halons
Banned flame fighters
Halons are chemical compounds containing bromine and fluorine, used primarily in fire extinguishers.
They work by interrupting combustion at the chemical level, making them highly effective against fires in enclosed spaces like aircraft and computer rooms.
Because halons deplete the ozone layer, their production has been largely phased out under international agreements, though existing supplies remain in use for critical applications.
Bonded with reactive nonmetals
- halocarbonsCarbon compounds containing halogens
- bromineElement thirty-five, liquid halogen
- fluorinePale yellow halogen gas
- carbonSixth element, atomic symbol C
molecules · atoms · covalent · bonding · synthesis · organic · gaseous · inert
Protective atmospheric layer destruction
- stratosphericExtremely high up
- ozone layerAtmospheric UV filter
- phaseoutGradual discontinuation process
- bannedOfficially disallowed
atmospheric · persistent · photolysis · UV radiation · ozone hole · Antarctica · troposphere · greenhouse gas
Putting out active flames
- extinguishingCausing to stop burning
- fire extinguishersDevices for dousing flames
- nonflammableUnable to burn
- portableAble to be carried
aircraft · server rooms · discharge · engine compartments · military · aviation · marine · electrical fires
Synthetic cooling-system gases
- water mistAtomized liquid vapor
- inert gasChemically unreactive element
- argonUnreactive element eighteen
- nitrogenElement seven, colorless gas
replacement · substitute · transition · retrofit · next-generation · environmentally friendly
Gradual discontinuation process
- banned substancesMaterials forbidden by law
- EPAFederal environmental regulator
- Clean Air ActFederal pollution standards law
- international agreementPact among sovereign nations
compliance · restrictions · stockpiling · reclamation · recycling · alternatives · enforcement
halogenated
Bonded with reactive nonmetals
- halocarbonsCarbon compounds containing halogens
- bromineElement thirty-five, liquid halogen
- fluorinePale yellow halogen gas
carbon · molecules · atoms · covalent · bonding · synthesis · organic · gaseous · inert · stability
ozone depletion
Protective atmospheric layer destruction
- stratosphericExtremely high up
- ozone layerAtmospheric UV filter
- phaseoutGradual discontinuation process
banned · atmospheric · persistent · photolysis · UV radiation · ozone hole · Antarctica · troposphere · greenhouse gas · climate impact
fire-suppression
Putting out active flames
- extinguishingCausing to stop burning
- fire extinguishersDevices for dousing flames
- nonflammableUnable to burn
portable · aircraft · server rooms · discharge · engine compartments · military · aviation · marine · electrical fires
HFCs
Synthetic cooling-system gases
- water mistAtomized liquid vapor
- inert gasChemically unreactive element
- argonUnreactive element eighteen
nitrogen · replacement · substitute · transition · retrofit · next-generation · environmentally friendly
phaseout
Gradual discontinuation process
- banned substancesMaterials forbidden by law
- EPAFederal environmental regulator
- Clean Air ActFederal pollution standards law
international agreement · compliance · restrictions · stockpiling · reclamation · recycling · alternatives · enforcement
- Ozoneozone, ozone layer, ozone hole, ozone depletion, stratospheric ozone
- fluorine compoundsfluoride, sodium fluoride, difluoride, hexafluoride, fluorocarbon
- halogenated compoundscarbon tetrachloride, dichloromethane, chloroform, trichloroethylene, vinyl chloride
- haloalkaneschloromethane, chloroethane, chloroform, dichloromethane, carbon tetrachloride