| abstract |
A heterogeneous azeotrope or azeotrope-like composition comprising 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and water, comprising about 0.05 wt. % to about 92.01 wt. % 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and about 7.99 wt. % to about 99.95 wt. % water and having a boiling point of from about −13.5° C. to about 14.5° C. at a pressure of from about 12.5 psia to about 16.5 psia. This azeotrope or azeotrope-like composition can be used to separate impurities from 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb). [Selection drawing] Fig. 1 |