ISSN:
0538-8068
Keywords:
Chemistry
;
Physics Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The thermal decomposition of 1,2-dichloropropane at atmospheric pressure has been studied in the temperature range 227-590°C, in a flow system. Above 450°C, the reaction is homogenous and unimolecular with a rate constant: \documentclass{article}\pagestyle{empty}\begin{document}$$k = 10^{12.95 \pm 0.15} \exp (- 53,070 \pm 500/RT)\sec ^{ - 1}$$\end{document}Below 450°C, a low activation energy, probably heterogenous process competes with the gas phase reactionThe primary reaction products are HCl and the monochloropropene isomers; the relative amounts of each isomer depend on the temperature in the low but not in the high temperature region. The direction of the HCl elimination is discussed in terms of substituent effects at the α- and β-carbon positions and compared with literature data on similar reactionsSecondary products are formed principally by further pyrolysis of allyl chloride. The first-order rate constant of this reaction is given by: \documentclass{article}\pagestyle{empty}\begin{document}$$ k = 10^{8.54 \pm 0.2} \exp (- 37,275 \pm 700/RT)\sec ^{ - 1} $$\end{document}.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/kin.550020206
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