contexts: Chlorofluorocarbons ( CFCs ) are fully halogenated paraffin hydrocarbons that contain only carbon , chlorine , and fluorine , produced as volatile derivative of methane , ethane , and propane . They are also commonly known by the DuPont brand name Freon . The most common representative is dichlorodifluoromethane ( R - 12 or Freon - 12 ) . Many CFCs have been widely used as refrigerants , propellants ( in aerosol applications ) , and solvents . Because CFCs contribute to ozone depletion in the upper atmosphere , the manufacture of such compounds has been phased out under the Montreal Protocol , and they are being replaced with other products such as hydrofluorocarbons ( HFCs ) ( e.g. , R - 410A ) and R - 134a .
name: Chlorofluorocarbon
answers.input_text: short
answers.span_text: Chlorofluorocarbons
questions.input_text: what is the full form of cfc's