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Chemical Sciences Division
Gierczak, T.; Gilles, M.K.; Bauerle, S.; Ravishankara, A.R.|
Reaction of hydroxyl radical with acetone. 1. Kinetics of the reactions of OH, OD, and (OH)-O18 with acetone and acetone-d6
J. Phys. Chem. A
5014 - 5020
Acetone + ·OH → Products
199 - 383
Pressure: 1.33E-3 - 0.65 bar
no rate data available
Absolute value measured directly
Rate constant is pressure independent
Static or low flow - Data taken vs time
Flash photolysis (laser or conventional)
In real time
Laser induced fluorescence
The rate coefficient for the reaction of OH with acetone, k1, was measured by producing OH via pulsed laser photolysis and detecting it via laser-induced fluorescence to be
k1(T) = 1.38*10-13 + 3.86*10-11*exp(-1997/T) cm3/( molecule s).
The rate constant at T = 298 k is determined as:
k1(298) = (1.77 ?0.16)*10-13, cm3/( molecule s)
The quoted uncertainty is 9% at the 95% confidence level and includes the estimated systematic error.
He, N2, SF6 were used as bath gases with the total pressure range between 25 Torr to 490 Torr.
The discharge flow measurements were also done at the pressure between 1.1 Torr and 3 Torr; at temperatures 238 K, 296 K, 333 K, and 353 K.
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