ISSN:
0538-8066
Keywords:
Chemistry
;
Physical Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The formation of methyl iodide was determined by radiochemical methods and by massspectroscopic analyses in mixtures of Ar-CH4-I2 and Ar—CH4—I2—O2, heated by a reflected shock wave to temperatures of 830-1150 K. The rate of formation of CH3I was consistent with the chain mechanism \documentclass{article}\pagestyle{empty}\begin{document}$$\begin{array}{l} {\rm I} + {\rm CH}_4 \to {\rm CH}_3 + {\rm HI} \\ {\rm CH}_3 + {\rm I}_2 \to {\rm CH}_3 {\rm I} + {\rm I} \\ \end{array}$$\end{document} where the indicated rate constant for reaction between I and CH4 is given by k2(cm3/mol · s) = 1014.17 exp(-32.9 ± 0.8 kcal/mol/RT). No effect on the reaction rate by the presence of O2 was detected. However, in one experiment at 1097 K with 3.86 mol % O2 the formation of CH2O was indicated by the mass-spectroscopic analysis, presumably from the reaction of O2 with CH3.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/kin.550151007
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