Trichlorofluoromethane - Wikipedia
Trichlorofluoromethane, also called freon-11, CFC-11, or R-11, is a chlorofluorocarbon (CFC). It is a colorless, faintly ethereal, and sweetish-smelling liquid that boils around room temperature. …
The story behind unexpected emissions of CFC-11
Dec 2, 2021 · Trichloromethane, also known as CFC-11, made headlines in 2018 when scientists alerted us of an unexpected increase in global CFC-11 emissions. Unexpected, because CFC …
Emissions of a banned ozone-depleting gas are back on the decline
Five years after an unexpected spike in emissions of the banned ozone-depleting chemical chlorofluorocarbon CFC-11, emissions dropped sharply between 2018 and 2019, new …
LOGOS - NOAA Global Monitoring Laboratory - National …
Since 1977 five different sampling programs within The Halocarbons and other Atmospheric Trace Species (HATS) group have measured chlorofluorocarbon-11 (CFC-11). These programs …
Reductions in CFC-11 emissions put ozone recovery back on track
Feb 10, 2021 · An international research team, including scientists from MIT, have observed a global reduction of the banned ozone-depleting chemical CFC-11, after it spiked unexpectedly …
A decline in global CFC-11 emissions during 2018−2019 | Nature
Feb 10, 2021 · Here we report an accelerated decline in the global mean CFC-11 concentration during 2019 and 2020, derived from atmospheric concentration measurements at remote sites …
Refrigerant R11 (R-11), Freon 11 (Freon R-11) Properties
Refrigerant R11 is chlorofluorocarbon (CFC). Among all the refrigerants commonly used for the refrigeration and air conditioning applications, R11 has the highest potential to cause the …
Trichlorofluoromethane - American Chemical Society
Jul 22, 2019 · Trichlorofluoromethane, also known as CFC-11 and Freon 11, is a refrigerant, aerosol propellant, and foam-blowing agent. It is unusual in that its boiling point is at normal …
Emissions of several ozone-depleting chemicals are larger ... - MIT …
Mar 17, 2020 · While the ozone layer is on a recovery path, scientists have found unexpectedly high emissions of CFC-11 and CFC-12, raising the possibility of production of the banned …
Observations and emission constraints of trichlorofluoromethane (CFC-11 …
Jun 25, 2024 · Results indicate that CFC-11 emissions in the Pearl River Delta region have returned to levels before 2010, aligning with regional and global trends. Observations from …
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