Now, it seems, Freon
and other fluorocarbon pollutants in the upper atmosphere may be removing ozone, which acts as a protective layer against harmful ultraviolet light.
are commercially valuable specifically because they are so chemically inert; the only thing that effectively breaks them apart is hard radiation, such as the ultraviolet rays in the stratosphere.
The subsidiary will provide gas analyzers that use Fourier transform infrared (FT-IR) spectrometry to test aviators' breathing oxygen for contaminants such as carbon monoxide, nitrous oxide, methane, freons
, and other gases that can affect a pilot's mental acuity.
As a nucleating agent, it is recommended for direct-gas systems using freons
, pentane, butane, isobutane, nitrogen and carbon dioxide.
The enviro-friendly foams use water as a blowing agent, contain no freons
and maintain their structure when exposed to high temperatures.