chlorofluorocarbon


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chlorofluorocarbon

(klôr′ō-flo͝or′ō-kär′bən, -flôr′-)
n. Abbr. CFC
Any of various halocarbon compounds consisting of carbon, hydrogen, chlorine, and fluorine, once used widely as aerosol propellants and refrigerants. Volatile chlorofluorocarbons are believed to cause depletion of the atmospheric ozone layer.

chlorofluorocarbon

(klōr″ō-floor″ō-kar′bŏn) [ chloro- + fluorocarbon],

CFC

A fluorinated hydrocarbon, formerly used in metered dose inhalers as a propellant gas. CFCs accumulate in and damage the ozone layer of the stratosphere.
References in periodicals archive ?
In September 1989, Motorola announced its policy to eliminate by the end of 1992 the emission of chlorofluorocarbon chemicals that deplete the protective ozone shield.
These contain gases such as Chlorofluorocarbons (CFCs) and HCFCs, used for the coolant and insulation.
China and Venezuela have pledged to phase out the use and production of chlorofluorocarbons (CFCs) by the end of 2007, two years earlier than required by the Montreal Protocol on Substances that Deplete the Ozone Layer.
A magnetic-cooling system could also be less polluting than current systems because it wouldn't use environmentally harmful chemicals, such as ammonia or chlorofluorocarbons.
That's thanks to a law in 1987 banning chlorofluorocarbons (CFCs), or ozone-chewing chemicals, from aerosol cans and refrigerators.
But wait," you say, "I thought we took care of the environmental problems of air conditioning refrigerants a long time ago when we replaced ozone-depleting chlorofluorocarbons (CHC-12) with hydrofluorocarbons (HFC-134a).
When it became known that chlorofluorocarbons and hydrochlorofluorocarbons in refrigerants were contributing to depletion of the earth's protective ozone layer, NIST began a program (funded by the Department of Energy's Office of Basic Energy Sciences and Office of Building Technologies) to measure the properties of their replacements.
The heater uses carbon dioxide as a refrigerant instead of chlorofluorocarbons, which are commonly used in such devises.
Later, other scientists showed that pollutants called chlorofluorocarbons also damage the ozone layer.
In a nutshell, I learned that leading atmospheric theorists agree that, because of man-made chlorofluorocarbons (CFCs), the average amount of ozone in the stratosphere between the far northern and far southern latitudes had been declining at a steady rate of roughly three percent per decade since 1978.
Nilodor is one of the first companies to offer the sanitary supply industry an afrosol odor counteractant low in Volatile Organic Compounds (VOCs), materials that affect the creation of smog, and fee of Chlorofluorocarbons (CFCs), 1,1,1 Trichloroethane and Chlorination, which are linked to the depletion of the ozone layer.