Rate Constants for the Reactions of Hydroxyl and Hydroperoxyl Radicals with Ozone

Science  18 May 1973:
Vol. 180, Issue 4087, pp. 735-737
DOI: 10.1126/science.180.4087.735


Chain decomposition of ozone by hydroxyl and hydroperoxyl radicals has been observed. The rate constant at 3000°K for OH + O3→HO2 + O2 is 8 x 10-14 cubic centimeters per second. The rate constant for HO2 + O3→ OH + 2O2, is 3 x 10-15 cubic centimeters per second. These results have implications concerning stratospheric ozone.