Freons:
Chlorofluoro derivatives of methane and ethane are called freons. They can be prepared by the reaction of HF with carbon tetrachloride (CCl4) or hexachloroethane in the presence of SbCl5.
For example:
Properties of Freons:
Freons odourless, volatile liquids. They are highly inert and highly stable even at high temperature and pressure.
Uses of Freons:
(i) They are used as inert solvents.
(ii) They are used as refrigerants in the refrigerator, air conditioners.
(iii) They are used in the form of propellant in aerosols.
