trifluorochloromethane

Trifluorochloromethane, also known as Freon 11 or R-11, has the chemical formula CClF3. It is a colorless, non-flammable liquid at room temperature and pressure, though it readily vaporizes. This compound belongs to the group of chlorofluorocarbons (CFCs). Historically, it was widely used as a refrigerant, a blowing agent for foam insulation, and a propellant in aerosol cans.

Due to its high ozone-depleting potential and significant contribution to global warming, the production and use of trifluorochloromethane have been largely phased out under international agreements like the Montreal Protocol. Its environmental persistence means that even with reduced emissions, it remains in the atmosphere. In industrial applications where it was previously used, it has been replaced by substances with lower environmental impact. Research into its atmospheric chemistry and environmental fate continues.