Nonazeotropic mixtures containing difluoromethane and 1,1,1,2-te

Details Nonazeotropic mixtures containing difluoromethane and 1,1,1,2-te Nonazeotropic mixtures containing difluoromethane and 1,1,1,2-te

1994-06-29

1996-07-23

Skane, Christine

Compositions

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

62114, 252364, 264 53, 264DIG5, 510412, 510433, C09K 504

Patent

active

055386601

ABSTRACT:
In order to replace the chlorodifluoromethane in air conditioning systems, the invention proposes the use, as refrigerant fluid, of a mixture containing by mass from 26 to 34% of difluoromethane, from 56 to 73% of 1,1,1,2-tetrafluoroethane and from 1 to 10% of tetrafluoromethane or octafluoropropane.

REFERENCES:
patent: 4810403 (1989-03-01), Bivens et al.
Handbook of Chemistry and Physics, 63rd Edition, Boiling Point of Tetrafluoromethane, C-373, 1983.

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