Trichlorofluoromethane

Chembox new
ImageFileL1 = Trichlorofluoromethane-2D.svg
ImageSizeL1 =
ImageFileR1 = Trichlorofluoromethane-3D-vdW.png ImageSizeR1 =
IUPACName = Trichlorofluoromethane
OtherNames = Trichloro(fluoro)methane, Fluorotrichloromethane, Fluorochloroform, Freon 11, CFC 11, R 11, Arcton 9, Freon 11A, Freon 11B, Freon HE, Freon MF
Section1 = Chembox Identifiers
CASNo = 75-69-4
EINECS = 200-892-3
PubChem = 6389
SMILES = C(F)(Cl)(Cl)Cl
InChI = 1/CCl3F/c2-1(3,4)5
RTECS = TB6125000
Section2 = Chembox Properties
Formula = CCl₃F
MolarMass = 137.37 g/mol
Appearance = Colorless liquid/gas
Density = 1.494 g/cm³
MeltingPt = -110.48 °C
BoilingPt = 23.77 °C
Solubility = 1.1 g/l at 20 °C
LogP = 2.53
VaporPressure = 89 kPa at 20 °C131 kPa at 30 °C
Section3 = Chembox Hazards
MainHazards = Harmful (Xn), Dangerous for the environment (N)
FlashPt =
Autoignition =
RPhrases = R36/37/38
SPhrases = S23, S26, S36

Trichlorofluoromethane, also called freon-11, CFC-11, or R-11, is a chlorofluorocarbon. It is a colorless, nearly odorless liquid that boils at about room temperature.

Uses

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.

Because of the high chlorine content and the ease with which the chlorine atoms can be displaced when the molecule is subject to ultraviolet light, R-11 has the highest ozone depletion potential of any refrigerant, by definition assigned the value 1.0. U.S. production was ended in 1995.

Trichlorofluoromethane is used as a reference compound for fluorine-19 NMR studies.

Table for physical properties

See also

* Haloalkane
* Halomethane
* Chlorofluorocarbon
* Tetrafluoromethane
* Dichlorodifluoromethane
* Chlorotrifluoromethane
* Tetrachloromethane

External links

* [http://ptcl.chem.ox.ac.uk/MSDS/FL/fluorotrichloromethane.html MSDS at Oxford University]
* [http://www.oehha.ca.gov/water/phg/pdf/fc_11_c.pdf Public health goal for trichlorofluoromethane in drinking water]
* [http://webbook.nist.gov/cgi/cbook.cgi?ID=75-69-4&Units=SI Names at webbook.nist.gov]
* [http://www.speclab.com/compound/c75694.htm Data sheet at speclab.com]
*
*
* [http://webbook.nist.gov/cgi/cbook.cgi?ID=C75694&Units=SI&Mask=4#Thermo-Phase Phase change data at webbook.nist.gov]
* [http://www.chemnet.ru/rus/handbook/ivtan/221.html Termochemistry data at chemnet.ru]