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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Halons
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INFOTEXT
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1992-09-02
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526b
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14 lines
In chemistry, compounds containing one or two
carbon atoms, together with bromine and other
halogens. The most commonly used are halon
1211 (bromochlorodifluoromethane) and halon
1301 (bromotrifluoromethane). The halons are
gases and are widely used in fire
extinguishers. As destroyers of the ozone
layer, they are up to ten times more
effective than chlorofluorocarbons, to which
they are chemically related. Levels in the
atmosphere are rising by about 25% each year,
mainly through the testing of fire-fighting
equipment.