Properties of Chloro Fluoro Carbons or C.F.C.

Properties of Chloro Fluoro Carbons or C.F.C.

The chloro-flouro derivatives of methane & ethane are known as “C.F.C”. They are commercially known as “Freons”. Chlorofluorocarbon (CFC) is an organic compound that contains carbon, chlorine, and fluorine, produced as a volatile derivative of methane and ethane. Among the CFCs. Freon-11 (CCl3F); Freon -12 (CC12F2) & Freon -21 ( F2ClCC.ClF2) are important.

The chemical reaction for CFC is: CCl3F = CCl2F + Cl.


  • CFCs are colorless, odorless, non toxic inflammable gaseous substance.
  • They can easily be convened into liquids by applying little pressure.
  • They have low boiling points, the B P of Freon -11 & Freon -12 is 240C & 300C respectively.
  • They are insoluble in water.

Physical Properties of chloro-flouro carbon:

  • Molecular Weight: 187.38 (Freon-113)
  • Boiling Point: 47.70C
  • Melting Point: -36.40C
  • Water Solubility: 170 mg/l at 250C


  • Mostly used as refrigerant in air-conditioner, refrigerator etc.
  • Production of aerosol, propellant gas, hair spray, perfume, plastic foam etc.
  • As CFCs cause harm to the Ozone layer of atmosphere, so now a day’s their uses become very limited.
  • CFC gases are relatively stable compounds used as refrigerant gases in air conditioning units, freezers, refrigerators and other household appliances.