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Author(s):   Hwang, S.M.; Cooke, J.A.; Dewitt, K.J.; Rabinowitz, M.J.
Title:   Determination of the Rate Coefficients of the SO2 + O + M -> SO3 + M Reaction
Journal:   Int. J. Chem. Kinet.
Volume:   42
Page(s):   168 - 180
Year:   2010
Reference type:   Journal article
Squib:   2010HWA/COO168-180

Reaction:   HO2 + SO2·OH + SO3
Reaction order:   2
Temperature:   970 - 2500 K
Pressure:  9.76E13 bar
Rate expression:   2.26x10-13 [cm3/molecule s] e-28435 [J/mole]/RT
Uncertainty:   1.29999995
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:   OH temporal profiles were then measured using laser absorption spectroscopy. Estimated error limits are ± 30%.

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Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [cm3/molecule s]
970 6.65E-15
1000 7.39E-15
1100 1.01E-14
1200 1.31E-14
1300 1.63E-14
1400 1.96E-14
1500 2.31E-14
1600 2.66E-14
1700 3.02E-14
1800 3.38E-14
1900 3.73E-14
2000 4.08E-14
2100 4.43E-14
2200 4.77E-14
2300 5.11E-14
2400 5.43E-14
2500 5.75E-14