Difluoroacetylene
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| General | |||||||||||||
| Surname | Difluoroacetylene | ||||||||||||
| other names |
Difluoroethine |
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| Molecular formula | C 2 F 2 | ||||||||||||
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| properties | |||||||||||||
| Molar mass | 62.019 g mol −1 | ||||||||||||
| Physical state |
gaseous |
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| density |
1100 ± 100 kg m −3 |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | |||||||||||||
Difluoroacetylene is the perfluorocarbon equivalent of ethyne (C 2 H 2 ). The molecule, which is linear like ethyne, is difficult to produce, with a high risk of explosion and low yields.
Extraction and presentation
Difluoroacetylene can be obtained by vacuum pyrolysis of 4,5,6-trifluoro-1,2,3-triazine at 700 ° C.
properties
Difluoroacetylene is a highly volatile compound that condenses at liquid nitrogen temperature. It is extremely unstable and quickly disintegrates at room temperature. Even in condensed form at −196 ° C, the compound slowly disintegrates.
Individual evidence
- ^ Entry on difluoroacetylene in the ChemSpider database of the Royal Society of Chemistry
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ↑ a b Armin de Meijere: Science of Synthesis: Houben-Weyl Methods of Molecular Transformations Vol. 24 Three Carbon-Heteroatom Bonds: Ketene Acetals and Yne-X Compounds . Georg Thieme Verlag, 2014, ISBN 3-13-178171-8 , p. 1177 ( limited preview in Google Book search).