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Kinetics of the reaction between methane and iodine from 830 to 1150 K in the presence and absence of oxygen

✍ Scribed by Steven P. Pardini; Don S. Martin

Publisher: John Wiley and Sons
Year: 1983
Tongue: English
Weight: 700 KB
Volume: 15
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550151007

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✦ Synopsis

The formation of methyl iodide was determined by radiochemical methods and by massspectroscopic analyses in mixtures of Ar-CH4-12 and Ar-CH4-12-02, heated by a reflected shock wave to temperatures of 830-1150 K. The rate of formation of CH3I was consistent with the chain mechanism

where the indicated rate constant for reaction between I and CH4 is given by k2(cm3/mol s) = 1014.17 exp(-32.9 f 0.8 kcal/mol/RT). No effect on the reaction rate by the presence of 0 2 was detected. However, in one experiment at 1097 K with 3.86 mol ' % 0 2 the formation of CHzO was indicated by the mass-spectroscopic analysis, presumably from the reaction of 0 2 with CH3.

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