What is R-12 classified as?

R-12 is classified as a CFC (chlorofluorocarbon) refrigerant. CFCs were commonly used in refrigeration and aerosol propellants due to their effectiveness and stability. However, it is important to recognize that R-12, while efficient, has been phased out in many countries due to its significant contribution to ozone layer depletion. The use of CFCs like R-12 has become heavily regulated under the Montreal Protocol, which aimed to protect the ozone layer by reducing the production and consumption of ozone-depleting substances.

In contrast to R-12, azeotropic refrigerants are mixtures that behave like a single substance during phase changes, hydrocarbons are organic compounds that can be used as refrigerants, typically being more environmentally friendly, and HFCs (hydrofluorocarbons) are a newer class of refrigerants that do not deplete the ozone layer but may have high global warming potential. This distinction highlights the specific environmental impacts associated with different types of refrigerants and underscores the importance of transitioning to safer alternatives.