What are chlorofluorocarbons mainly used for?

Chlorofluorocarbons (CFCs) are primarily recognized for their historical role as aerosol propellants in various consumer products, including spray cans, deodorants, and household cleaners. The unique properties of CFCs allowed them to effectively propel the contents of these products out of their containers and create a fine mist.

In addition, during the mid-20th century, CFCs were praised for their stability and non-flammability, making them desirable in various applications. This ease of use, however, came at an environmental cost, as the release of CFCs into the atmosphere was linked to ozone layer depletion, leading to their phasedown under international agreements like the Montreal Protocol.

While CFCs were also used in refrigeration systems and for other purposes, their most notable and widespread application during their peak usage was indeed in aerosol products. The other options do represent different sectors within agriculture and industrial applications, but they do not hold the same association with CFCs as aerosol propellants do.