Trichlorofluoromethane

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Trichlorofluoromethane
Trichlorofluoromethane-2D.svg
Trichlorofluoromethane-3D-vdW.png
Names
IUPAC name
Trichlorofluoromethane
Other names
Trichloro(fluoro)methane, Fluorotrichloromethane, Fluorochloroform, Freon 11, CFC 11, R 11, Arcton 9, Freon 11A, Freon 11B, Freon HE, Freon MF
Identifiers
CAS number 75-69-4 YesY
ChEBI CHEBI:48236 YesY
ChEMBL ChEMBL348290 YesY
ChemSpider 6149 YesY
EC number 200-892-3
Jmol-3D images Image
Image
PubChem 6389
RTECS number TB6125000
UNII 990TYB331R YesY
Properties
CCl3F
Molar mass 137.37 g·mol−1
Appearance Colorless liquid/gas
Density 1.494 g/cm3
Melting point −110.48 °C (−166.86 °F; 162.67 K)
Boiling point 23.77 °C (74.79 °F; 296.92 K)
1.1 g/L (at 20 °C)
log P 2.53
Vapor pressure 89 kPa at 20 °C
131 kPa at 30 °C
Hazards
MSDS External MSDS
EU Index Not listed
Flash point Non-flammable
US health exposure limits (NIOSH):
TWA 1000 ppm (5600 mg/m3)[1]
Supplementary data page
Refractive index (n),
Dielectric constantr), etc.
Thermodynamic
data
Phase behaviour
solid–liquid–gas
UV, IR, NMR, MS
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

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.

Uses[edit]

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.

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.[citation needed]

Gallery[edit]

References[edit]

External links[edit]