The present invention relates to a composition comprising:trifluoroethylene;
pentafluoroethane; andat least one
compound C chosen from the group constituted by
difluoromethane, 1,1,1-trifluoropropene,
trifluoroethane, 1,1,1,2-tetrafluoroethane, monofluoroethane, 1,1,1,4,4,4-hexafluorobut-2-ene, 3,3,4,4,4-pentafluorobut-1-ene, 2,4,4,4-tetrafluorobut-1-ene, 1,1,1,3,3-
pentafluoropropane, 2,3,3,3-tetrafluoropropene, 1,1,2,2-tetrafluoroethane, 1,1-difluoroethane, 1,1,1,3,3-pentafluorobutane,
butane, 1,1,1,2,3,3,3-heptafluoropropane, 1-chlorotrifluoropropene, 2-methylbutane,
pentane,
propane, and mixtures thereof.The present invention also relates to the uses thereof in
refrigeration,
air conditioning and heat pumps.