refractive index 1.4808. Halon 1011 was invented for use in fire extinguishers in Germany during the mid-1940s, in an attempt to create a less toxic, more effective alternative to carbon tetrachloride .
Tribromofluoromethane [1] or Halon 1103 or R 11B3 is a fully halogenated mixed halomethane or, more exactly, a bromofluorocarbon (BFC). It is a colorless to yellow liquid. [2] Tribromofluoromethane can be used in fire extinguishers.
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This method is used for the production of the mono-chloride, -bromide, and -iodide. CH 3 OH + HCl → CH 3 Cl + H 2 O 4 CH 3 OH + 3 Br 2 + S → 4 CH 3 Br + H 2 SO 4 + 2 HBr 3 CH 3 OH + 3 I 2 + P → 3 CH 3 I + HPO(OH) 2 + 3 HI. Halogen exchange. The method is mainly used to produce fluorinated derivatives from the chlorides. CH 3 Cl + HF → ...