Substantially constant boiling compositions of difluoromethane a

Details Substantially constant boiling compositions of difluoromethane a Substantially constant boiling compositions of difluoromethane a

1991-09-30

1993-08-03

Skaling, Linda

Compositions

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

62114, 252 2, 252 8, 252162, 252172, 252305, 252364, 252371, 252DIG9, 264 53, 264DIG5, 521 98, 521131, C09K 504, C09K 330, A62D 108, C08J 914

Patent

active

052326187

ABSTRACT:
Substantially constant boiling mixtures of difluoromethane and 1,1,1-trifluoroethane or perfluoroethane are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, and expansion agents for polymers.

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Hadley et al. "The Action of Elemental Fluorine upon Organic Compounds IX. The Vapor Phase Florination of Methane" Joun. Amer Chem Soc, vol. 62, pp. 3302-3303, 1940.
Thorp et al. "Fluorocarbon Solutions at ion Temperatures, II The Liq. 12 Mixing C.sub.2 H.sub.6 -C.sub.2 F.sub.6, C.sub.2 F.sub.6 -CHF.sub.3, CH.sub.2 F.sub.2 -CHF.sub.3, C.sub.2 H.sub.6 -CHF.sub.3 and Xe-CHF.sub.3 " pp. 1441-1443, 1956.

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