Evaluated and estimated kinetic data for phase reactions of the hydroperoxyl radical

Abstract

Abstract Methods are discussed for the production and detection of the hydroperoxyl radical for use in gas phase kinetic studies. Rate constants for gas phase reactions of the hydroperoxyl radical with itself, H 2 , H 2 O, CO, NO, SO 2 , O 3 , C 2 H 6 , C 3 H 8 , i ‐and n ‐C 4 H 10 , C 2 H 4 , i ‐C 4 H 8 , HCHO, C 2 H 5 CHO, n ‐C 3 H 7 CHO, Br, O, OH, and H are critically evaluated. Recommended or estimated rate constant expressions with associated error limits are given applicable over specified temperature ranges (normally 300–1000°K). The reactivity of HO 2 compared with OH, O, H, F, Cl, Br, CH 3 , and CH 3 O is presented in tabular form and the implications for atmospheric chemistry are discussed.