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Kinetics and mechanism of the thermal gas-phase reaction between NO2 and trichloroethene at 303–362.2 K

✍ Scribed by J. Czarnowski

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
440 KB
Volume
24
Category
Article
ISSN
0538-8066

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✦ Synopsis

The kinetics of the gas-phase reaction between NO2 and trichloroethene has been investigated in the temperature range 303-362.2 K. The pressure of NO2 was varied betwen 5.1 and 48.7 torr and that of trichloroethene between 7.3 and 69.5 torr. The reaction was homogeneous. Two products were formed: nitrosyl chloride, ClNO, and glyoxyloxyl chloride, HC[OlC[O]Cl, which was identified by its infrared spectrum and its molecular weight determined by chromatography. The rate of consumption of the reactants was independent of the total pressure and can be represented by a second-order reaction:

The following mechanism was proposed to explain the experimental results:

(1)

.

. 02NCHClCC12 + O N ' ' ' Cl 0 . . . CH -ClC, .. 0 ' . A . .

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