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Author(s):   Tyndall, G.S.; Orlando, J.J.; Wallington, T.J.; Hurley, M.D.; Goto, M.; Kawasaki, M.
Title:   Mechanism of the Reaction of OH Radicals with Acetone and Acetaldehyde at 251 and 296 K
Journal:   Phys. Chem. Chem. Phys.
Volume:   4
Page(s):   2189 - 2193
Year:   2002
Reference type:   Journal article
Squib:   2002TYN/ORL2189-2193

Reaction:   (CH3)2CO + ·OHCH3C(O)CH2(·) + H2O
Reaction order:   2
Reference reaction:   (CH3)2CO + ·OH → Products
Reference reaction order:   2
Temperature:   251 - 296 K
Pressure:  0.93 bar
Rate expression:   9.0x10-1
Rate constant is a lower limit.
Category:  Experiment
Data type:   Mechanistic information only
Pressure dependence:   None reported
Experimental procedure:   Static or low flow - Data taken vs time
Excitation technique:   Direct photolysis
Time resolution:   By end product analysis
Analytical technique:   Fourier transform (FTIR)
Comments:   The authors conclude that their data show the reaction to proceed by at least 90% H abstraction with no more than a 10% contribution from OH addition to the carbonyl group. No products expected from OH addition were observed. No direct formation of either formic or acetic acid was observed.

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