Abstract
The absolute rate constants for the gas-phase H-atom abstraction by hydroxyl radicals from cyclohexane and ethane have been determined at room temperature. OH radicals were produced by pulse radiolysis of an H 2O-Ar mixture, and the decay of OH was followed by monitoring the transient light absorption around 309 nm. The rate constants were found to be k = (5.24±0.36) × 10 −12 and (2.98±0.21) × 10 −13 cm 3 molecule −1 s −1 for cyclohexane and ethane, res- pectively. These results are compared with literature data.
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