| abstract |
The invention relates to an azeotropic or quasi-azeotropic composition comprising hydrogen fluoride, 2,3,3,3-tetrafluoropropene and one or more (hydro)halogen-carbon compounds comprising between 1 and 3 carbon atoms. The invention also relates to a preferred azeotropic or quasi-azeotropic composition comprising hydrogen fluoride, 2,3,3,3-tetrafluoropropene, and one or more organic compounds selected from among 1,1,1,2,2-pentafluoropropane, E- 1,3,3,3-tetrafluoropropene, Z-1,3,3,3-tetrafluoropropene, 3,3,3-trifluoropropene, 3,3,3-trifluoro-2-chloropropene, E-3,3,3-trifluoro-1-chloropropene, trifluoropropyne, 1,1,1,3,3-pentafluoropropane, 1,1,1,3,3-pentafluoropropene, Z-1, 1,1, 2,3- pentafluoropropene and 2-chloro,1,1,1,2-tetrafluoropropane. |