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Author(s):   Tang, Y.X.; Tyndall, G.S.; Orlando, J.J.
Title:   Spectroscopic and Kinetic Properties of HO2 Radicals and the Enhancement of the HO2 Self Reaction by CH3OH and H2O
Journal:   J. Phys. Chem. A
Volume:   114
Page(s):   369 - 378
Year:   2010
Reference type:   Journal article
Squib:   2010TAN/TYN369-378

Reaction:   CH3OH + HO2 + HO2 → Products + CH3OH
Reaction order:   2
Temperature:   253 - 323 K
Pressure:  4.00E-2 bar
Rate expression:   3.9x10-35 [±1.87x10-35 cm3/molecule s] e32002 [±1122 J/mole]/RT
Category:  Experiment
Data type:   Absolute value measured directly
Pressure dependence:   None reported
Experimental procedure:   Static or low flow - Data taken vs time
Excitation technique:   Flash photolysis (laser or conventional)
Time resolution:   In real time
Analytical technique:   IR absorption
Comments:   This is the rate constant of the enhancement of the rate of the HO2 + HO2 reaction due to the presence of methanol vapor. The error quoted is the 1-σ deviation of the linear fit only. O2 constituted a significant fraction of the bath gas.

View full bibliographic record.

Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [cm3/molecule s]
253 1.58E-28
275 4.67E-29
300 1.46E-29
323 5.84E-30