VUV Flash Photolysis Study of the Reaction of HO with HO2 at 1 atm and 298 K
- 1 July 1982
- journal article
- research article
- Published by Wiley in Berichte der Bunsengesellschaft für physikalische Chemie
- Vol. 86 (7) , 597-602
- https://doi.org/10.1002/bbpc.19820860704
Abstract
Equal concentrations of HO and H were generated by flash photolysing small amounts of H2O diluted in N2 at a pressure of about one atmosphere. Using sensitive detection by resonance absorption, the HO radicals were monitored in the presence and in the absence of O2. In the presence of O2, the radicals were found to disappear significantly faster than in the absence of O2. This enhanced decay is attributed to the fast reaction of HO with HO2. Using simple kinetic arguments and computer modeling, the rate constant, k1, for the title reaction is estimated to be 1.1 · 10−10 cm3 s−1 (+25%; −35%).Keywords
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