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

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2,2-Dichloro-1,1,1-trifluoroethane
Names
IUPAC name 2,2-Dichloro-1,1,1-trifluoroethane
Other names 1,1,1-Trifluoro-2,2-dichloroethane, Dichlorotrifluoromethylmethane, Dichlorotrifluoroethane, Freon 123, HCFC-123, R 123
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.005.629 Edit this at Wikidata
EC Number
  • 206-190-3
PubChem CID
RTECS number
  • KI1108000
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C2HCl2F3/c3-1(4)2(5,6)7/h1HKey: OHMHBGPWCHTMQE-UHFFFAOYSA-N
  • InChI=1/C2HCl2F3/c3-1(4)2(5,6)7/h1HKey: OHMHBGPWCHTMQE-UHFFFAOYAP
SMILES
  • ClC(Cl)C(F)(F)F
Properties
Chemical formula C2HCl2F3
Molar mass 152.93 g/mol
Appearance Colorless liquid
Density 1.46 g/cm
Melting point -107 °C
Boiling point 27.6 °C
Solubility in water 0.39%
Vapor pressure 89.3 kPa
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkY verify (what is  ?) Infobox references
Chemical compound

2,2-Dichloro-1,1,1-trifluoroethane or HCFC-123 is considered as an alternative to CFC-11 in low pressure refrigeration/HVAC systems, and should not be used in foam blowing processes or solvent applications.

Its ozone depletion potential is ODP = 0.012, and global warming potential is GWP = 76. HCFC-123 will eventually be phased out under the current schedule of the Montreal Protocol, but can continue to be used in new HVAC equipment until 2020 in developed countries, and will still be produced for service use of HVAC equipment until 2030. Developing countries can use in new equipment until 2030, and can be produced for use in service until 2040.

HCFC-123 is used in large tonnage centrifugal chiller applications, and is the most efficient refrigerant currently in use in the marketplace for HVAC applications.

Storage tanks carrying HCFC-123 should be a light grey.

Isomers are 1,2-dichloro-1,1,2-trifluoroethane (R-123a) with CAS 354-23-4 and 1,1-dichloro-1,2,2-trifluoroethane (R-123b) with CAS 812-04-4.

References

  1. MSDS from DuPont

External links

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