TY - JOUR
T1 - Kinetics of the reaction OH + SO2 in He, N2, and O2 at low pressure
AU - Lee, Yin Yu
AU - Kao, Wen Chuen
AU - Lee, Yuan-Pern
PY - 1990
Y1 - 1990
N2 - The rate constants of the gas-phase reaction of OH with SO2 for M = He, N2, and SO2 have been determined by using the discharge flow/resonance fluorescence technique. The termolecular rate constants (all in units of cm6 molecule-2 s-1) and the corresponding experimental conditions are as follows: k(M=He) = (1.1 ± 0.3) × 10-32 exp[(640 ± 200)/T] (280-413 K, 1-6 Torr); k(M=SO2) = (3.3 ± 1.5) × 10-31 exp[(1055 ± 500)/T] (280-363 K, P < 0.23 Torr); k(M=N2) = (2.4 ± 0.7) × 10-31 (298 K, 0.6-4.5 Torr); the uncertainties represent 95% confidence limits. The rate constants are in reasonable agreement with Leu's results. The rate constant for M = O2 was also estimated to be (1.0-1.8) × 10-31 cm6 molecule-2 s-1 at 298 K, smaller than previous measurements.
AB - The rate constants of the gas-phase reaction of OH with SO2 for M = He, N2, and SO2 have been determined by using the discharge flow/resonance fluorescence technique. The termolecular rate constants (all in units of cm6 molecule-2 s-1) and the corresponding experimental conditions are as follows: k(M=He) = (1.1 ± 0.3) × 10-32 exp[(640 ± 200)/T] (280-413 K, 1-6 Torr); k(M=SO2) = (3.3 ± 1.5) × 10-31 exp[(1055 ± 500)/T] (280-363 K, P < 0.23 Torr); k(M=N2) = (2.4 ± 0.7) × 10-31 (298 K, 0.6-4.5 Torr); the uncertainties represent 95% confidence limits. The rate constants are in reasonable agreement with Leu's results. The rate constant for M = O2 was also estimated to be (1.0-1.8) × 10-31 cm6 molecule-2 s-1 at 298 K, smaller than previous measurements.
UR - http://www.scopus.com/inward/record.url?scp=33751553279&partnerID=8YFLogxK
U2 - doi.org/10.1021/j100374a035
DO - doi.org/10.1021/j100374a035
M3 - Article
AN - SCOPUS:33751553279
SN - 0022-3654
VL - 94
SP - 4535
EP - 4540
JO - Journal of physical chemistry
JF - Journal of physical chemistry
IS - 11
ER -