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    Wikipedia
    https://en.wikipedia.org › wiki › Chlorofluorocarbon

    Chlorofluorocarbon - Wikipedia

    Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F), produced as volatile derivatives of methane, ethane, and propane. The most common example is dichlorodifluoromethane (R-12). R-12 is … See more

    Structure, properties and production

    As in simpler alkanes, carbon in the CFCs bond with tetrahedral symmetry. Because the fluorine and chlorine atoms differ greatly in size and … See more

    Reactions

    The reaction of the CFCs which is responsible for the depletion of ozone, is the photo-induced scission of a C-Cl bond: See more

    History

    Prior to, and during the 1920s, refrigerators used toxic gases as refrigerants, including ammonia, sulphur dioxide, and chloromethane. Later in the 1920s after a series … See more

    Applications

    CFCs and HCFCs are used in various applications because of their low toxicity, reactivity and flammability. Every permutation of … See more

    Classes of compounds and Numbering System

    • Chlorofluorocarbons (CFCs): when derived from methane and ethane these compounds have the formulae CClmF4−m and C2ClmF6−m, where m is nonzero.
    • Hydro-chlorofluorocarbons (HCFCs): when derived from methane and ethane these compounds … See more

    Impact as greenhouse gases

    CFCs were phased out via the Montreal Protocol due to their part in ozone depletion.
    The atmospheric impacts of CFCs are not limited to their role as ozone-depleting chemicals. Infrared absorption bands prevent heat at that … See more

    Tracer of ocean circulation

    Since the time history of CFC concentrations in the atmosphere is relatively well known, they have provided an important … See more

    From Wikipedia
    From Wikipedia
    Content
    Structure, properties and production
    Applications
    Classes of compounds and Numbering System
    Reactions
    Impact as greenhouse gases
    History
    Tracer of ocean circulation
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  3. Getty Images
    https://www.gettyimages.com › photos › chlorofluorocarbon

    111 Chlorofluorocarbon Stock Photos & High-Res Pictures - Getty …

  4. NASA Earth Observatory
    https://earthobservatory.nasa.gov › images

    Ozone Hole Continues Healing in 2024 - NASA Earth Observatory

  5. iStock
    https://www.istockphoto.com › photos › chlorofluorocarbon

    Chlorofluorocarbon Pictures, Images and Stock Photos

  6. Sciencing
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    What Effects do Chlorofluorocarbons Have on Humans?

    Apr 10, 2018 · Chlorofluorocarbons (CFCs) are liquids that were used as refrigerants and aerosol propellants, but are now linked to ozone depletion …

    • Getty Images
      https://www.gettyimages.com › photos › chlorofluorocarbons

      145 Chlorofluorocarbons Stock Photos & High-Res Pictures

    • People also ask
      What is an example of a CFC?
      The most common example is dichlorodifluoromethane(R-12). R-12 is also commonly called Freon and was used as a refrigerant. Many CFCs have been widely used as refrigerants, propellants(in aerosolapplications), gaseous fire suppressionsystems, and solvents.

      Chlorofluorocarbon - Wikipedia

      en.wikipedia.org
      Who invented CFC?
      The Frigidaire corporation was issued the first patent, number 1,886,339, for the formula for CFCs on December 31, 1928. In a demonstration for the American Chemical Society, Midgley flamboyantly demonstrated all these properties by inhaling a breath of the gas and using it to blow out a candlein 1930.

      Chlorofluorocarbon - Wikipedia

      en.wikipedia.org
      What happened to CFC?
      In 1987, an international treaty was enacted to prevent additional degradation: the Montreal Protocol banned CFCs, while creating protocols to track their emissions. Even after production ceased, scientists still expected chemicals like CFC-11 to continue leaking from existing products for years, but at a gradually declining rate.

      Tracing Changes in Ozone-Depleting Chemicals - NASA Earth Observat…

      earthobservatory.nasa.gov
      What is chlorofluorocarbons (CFCs)?
      With a background in environmental science, he has a deep understanding of the issues facing our planet and is committed to educating others on how they can make a difference. Chlorofluorocarbons (CFCs) are non-toxic, non-flammable chemicals composed of carbon, chlorine, and fluorine.

      What are Chlorofluorocarbons (CFCs)? - Energy Theory

      energytheory.com
      Are CFCs toxic?
      As a result of CFCs being largely non-toxic, they quickly became the coolant of choice in large air-conditioning systems. Public health codes in cities were revised to designate chlorofluorocarbons as the only gases that could be used as refrigerants in public buildings.

      Chlorofluorocarbon - Wikipedia

      en.wikipedia.org
      Do CFCs cause skin cancer?
      CFCs contribute to the loss of the protective ozone layer, which blocks ultraviolet rays from the sun. This exposes more people to UV radiation, which can cause skin cancer. According to the University of Georgia, one in five Americans develops skin cancer in his or her lifetime.

      What Effects do Chlorofluorocarbons Have on Humans?

      sciencing.com
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    • Energy Theory
      https://energytheory.com › what-are...

      What are Chlorofluorocarbons (CFCs)? - Energy Theory

      Nov 17, 2023 · CFCs are halocarbons used in aerosols, foams, solvents, and refrigerants. They damage the ozone layer and cause health and environmental problems. Learn about their examples, effects, and alternatives.

    • Combined Federal Campaign
      https://givecfc.org › home

      Home | Combined Federal Campaign

    • NASA Earth Observatory
      https://earthobservatory.nasa.gov › ima…

      Tracing Changes in Ozone-Depleting Chemicals

      Feb 18, 2021 · See maps and graphs of CFC-11 emissions from eastern China and their impact on stratospheric ozone recovery. Learn how scientists tracked and investigated the source of the unexpected emissions and how the …

    • iStock
      https://www.istockphoto.com › photos › …

      Chlorofluorocarbons Pictures, Images and Stock Photos

      Search from Chlorofluorocarbons stock photos, pictures and royalty-free images from iStock. Find high-quality stock photos that you won't find anywhere else.