Kinetic study of the reactions of the hydroxyl radical with ethane and propane

Abstract

AbstractAbsolute rate coefficients for the reactions of the hydroxyl radical with ethane (k1, 297–300 K) and propane (k2, 297–690 K) were measured using the flash photolysis–resonance fluorescence technique. The rate coefficient data were fit by the following temperature‐dependent expressions, in units of cm3/molecule·s: k1(T) = 1.43 × 10−14T1.05 exp (−911/T) and k2(T) = 1.59 × 10−15T1.40 exp (‐428/T). Semiquantitative separation of OH‐propane reactivity into primary and secondary H‐atom abstraction channels was obtained.