A shock tube study of the reaction of the hydroxyl radical with H₂, CH₄, c‐C₅H₁₀, and i‐C₄H₁₀

Reactions of the hydroxyl radical, OH, with several reactants have been studied near 1200 K in shock tube experiments in which UV absorption was used to monitor the OH concentration. The values of the rate coefficients were found to be 2.7 × 10 12 , 2.6 × 10 12 , 2.8 × 10 13 , and 1.26 × 10 13 cm 3 /mol‐s for the reactions of OH with hydrogen, methane, cyclopentane, and isobutane, respectively. These measured values are compared with previous experimental results and transition‐state theory calculations.