|Molar mass||132.92 g·mol−1|
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
|what is: / ?)(|
A dichlorodifluoroethylene (systematically named dichlorodifluoroethene) is one of three compounds with the chemical formula C
2. Dichlorodifluoroethylenes are colourless gases, and are some of the simplest chlorodifluoroalkenes.
1,1-Dichloro-2,2-difluoroethylene is a low-boiling liquid that is used a refrigerant. It may also be used as a solvent, but has practical limitations as such, because of its low boiling point (commercial listings, 19 °C; lit. 17 °C).
It is regarded as a hazardous chemical for being toxic by inhalation (see MSDS), and a low-boiling liquid, and it causes irritation when it comes into contact with the skin and mucous membranes. Its ASHRAE number is R-1112a, and its CAS number is 79-35-6. Concentrated 1,1-dichloro-2,2-difluoroethylene can be ignited with ease in the laboratory.
cis- And trans-1,2-dichloro-1,2-difluoroethylene
The diastereomers were co-isolated first in 1965, by using a combination of fractional melting and fractional distillation. The cis isomer's ASHRAE number is R-1112c, and its CAS number is 311-81-9. Its melting point is −119.6 °C (−183.3 °F). The trans isomer's ASHRAE number is R-1112t, and its CAS number is 381-71-5. Its melting point is −93.3 °C (−135.9 °F). The diastereomers are commercially only available as a mixtures of varying proportions.
- http://www.buyersguidechem.com/chemical_supplier/1,1-Dichlorodifluoroethylene.php retrieved 26 December 2013
- http://www.google.nl/patents/US5118888 retrieved 26 December 2013
- Craig, Norman C.; Evans, David A. (5 October 1965). "Infrared and Raman spectra of cis- and trans-1,2-dichloro-1,2-difluoroethylene". Journal of the American Chemical Society (PDF) (ACS Publications) 87 (19): 4223–4230. doi:10.1021/ja00947a001.