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Author(s):   Riffault, V.; Bedjanian, Y.; Le Bras, G.
Title:   Kinetics and Mechanism of the Reaction of Cl Atoms with HO2 Radicals
Journal:   Int J. Chem. Kinet.
Volume:   33
Page(s):   587 - 599
Year:   2001
Reference type:   Journal article
Squib:   2001RIF/BED587-599

Reaction:   HO2 + ·Cl·OH + ClO
Reaction order:   2
Temperature:   230 - 360 K
Pressure:  1.33E-3 bar
Rate expression:   8.6x10-11 [±3.2x10-11 cm3/molecule s] e-4989 [±831 J/mole]/RT
Category:  Experiment
Data type:   Derived from fitting to a complex mechanism
Pressure dependence:   None reported
Experimental procedure:   Flow tube - Data taken vs distance
Excitation technique:   Discharge
Time resolution:   In real time
Analytical technique:   Mass spectrometry
Comments:   Reaction studied under both conditions of excess Cl-atoms and excess HO2.

Cl atoms generated primarily by the reaction of H with Cl2; HO2 generated by the reaction of F with H2O2. Additional trace active species measured by addition of Br2.

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Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [cm3/molecule s]
230 6.33E-12
250 7.80E-12
275 9.70E-12
300 1.16E-11
325 1.36E-11
350 1.55E-11
360 1.62E-11