Polyhalogenated hydrocarbon refrigerants and refrigerant oils co

Details Polyhalogenated hydrocarbon refrigerants and refrigerant oils co Polyhalogenated hydrocarbon refrigerants and refrigerant oils co

1985-02-25

1988-07-19

Terapane, John F.

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

With lubricants, or warning, stabilizing or anti-corrosion...

252589, 252 9, 252964, 73 40, 374 4, F21Y 906, G02B 522, G01M 304

Patent

active

047583665

ABSTRACT:
A leak detectable refrigeration composition including a polyhalogenated hydrocarbon refrigerant, a refrigeration oil, or a mixture of the two having a fluorescent dye dissolved therein, is prepared for use in refrigeration systems in automobile air conditioning systems, commercial refrigeration systems, and the like. Upon exposure to ultraviolet light, there is sufficient fluoresence by the refrigeration liquid to allow one to visually detect a leak in the system due to the presence of the dye at the source of the leak. Small leaks which were previously nondetectable with dye coloring systems detectable in normal light may now be detected due to the greater visibility of the flourescent dye under an ultraviolet light.

REFERENCES:
patent: 1915965 (1933-06-01), Williams
patent: 1967871 (1934-07-01), Dantsizen
patent: 2393996 (1946-02-01), Layton
patent: 3370013 (1968-02-01), Labac
patent: 3483735 (1969-12-01), Packo
patent: 3737349 (1973-06-01), Levenson
patent: 3770640 (1973-11-01), Bartlett
Merck Handbook, 10th Ed, Definition of "Rhodamine B".
Condensed Chemical Dictionary, 9th Ed., Definition of "Xanthene" and Xanthene Dye, p. 930.

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