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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 + ·OH → CH3C(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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