Patent ID: 8741828

Claim:
A ternary azeotrope or azeotrope-like composition consisting essentially of hydrogen fluoride, 2-chloro-3,3,3-trifluoropropene, and a third component selected from the group consisting of 1,1,2,3-tetrachloropropene and 1,1,1,2,2-pentafluoropropane, wherein when the third component is 1,1,2,3-tetrachloropropene, hydrogen fluoride is present in an amount from about 3.0 to about 28.0 weight percent, 2-chloro-3,3,3-trifluoropropene is present in an amount from about 68.0 to about 93.0 weight percent, and 1,1,2,3-tetrachloropropene is present in an amount from about 2.5 to about 4.3 weight percent, and when the third component is 1,1,1,2,2-pentafluoropropane, hydrogen fluoride is present in an amount, from about 3.0 to about 22.0 weight percent, 2-chloro-3,3,3-trifluoropropene is present in an amount from about 65.0 to about 83.5 weight percent, and 1,1,1,2,2-pentafluoropropane is present in an amount from about 11.1 to about 15.5 weight percent.