Question

What are chlorofluorocarbons, why they became popular as substitute of ammonia as refrigerant?

Answer 1

Chlofluorocarbons (CFCs) are organic compounds containing carbon, chlorine and fluorine. They are used as refrigerants. Chlorofluorocarbons such as dichlorodifluorocarbon (also known as CFC-12) have the same boiling point as ammonia, but they are non-toxic. Since pure ammonia is highly toxic, CFCs have replaced ammonia as the refrigerant in many general applications.