1,1,2-trichloro-1,2,2-trifluoroethane

Structural formula
General
Surname	1,1,2-trichloro-1,2,2-trifluoroethane
other names	1,2,2-trifluorotrichloroethane 1,2,2-trichlorotrifluoroethane Freon 113 R-113 Trichlorotrifluoroethane (ambiguous)
Molecular formula	C 2 Cl 3 F 3
Brief description	colorless, sweet-smelling liquid
External identifiers / databases
CAS number 76-13-1 EC number 200-936-1 ECHA InfoCard 100,000,852 PubChem 6428 Wikidata Q161276
properties
Molar mass	187.38 g mol −1
Physical state	liquid
density	1.58 g cm −3
Melting point	−35 ° C
boiling point	47.6 ° C
Vapor pressure	364 h Pa (20 ° C)
solubility	very heavy in water (0.17 g l −1 at 20 ° C)
Refractive index	1.358 (20 ° C)
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 411-420 P: 273
MAK	DFG : 500 ml m −3 or 3900 mg m −3 Switzerland: 500 ml m −3 or 3800 mg m −3
Toxicological data	43,000 mg kg −1 ( LD 50 ,  rat ,  oral )
Global warming potential	6586 (based on 100 years)
Thermodynamic properties
ΔH f 0	−745.0 kJ / mol
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

1,1,2-Trichloro-1,2,2-trifluoroethane (TCTFE) is an organic compound from the group of CFCs (LHKW), which occurs in the form of a colorless liquid.

properties

1,1,2-Trichloro-1,2,2-trifluoroethane is a colorless, sweet-smelling liquid that is sparingly soluble in water. The vapors of 1,1,2-trichloro-1,2,2-trifluoroethane are much heavier (6.5 times as heavy) than air.

use

In the past, 1,1,2-trichloro-1,2,2-trifluoroethane was used as a refrigerant and in the 1960s as a cleaning agent ( care symbol circled F) for sensitive substances. Since the ban on CFCs as refrigerants, it has only been used in the laboratory for the analysis of mineral oils or sugars. In gas chromatography with a flame ionization detector of - to improve the volatility - silylated compounds it is added as an additive to prevent the formation of silicon dioxide in the detector.

safety instructions

As CFC, it is harmful to the ozone layer and has a high global warming potential . The substance decomposes on contact with flames, which can produce toxic chlorine and fluorine compounds such as phosgene or hydrogen fluoride .

Individual evidence

1. ↑ ^{a b} data sheet 1,1,2-trichloro-1,2,2-trifluoroethane (PDF) from Merck , accessed on January 18, 2011.
2. ↑ ^{a b c d e f g h i j} Entry on 1,1,2-trichloro-1,2,2-trifluoroethane in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
3. ↑ Data sheet 1,1,2-trichloro-1,2,2-trifluoroethane from Sigma-Aldrich , accessed on October 16, 2016 ( PDF ).
4. ↑ Swiss Accident Insurance Fund (Suva): Limit values ​​- current MAK and BAT values (search for 76-13-1 or 1,1,2-trichloro-1,2,2-trifluoroethane ), accessed on November 2, 2015.
5. ↑ G. Myhre, D. Shindell et al .: Climate Change 2013: The Physical Science Basis . Working Group I contribution to the IPCC Fifth Assessment Report. Ed .: Intergovernmental Panel on Climate Change . 2013, Chapter 8: Anthropogenic and Natural Radiative Forcing, pp. 24-39; Table 8.SM.16 ( PDF ).
6. ↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Standard Thermodynamic Properties of Chemical Substances, pp. 5-21.
7. ↑ Saxon State Office for Environment and Geology: Sector-specific leaflets on the treatment of contaminated sites: Chemical cleaning , as of: 11/99.