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Author(s):   Mehta, D.; Nguyen, A.; Montenegro, A.; Li, Z.J.
Title:   A Kinetic Study of the Reaction of OH with Xylenes Using the Relative Rate/Discharge Flow/Mass Spectrometry Technique
Journal:   J. Phys. Chem. A
Volume:   113
Page(s):   12942 - 12951
Year:   2009
Reference type:   Journal article
Squib:   2009MEH/NGU12942-12951

Reaction:   1,4-Dimethylbenzene + ·OH → Products
Reaction order:   2
Reference reaction:   1,4-Dioxane + ·OH → Products
Temperature:   240 - 340 K
Pressure:  1.33E-3 - 1.33E-2 bar
Rate expression:   no rate data available
Category:  Experiment
Data type:   Relative value normalized by a reference value
Pressure dependence:   Rate constant is high pressure limit
Experimental procedure:   Static or low flow - Data taken vs time
Excitation technique:   Discharge
Time resolution:   By end product analysis
Analytical technique:   Mass spectrometry
Comments:   The reaction rate constant is independent of temperature below 298 K but exhibits negative temperature dependence at temperatures greater than 298 K. The authors suggest that this effect is due the equilibrium in the addition step shifting toward the reactants at higher temperatures. No Arrhenius parameters were reported.

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