Dibromodifluoromethane is a mixed

halomethane Halomethane compounds are derivatives of methane () with one or more of the hydrogen atoms replaced with halogen atoms (Fluorine, F, Chlorine, Cl, Bromine, Br, or Iodine, I). Halomethanes are both naturally occurring, especially in marine environm ...

. It is a colorless non-flammable liquid. Along with Halons

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, 2402, and

1301 Year 1301 ( MCCCI) was a common year starting on Sunday of the Julian calendar. Events January– March * January 14 – With the death of King Andrew III ("Andrew the Venetian") after a short illness, possibly from poisoning, the � ...

, it is one of the most effective

fire extinguishers A fire extinguisher is a handheld active fire protection device usually filled with a dry or wet chemical used to extinguish or control small fires, often in emergencies. It is not intended for use on an out-of-control fire, such as one which h ...

, however, it is also very toxic. It is a class I

ozone depleting substance Ozone depletion consists of two related events observed since the late 1970s: a lowered total amount of ozone in Earth's upper atmosphere, and a much larger springtime decrease in stratospheric ozone (the ozone layer) around Earth's polar regio ...

(ODS).

Synthesis

Dibromodifluoromethane can be obtained by vapor phase bromination of

difluoromethane Difluoromethane, also called HFC-32 is an organofluorine compound with the formula CH2F2. It is a colorless gas that is used as a refrigerant. Synthesis Difluoromethane is produced by the reaction of dichloromethane and hydrogen fluoride (H ...

. It is also formed during the fluorination of

carbon tetrabromide Carbon tetrabromide, CBr4, also known as tetrabromomethane, is a bromide of carbon Carbon () is a chemical element; it has chemical symbol, symbol C and atomic number 6. It is nonmetallic and tetravalence, tetravalent—meaning that its ...

Table of physical properties

References

External links

* *
Photolysis of dibromodifluoromethane at 265 nm

Raman and infrared spectra of solid dibromodifluoromethane
{{fluorine compounds Halomethanes Fire suppression agents Bromofluoroalkanes Ozone-depleting chemical substances