DETAILED DESCRIPTION OF THE INVENTION In accordance with the invention, novel azeotrope-like compositions have been discovered comprising tertiary butyl 2,2,2-trifluoroethyl ether and perfluoromethylcyclohexane.
Preferably the azeotrope-like compositions comprise from about 20 to about 35 weight percent tertiary butyl 2,2,2-trifluoroethyl ether and from about 65 to about 80 weight percent perfluoromethylcyclohexane and boil at about 70.
5.
degree.
C.
at 754 mm Hg.
In a more preferred embodiment, the azeotrope-like compositions of the invention comprise from about 25 to about 35 weight percent tertiary butyl 2,2,2-trifluoroethyl ether and from about 65 to about 75 weight percent perfluoromethylcyclohexane.
In a most preferred embodiment, the azeotrope-like compositions of the invention comprise from about 26 to about 34 weight percent tertiary butyl 2,2,2-trifluoroethyl ether and from about 66 to about 74 weight percent perfluoromethylcyclohexane.
The tertiary butyl 2,2,2-trifluoroethyl ether component of the invention has good solvent properties, but is flammable.
The perfluoromethylcyclohexane component has poorer solvent properties but is nonflammable.
When these components are combined in effective amounts, a synergistic blend having azeotropic properties results which is nonflammable and has good solvent capabilities.
It is known in the art that ether may exhibit the undesirable characteristic of forming peroxides especially when exposed to sun light or other radiation or stored for long periods of time.
Furthermore, certain of the peroxides produced from decomposition of the ether are explosive and may be detonated by a shock.
The art has recognized that certain stabilizers or anti-oxidant additives can be used to inhibit the decomposition of ether into the peroxide.
Examples of such materials are alkyl or aryl phosphites such as diphenyl phosphite, triphenyl phosphite, tri-iso-octyl phosphite, di-octyl phosphite, and tri-iso-decyl phosphite, phenols such as 2,6-diethyl phenol, 2,4,6-triethyl phenol, 2,6-dipropyl phenol, and 2,4,6-tripropyl phosphite, and unsaturated hydrocarbons like cis and trans 4-methyl-2-pentene, cis and trans 2-hexene, 2-ethyl-1,3-butadiene, 1,2-pentadiene, cis and trans 1-hexene, and di-isobutylene
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Nonmetallic Processes 
