Gas-phase oxidation of SO/sub 2/ in the ozone-olefin reactions

Journal Article · Thu Sep 27 04:00:00 EDT 1984 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j150664a058· OSTI ID:6309911

Hatakeyama, S; Kobayashi, H; Akimoto, H

Gas-phase oxidation of SO/sub 2/ in the ozone-olefin reactions was studied, and the yield of sulfuric acid aerosol was determined for various types of olefins under atmospheric pressure. No sulfur-containing compounds other than sulfuric acid was detected. Pressure dependence of the yield of H/sub 2/SO/sub 4/ was studied for the first time for trans-2-butene. The yield decreased to zero as the total pressure of air was decreased. This fact supports the contention that only a stabilized Criegee intermediate can undergo bimolecular reactions. Stabilized fractions of CH/sub 2/O0 and CH/sub 3/CHOO in the ozone reaction of ethylene and trans-2-butene under atmospheric pressure are 0.390 +/- 0.053 and 0.185 +/- 0.028, respectively. The yield of H/sub 2/SO/sub 4/ was as low as 0.052 +/- 0.013, 0.032 +/- 0.024, and 0.029 +/- 0.015 for cyclopentane, cyclohexene, and cycloheptene, respectively. The yield of H/sub 2/SO/sub 4/ for ..cap alpha..- and ..beta..-pinene was 0.125 +/- 0.040 and 0.249 +/- 0.024, respectively. The rate constant ratio of decomposition of the initially formed hot Criegee intermediate to its collisional stabilization was obtained to be (3.9 +/- 0.8) x 10/sup 18/ molecules/cm/sup 3/ for trans-2-butene.

• Research Organization: National Inst. for Environmental Studies, Tsukuba-gakuen, Ibaraki, Japan
• OSTI ID: 6309911
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 88:20; ISSN JPCHA
• Country of Publication: United States
• Language: English

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54 ENVIRONMENTAL SCIENCES
AEROSOLS
ALKENES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COLLOIDS
DATA
DISPERSIONS
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
OZONE
PRESSURE EFFECTS
REACTION KINETICS
SOLS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SULFURIC ACID