DuPont's Freon (TM) substitution
Name: Lynn Slezak
Is there a substitute for aerosol sprays?
DuPont's Freon (TM)-11 harms the atmosphere and
oxygen does not. Could we use oxygen instead?
Compressed carbon dioxide has been used as a propellant in aerosol sprays,
oxygen, however, is much too explosive when compressed and would not be a go
good candidate for aerosol sprays. Finding replacements for compressed gas
propellants has not been a big problem, however, finding replacements of for
the freons used in air conditioners has been more difficult. As you may have
noticed from the "green" neon car commercials a replacement has been found
although it is more expensive and I have heard that it cannot be used as a
replacement gas in home window air conditioners.
Stacie M Clark
A feature article on the completion of a major study of alternatives to CFC's
appears in the October 1993 (Volume 43) issue of "Journal of the Air and Waste
Management Association" on page 1393.
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Update: June 2012