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Chloroflourocarbons
Beginning of Paper
were discovered in the 1920's by Thomas Midgley, an
organic chemist at General Motors Corporation. He was looking for inert, non-
toxic, non-flammable compounds with low boiling points that could be used as
refrigerants. He found what he was looking for in the form of two compound .... Middle of Paper .... and hospital sterilants.
Another use found for them was to blow liquid plastic into various kinds of
foams.
In the 1930's, household insecticides were bulky and hard to use, so CFCs
were created because they could be kept in liquid form and in an only slightly
pressurized can. Thus, in 1947, the spray can was born, selling millions of
cans each year. Insecticides were only the first application for CFC spray cans.
They soon employed a number of products from deodorant to hair spray. In 1954,
188 million cans were sold in the U.S. ....
1178 words | 5 pages
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