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| 2,2-Dichloro-1,1,1-trifluoroethane1 | |
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| 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 | 306-83-2 |
| PubChem | |
| EINECS number | |
| RTECS number | KI1108000 |
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| InChI |
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| Properties | |
| Molecular formula | C2HCl2F3 |
| Molar mass | 152.93 g/mol |
| Appearance | Colorless liquid |
| Density | 1.46 g/cm3 |
| Melting point |
-107 °C |
| Boiling point |
27.6 °C |
| Solubility in water | 0.39% |
| Vapor pressure | 89.3 kPa |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
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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 firefighting, foam blowing processes, and 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
External links
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Wikipedia content modification information:
- This page was last modified on 28 October 2007, at 04:41.
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