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Kinetics of the reaction between OH radicals and monochlorodimethylsulphide (CH3SCH2Cl)

Kinetics of the reaction between OH radicals and monochlorodimethylsulphide (CH3SCH2Cl)
Kinetics of the reaction between OH radicals and monochlorodimethylsulphide (CH3SCH2Cl)
The gas-pliase rate coefficient for the reaction between OH radicals and CH3SCH2Cl (MCDMS) was determined to be (2.5 +/- 1.3) x 10(-12) cm(3) molecule(-1) s(-1) using the discharge-flow kinetic technique. An estimate of approximate to 10(-10)cm(3) molecule(-1) s(-1) was obtained for the rate coefficient for reaction of Cl with MCDMS. It would appear that the reaction with OH is not the main loss process for CH3SCH2Cl in the marine boundary layer. The possible implications for the MBL of halogen-promoted oxidation of dimethylsulphide are considered.
marine boundary layer (mbl), dimethylsulphide (dms), hydroxyl radical (oh), atomic chlorine (cl), kinetics, lifetime gas-phase reaction, dimethyl sulfide, molecular chlorine, rate constants, oxygen o(p-3), cl atoms, dms, series, ethers, oxidation
1352-2310
6899-6904
Shallcross, Dudley E.
2beaf7e0-0b00-47d7-86c0-b60470cd6f35
Vaughan, Stewart
2750d9b8-92e9-4295-abaa-e613c8769345
Trease, David R.
58f9fe14-11e7-4e47-aeee-70bb617f6471
Canosa-Mas, Carlos E.
1315b295-c3a1-40d4-88c7-432e24fba176
Ghosh, Mariana V.
210ab8df-8389-4bf5-9622-9931cc4a9f81
Dyke, John M.
46393b45-6694-46f3-af20-d7369d26199f
Wayne, Richard P.
e50e3905-369b-41ce-8d20-85a92447f1aa
Shallcross, Dudley E.
2beaf7e0-0b00-47d7-86c0-b60470cd6f35
Vaughan, Stewart
2750d9b8-92e9-4295-abaa-e613c8769345
Trease, David R.
58f9fe14-11e7-4e47-aeee-70bb617f6471
Canosa-Mas, Carlos E.
1315b295-c3a1-40d4-88c7-432e24fba176
Ghosh, Mariana V.
210ab8df-8389-4bf5-9622-9931cc4a9f81
Dyke, John M.
46393b45-6694-46f3-af20-d7369d26199f
Wayne, Richard P.
e50e3905-369b-41ce-8d20-85a92447f1aa

Shallcross, Dudley E., Vaughan, Stewart, Trease, David R., Canosa-Mas, Carlos E., Ghosh, Mariana V., Dyke, John M. and Wayne, Richard P. (2006) Kinetics of the reaction between OH radicals and monochlorodimethylsulphide (CH3SCH2Cl). Atmospheric Environment, 40 (36), 6899-6904. (doi:10.1016/j.atmosenv.2006.06.037).

Record type: Article

Abstract

The gas-pliase rate coefficient for the reaction between OH radicals and CH3SCH2Cl (MCDMS) was determined to be (2.5 +/- 1.3) x 10(-12) cm(3) molecule(-1) s(-1) using the discharge-flow kinetic technique. An estimate of approximate to 10(-10)cm(3) molecule(-1) s(-1) was obtained for the rate coefficient for reaction of Cl with MCDMS. It would appear that the reaction with OH is not the main loss process for CH3SCH2Cl in the marine boundary layer. The possible implications for the MBL of halogen-promoted oxidation of dimethylsulphide are considered.

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More information

Published date: 2006
Keywords: marine boundary layer (mbl), dimethylsulphide (dms), hydroxyl radical (oh), atomic chlorine (cl), kinetics, lifetime gas-phase reaction, dimethyl sulfide, molecular chlorine, rate constants, oxygen o(p-3), cl atoms, dms, series, ethers, oxidation

Identifiers

Local EPrints ID: 44542
URI: http://eprints.soton.ac.uk/id/eprint/44542
ISSN: 1352-2310
PURE UUID: 876a701f-49bb-4a0b-a9ff-9b74f72839da
ORCID for John M. Dyke: ORCID iD orcid.org/0000-0002-9808-303X

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Date deposited: 07 Mar 2007
Last modified: 10 Dec 2019 01:59

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Contributors

Author: Dudley E. Shallcross
Author: Stewart Vaughan
Author: David R. Trease
Author: Carlos E. Canosa-Mas
Author: Mariana V. Ghosh
Author: John M. Dyke ORCID iD
Author: Richard P. Wayne

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