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Mechanism of isotope exchange reaction between methane and deuterium (1976)

Gardiner, W. C. ; Herrmann, J. M. ; Mallard, W. G. ; [et al.]

New York, NY : Wiley-Blackwell

International Journal of Chemical Kinetics 8 (1976), S. 111-122

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ISSN: 0538-8066

Keywords: Chemistry ; Physical Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The rate of CH4 disappearance in a shock-heated CH4:D2:Ar = 9.70:9.86:80.44 mixture was monitored by coincidence absorption of the 2948 cm-1 He-Ne laser line over the shockfront temperature range of 1900-2300K. Comparison with CH4 pyrolysis results by means of computer simulations suggested that atom and free radical chains are responsible for the homogeneous D/H exchange reaction on CH4.Additional simulations for the experimental conditions of previous single-pulse shock tube experiments led to the recognition of a high sensitivity of the exchange rate to trace amounts of hydrocarbon impurity and to the dissociation rate of CH4.

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/kin.550080112

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