Editing Chlorofluorocarbon (section)

==Applications==
CFCs and HCFCs are used in various applications because of their low toxicity, reactivity and flammability.<ref>{{cite book |doi=10.1007/978-1-4615-4557-6_15 |chapter=Chlorofluorocarbons |title=Environmental Tracers in Subsurface Hydrology |date=2000 |last1=Plummer |first1=L. Niel |last2=Busenberg |first2=Eurybiades |pages=441–478 |isbn=978-1-4613-7057-4 }}</ref> Every permutation of fluorine, chlorine and hydrogen based on methane and ethane has been examined and most have been commercialized. Furthermore, many examples are known for higher numbers of carbon as well as related compounds containing bromine. Uses include [[refrigerant]]s, [[blowing agent]]s, [[Aerosol spray#Aerosol propellants|aerosol propellant]]s in medicinal applications, and degreasing solvents.

Billions of kilograms of [[chlorodifluoromethane]] are produced annually as a precursor to [[tetrafluoroethylene]], the monomer that is converted into [[Polytetrafluoroethylene|Teflon]].<ref name=Ullmann>{{cite book |doi=10.1002/14356007.a06_233.pub2 |chapter=Chlorinated Hydrocarbons |title=Ullmann's Encyclopedia of Industrial Chemistry |date=2006 |last1=Rossberg |first1=Manfred |last2=Lendle |first2=Wilhelm |last3=Pfleiderer |first3=Gerhard |last4=Tögel |first4=Adolf |last5=Dreher |first5=Eberhard-Ludwig |last6=Langer |first6=Ernst |last7=Rassaerts |first7=Heinz |last8=Kleinschmidt |first8=Peter |last9=Strack |first9=Heinz |last10=Cook |first10=Richard |last11=Beck |first11=Uwe |last12=Lipper |first12=Karl-August |last13=Torkelson |first13=Theodore R. |last14=Löser |first14=Eckhard |last15=Beutel |first15=Klaus K. |last16=Mann |first16=Trevor |isbn=3-527-30673-0 }}</ref>