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Accessibility information
Author(s):   Sivaramakrishnan, R.; Michael, J.V.; Klippenstein, S.J.
Title:   Direct Observation of Roaming Radicals in the Thermal Decomposition of Acetaldehyde
Journal:   J. Phys. Chem. A
Volume:   114
Page(s):   755 - 764
Year:   2010
Reference type:   Journal article
Squib:   2010SIV/MIC755-764

Reaction:   CH3CHO + D → Products
Reaction order:   2
Temperature:   1151 - 4430 K
Pressure:  2.12E-2 bar
Rate expression:   5.2x10-10 [cm3/molecule s] e-36833 [J/mole]/RT
Category:  Experiment
Data type:   Derived from fitting to a complex mechanism
Pressure dependence:   None reported
Experimental procedure:   Shock tube
Excitation technique:   Thermal
Time resolution:   In real time
Analytical technique:   Vis-UV absorption
Comments:   Equation lies within 6% of the data.

View full bibliographic record.

Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [cm3/molecule s]
1151 1.11E-11
1200 1.30E-11
1300 1.72E-11
1400 2.20E-11
1500 2.71E-11
1600 3.26E-11
1700 3.84E-11
1800 4.44E-11
1900 5.05E-11
2000 5.68E-11
2100 6.31E-11
2200 6.94E-11
2300 7.58E-11
2400 8.21E-11
2500 8.84E-11
2600 9.46E-11
2700 1.01E-10
2800 1.07E-10
2900 1.13E-10
3000 1.19E-10
3100 1.25E-10
3200 1.30E-10
3300 1.36E-10
3400 1.41E-10
3500 1.47E-10
3600 1.52E-10
3700 1.57E-10
3800 1.62E-10
3900 1.67E-10
4000 1.72E-10
4100 1.77E-10
4200 1.81E-10
4300 1.86E-10
4400 1.90E-10
4430 1.91E-10