Rate constant for the reaction of OH radicals with diacetylene at 297 ± 2K

Abstract

By using a relative rate technique, the rate constant for the gas phase reaction of OH radicals with diacetylene, a reaction considered to be of importance in fuel-rich acetylene oxidation, has been determined at 297 ± 2K and atmospheric presure. On the basis of a rate constant for the reaction of OH radicals with n-butane of 2.58 × 10 −12 cm 3 molecule −1 s −1, a rate constant for the reaction of OH radicals with diacetylene of (1.62 ± 0.06) × 10 −11 cm 3 molecule −1 s −1 was obtained, where the error limit does not take into account the uncertainties in the rate constant for the reaction of OH radicals with n-butane.