Bromofluorocarbon

Bromofluorocarbons (BFCs) are molecules based on carbon, bromine, and fluorine.

BFCs attack the ozone layer even more aggressively than chlorofluorocarbons (CFCs),[2] and are powerful greenhouse gases, although due to shorter atmospheric lifetimes not as powerful as equivalent perfluorocarbons or chlorofluorocarbons.

As production of BFCs was banned by the Montreal Protocol,[1] remaining use depends on old inventories and on recycling.

In a fire, in addition to physically excluding oxygen, the molecules liberate bromine radicals which interfere with combustion reactions.

BFCs tend to have higher melting and boiling points than comparable fully fluorinated molecules.

A sailor in coveralls wipes down red gas bottles
A Halon fire suppression system in a U.S. Navy ship's machinery room