✦ LIBER ✦

Single pulse shock tube study on the thermal stability of ketones

✍ Scribed by Wing Tsang

Publisher: John Wiley and Sons
Year: 1984
Tongue: English
Weight: 611 KB
Volume: 16
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550161208

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✦ Synopsis

5-Methyl-hexanone-2, 3-methyl-pentanone-2, and hexanone-2 have been decomposed in comparative rate single pulse shock tube experiments. The mechanism of decomposition involves the breaking of carbon-carbon bonds as well as molecular processes involving 6-center complexes. The following rate expressions at 1100 K have been obtained:

These results lead to AHf(CH,CO) = -13.8 kJ and AH,(CH,COCH,.) = -12.6 kJ at 300 K. They are compared with existing literature values and some generalizations are made with regard to the stability of carbonyl compounds.

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