Studies on the Reaction of Acetaldehyde and Acetyl Radicals with Atomic Hydrogen

Article abstract of DOI:10.1021/j100371a006

The reaction of acetaldehyde and acetyl radical with atomic hydrogen was studied with a discharge flow tube equipped with an electron-impact mass spectrometer.Experiments were performed under the condition of excess atomic hydrogen at 299 +/- 5 K.A rate constant for the reaction CH3CHO + H -> CH3CO + H2 (1) of (11 +/- 2) * 10^-14 cm³ molecule^-1 s^-1 was obtained.The branching fractions for the subsequent reactions (2a) CH3CO + H -> CH3 + HCO and (2b) CH3CO + H -> CH2CO + H2 are found to be 65 +/- 4percent and 35 +/- 2percent, respectively.