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Author(s):   Giri, B.R.; Roscoe, J.A.; Gonzalez-Garcia, N.; Olzmann, M.
Title:   Experimental and Theoretical Analysis of the Kinetics of the Reaction of Atomic Bromine with 1,4-Dioxane
Journal:   J. Phys. Chem. A
Volume:   114
Page(s):   291 - 298
Year:   2010
Reference type:   Journal article
Squib:   2010GIR/ROS291-298

Reaction:   1,4-Dioxane + Br· → Products
Reaction order:   2
Temperature:   297 - 338 K
Pressure:  0.27 - 1.09 bar
Rate expression:   1.4x10-11 [±1.0x10-11 cm3/molecule s] e-23000 [±1800 J/mole]/RT
Uncertainty:   1.10000002
Category:  Experiment
Data type:   Relative value normalized by a reference value
Pressure dependence:   Rate constant is pressure independent
Experimental procedure:   Static or low flow - Data taken vs time
Excitation technique:   Direct photolysis
Time resolution:   By end product analysis
Analytical technique:   Gas chromatography
Comments:   Two reference compounds were used in relative rate measurements: isooctane and isobutane. The reported uncertainties of the Arrhenius parameters represent one standard deviation. The experimental precision of the rate coefficients obtained at a given temperature was approximately 10%. Experiments were performed in a bath of argon containing up to 210 Torr of O2 at total pressures between 200 and 820 Torr. The rate coefficients were not affected by changes in pressure or O2 concentration over the range of experimental conditions.

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Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [cm3/molecule s]
297 1.26E-15
300 1.39E-15
325 2.82E-15
338 3.91E-15