Cryofluorane

1,2-Dichlorotetrafluoroethane
Identifiers
CAS number 76-14-2 YesY
ChemSpider 6189 YesY
UNII 6B5VVT93AR N
EC number 200-937-7
Jmol-3D images Image 1
Properties
Molecular formula C2Cl2F4
Molar mass 170.92 g/mol
Density 1.455 g/cm3
Melting point

-94 °C

Boiling point

3.5 °C

Hazards
Main hazards Ozone depletor
 N (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

1,2-Dichlorotetrafluoroethane, or R-114, is a chlorofluorocarbon (CFC) with the molecular formula ClF2CCF2Cl. Its primary use has been as a refrigerant. It is a non-flammable gas with a sweetish, chloroform-like odor with the critical point occurring at 145.6 °C and 3.26 MPa. When pressurized or cooled, it is a colorless liquid. It is listed on the Intergovernmental Panel on Climate Change's list of ozone depleting chemicals, and is classified as a Montreal Protocol Class I, group 1 ozone depleting substance.[1]

When used as a refrigerant, R-114 is classified as a medium pressure refrigerant.

The US Navy uses R-114 in its centrifugal chillers in preference to R-11 to avoid air and moisture leakage into the system. While the evaporator of an R-11 charged chiller runs at a vacuum during operation, R-114 yields approximately 0 psig operating pressure in the evaporator.

References

External Links

  • Material Safety Data Sheet from Honeywell International Inc., dated 22 August 2007.
  • CDC - NIOSH Pocket Guide to Chemical Hazards
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