Near-azeotropic blends for use as refrigerants

C - Chemistry – Metallurgy – 09 – K

Patent

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Details

C09K 5/04 (2006.01) C07C 21/185 (2006.01)

Patent

CA 2413038

A near azeotropic composition which is a blend of pentafluoroethane and 1,1,1- trifluoroethane with 1,1,1,2-tetrafluoroethane or 1,1,2,2-tetrafluoroethane in the proportions of 35 to 65 weight percent of pentafluoroethane, 30 to 60 weight percent of 1,1,1- trifluoroethane and 3 to 15 weight percent of 1,1,2,2-tetrafluoroethane or 1,1,1,2- tetrafluoroethane.

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