2,2-Dichloro-1,1,1-trifluoroethane

Colorless liquid with a faint ethereal odor

Liquid

1.48 g · cm -3

-107 ° C

28 ° C

957 hPa ( 25 ° C)

Sparingly soluble in water (2.1 g · l-1 at 25 ° C)

1.36332 ( 15 ° C)

Attention

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2,2-dichloro- 1 ,1,1-trifluoroethane is a chemical compound selected from the group consisting of saturated halocarbons. It isomer to 1,2- dichloro- 1 ,1,2- trifluoroethane (R- 123a, CAS 354-23-4 ) and 1,1- dichloro-1 ,2,2-trifluoroethane (R- 123b, CAS 812 -04-4 ).

Production and representation

2,2- dichloro-1 ,1,1- trifluoroethane may be prepared by reaction of perchlorethylene with hydrogen fluoride in the gas phase. This is an exothermic reaction, and requires a catalyst:

Properties

2,2-dichloro- 1 ,1,1 -trifluoroethane is a nonflammable, colorless liquid with a faint ethereal odor, which is sparingly soluble in water. She has a critical temperature of 185 ° C, a critical pressure of 37.9 bar, a global warming potential of 90 and an ozone depletion potential of 0.02.

Use

2,2-dichloro -1 ,1,1 -trifluoroethane is used as a substitute for CFC-11 refrigerant in commercial refrigeration and air conditioning systems.