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Thermal gas-phase decomposition of chloroethylenes. II. Vinyl chloride

✍ Scribed by F. Zabel

Publisher
John Wiley and Sons
Year
1977
Tongue
English
Weight
787 KB
Volume
9
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

The thermal gas‐phase decomposition of vinyl chloride has been studied behind shock waves over the temperature range of 1350‐1900°K and the density range of 7 × 10^−7^‐1.5 × 10^−3^ mol/cm^3^ (at 1600°K) in mixtures of C~2~H~3~Cl highly diluted with argon. The ultraviolet absorption of C~2~H~3~C was recorded at 230 nm as a function of time. The decomposition proceeds via molecular elimination of HCl. The unimolecular dissociation rate is pressure dependent at all but the highest pressures applied. Application of modified HKRR theory results in the rate expression
for the limiting high pressure rate constant, and in a collision efficiency of
derived from the limiting low‐pressure rate constant.

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