Trade name for any of a special class of chemical
compounds used as refrigerants, aerosol propellants,
and solvents.
Freons Hydrocarbon derivatives that
contain fluorine and often chlorine and bromine as
well. They are generally colorless, odorless, non-toxic,
non-corrosive, and non-flammable.
Though usually un-reactive,
freons are now suspected to undergo reactions in the
upper atmosphere that may damage the earth's
Ozone layer.
The most commonly used is Freon-12, or
dichlorodifluoromethane (CCI2F2)
