Chlorotrifluoroethene

Structural formula
General
Surname	Chlorotrifluoroethene
other names	Chlorotrifluoroethylene R 1113 Freon 1113 CTFE Monochlorotrifluoroethylene Perfluorovinyl chloride
Molecular formula	C 2 ClF 3
Brief description	extremely flammable, colorless gas with a slightly ethereal odor
External identifiers / databases
CAS number 79-38-9 EC number 201-201-8 ECHA InfoCard 100.001.093 PubChem 6594 Wikidata Q408215
properties
Molar mass	116.47 g mol −1
Physical state	gaseous
density	5.34 kg m −3 (0 ° C, 1013 mbar)
Melting point	−158.1 ° C
boiling point	−28.4 ° C
Vapor pressure	566 k Pa (20 ° C)
solubility	reacts with water
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 220-280-331 P: 210-261-301 + 310-311-410 + 403
Thermodynamic properties
ΔH f 0	−505.5 kJ / mol
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Chlorotrifluoroethene is a chemical compound from the group of aliphatic , unsaturated halogenated hydrocarbons , more precisely to CFCs .

Extraction and presentation

Chlorotrifluoroethene can be produced from tetrachloroethene , which is first converted into trichlorotrifluoroethane and later with zinc or hydrogen .

properties

Chlorotrifluoroethene is chemically unstable at elevated temperatures. During the decomposition, hydrogen chloride and hydrogen fluoride are formed. It tends to polymerize spontaneously (especially with ethylene or 1,1-dichloroethylene ) . The gas has a critical temperature of 105.8 ° C, a critical pressure of 40.6 bar and a critical density of 0.55 kg / l. The triple point of the temperature is −158.15 ° C and the triple point of the pressure is 0.00001 bar.

use

Chlorotrifluoroethene is used to manufacture the polymers polychlorotrifluoroethylene (PCTFE) and ethylene-chlorotrifluoroethylene fluorocopolymer (ECTFE), i.e. as a monomer or copolymer for thermoplastic specialty plastics.

safety instructions

Chlorotrifluoroethene can form an explosive mixture with air ( ignition temperature 540 ° C). Toxic and corrosive chlorine and fluorine compounds are formed in the event of combustion or thermal decomposition.

Individual evidence

1. ↑ ^{a b c d e f g} Entry on chlorotrifluoroethene in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
2. ↑ Data sheet Chlorotrifluoroethylene from Sigma-Aldrich , accessed on March 22, 2011 ( PDF ).
3. ↑ 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.
4. ↑ chlorotrifluoroethylene