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Cfc - School Essays

Cfc


The beginning of the (chlorofluorocarbons) era started in 1928, when ' were invented by a Du Pont chemist. ' were best known as "freons" and became famous as a safe, nonflammable refrigerant. It's invention became a great triumph when Freon took the place of sulfur dioxide or ammonia which was used as the working liquid in refrigerators. It eventually became widely used in automobile air conditioners and nontoxic propellants in aerosol cans. It's insulating properties also was used for blowing agents for plastics and foam cups.
Thus s became used all over the world and its business got bigger and bigger until late in 1973. Sherwood Rowland and Mario Molina, two distinguished chemists, came ...

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atomic chlorine which then would react with the ozone and convert it back into plain oxygen. The even worse part of all this is that these chlorine molecules do not become inactive after the first reaction with the ozone and would be available to destroy more ozone molecules. Thus this process would be the function of a catalyst; a single chlorine atom involved in a chain reaction to destroy many ozone molecules.
Rowland and Molina eventually agreed that this thinning of the ozone shield can cause a catastrophe for Earth's living beings, including humans, by allowing large amounts of the deadly ultraviolet-B radiation to reach to Earth's surface. Rowland and Molina checked their calculations again and again to make sure that these figures had not a single mistake in it because this conclusion was likely to destroy an $8 billion industry already in the United States. However, the lives of the living beings were far more important than businesses so in 1974 Rowland and Molina, ...

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PAPER DETAILS
Added: 6/30/2004 10:58:02 AM
Category: Science & Nature
Type: Premium Paper
Words: 1018
Pages: 4

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SIMILAR ESSAYS
» CFC's and the Environment
» The Depletion Of Ozone Layer
» Chlorofluorocarbons (CFCs)
» Ozone Depletion
» Chloroflourocarbons
» The Importance Of The Ozone Lay...
» The Destruction Of The Ozone La...
» Cfcs Cause Deterioration Of The...
» Air Pollution Report
» The Depletion Of The Ozone Laye...
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