|Jmol-3D images||Image 1
|Molar mass||137.37 g/mol|
|Melting point||-110.48 °C|
|Boiling point||23.77 °C|
|Solubility in water||1.1 g/l at 20 °C|
|Vapor pressure||89 kPa at 20 °C
131 kPa at 30 °C
|EU Index||Not listed|
|Main hazards||Ozone depletor|
| (what is: / ?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Trichlorofluoromethane, also called freon-11, CFC-11, or R-11, is a chlorofluorocarbon. It is a colorless, faint ethereal and sweetish odor liquid that boils at about room temperature.
It was the first widely used refrigerant. Because of its high boiling point (compared to most refrigerants), it can be used in systems with a low operating pressure, making the mechanical design of such systems less demanding than that of higher-pressure refrigerants R-12 or R-22.
R-11 is assigned an ozone depletion potential of 1.0. U.S. production was ended in January 1, 1996.
Trichlorofluoromethane is used as a reference compound for fluorine-19 NMR studies.
Years ago, prior to the knowledge of the ozone depletion potential of chlorine in refrigerants and other possible harmful effects on the environment, Trichlorofluoromethane was sometimes used as a cleaning/rinsing agent for low pressure systems, often dumping the used and "dirty" liquid (if cool enough) into waterways.
Table for physical properties
|Density (ρ) at 0 °C||1.5432 g.cm−3|
|Density (ρ) at 18.82 °C||1.4905 g.cm−3|
|Critical temperature (Tc)||198 °C (471 K)|
|Critical pressure (pc)||4.410 MPa (44.1 bar)|
|Critical density (ρc)||4.151 mol.l−1|
|Refractive index (n) at 20 °C, D||1.3821|
|Acentric factor (ω)||0.18875|
|Dipole moment||0.450 D|
|Ozone depletion potential (ODP)||1 (by definition)|
|Global warming potential (GWP)||4600 (CO2 = 1)|
The following products use Trichloroflouromethane:
Col Spray : Surface Coolant MFD. BY Cramer Products, Inc. GARDNER KANSAS U. S. A. 66030 STOCK NO. 033529
- CFC-11 NOAA/ESRL Global measurements
- MSDS at Oxford University
- Public health goal for trichlorofluoromethane in drinking water
- Names at webbook.nist.gov
- Data sheet at speclab.com
- International Chemical Safety Card 0047
- NIOSH Pocket Guide to Chemical Hazards 0290
- Phase change data at webbook.nist.gov
- Thermochemistry data at chemnet.ru
- ChemSub Online: Trichlorofluoromethane - CFC-11