Patent ID: 7625854

Claim:
An azeotrope-like composition comprising a blend of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 1-bromopropane, and a third component, wherein the composition is selected from: (i) a blend consisting essentially of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 1-bromopropane and methanol, when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of about 73.2 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 18.6 weight percent of 1-bromopropane and 8.2 weight percent of methanol that boils about 45.3° C. at 732 torr; or (ii) a blend consisting essentially of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 1-bromopropane and ethanol, when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of about 77.0 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 18.0 weight percent of 1-bromopropane and 5.0 weight percent of ethanol that boils about 50.9° C. at 735 torr; or (iii) a blend consisting essentially of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 1-bromopropane and isopropanol when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of about 79.9 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 17.6 weight percent of 1-bromopropane and 2.5 weight percent of isopropanol that boils about 51.9° C. at 738 torr.