Kinetics and mechanism of the oxidation of dimethylsulfoxide (DMSO) and methanesulfinate (MSI-) by OH radicals in aqueous medium

H. Bardouki; Marcelo Barcellos Da Rosa; Nikos Mihalopoulos; Wolf-Ulrich Palm; Cornelius Zetzsch

doi:10.1016/S1352-2310(02)00460-0

Kinetics and mechanism of the oxidation of dimethylsulfoxide (DMSO) and methanesulfinate (MSI-) by OH radicals in aqueous medium

H. Bardouki
, Marcelo Barcellos Da Rosa
, Nikos Mihalopoulos
, Wolf-Ulrich Palm
, Cornelius Zetzsch

Research output: Journal contributions › Journal articles › Research › peer-review

93 Citations (Scopus)

Abstract

Kinetics and product distribution of the reaction of dimethylsulfoxide (DMSO) and methanesulfinate (MSI ^-) with OH radicals and H ₂O ₂ in the aqueous phase are reported in this work. DMSO is found to be very stable in pure water or in solutions containing H ₂O ₂. On the other hand, it reacts very rapidly (k=4.5×10 ⁹M ^-1s ^-1) with OH radicals. MSI ^- has been identified as the main intermediate product, while methanesulfonate (MS ^-) and sulfate were the final products due to the very fast reaction of MSI ^- with OH radicals (k=1.2×10 ¹⁰M ^-1s ^-1). MS ^- has been identified as the major end product (yield higher than 95%) of both DMSO and MSI ^- reactions by OH radicals in aqueous solutions. The potential implications of these reactions for the biogenic sulfur cycle in the atmosphere are presented and discussed.

Original language	English
Journal	Atmospheric Environment
Volume	36
Issue number	29
Pages (from-to)	4627-4634
Number of pages	8
ISSN	1352-2310
DOIs	https://doi.org/10.1016/S1352-2310(02)00460-0
Publication status	Published - 01.10.2002

Bibliographical note

Funding Information:
We thank the European Commission, DOMAC (ENV4-CT97-0410) and EL-CID (ENK2-CT-1999-00033) projects for financial support and M. Kanakidou and an unknown reviewer for helpful remarks. M. Barcellos da Rossa thanks the DAAD for a stipend.

Research areas and keywords

Chemistry
Sulfur cycle
Photo-oxidation
Heterogeneous reactions
DMS
DMSO
MSIA
MSA
OH

ASJC Scopus Subject Areas

Atmospheric Science
Environmental Science(all)

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10.1016/S1352-2310(02)00460-0

Cite this

@article{4ef74850f08643cc82170768cb944d4c,

title = "Kinetics and mechanism of the oxidation of dimethylsulfoxide (DMSO) and methanesulfinate (MSI-) by OH radicals in aqueous medium",

abstract = "Kinetics and product distribution of the reaction of dimethylsulfoxide (DMSO) and methanesulfinate (MSI -) with OH radicals and H 2O 2 in the aqueous phase are reported in this work. DMSO is found to be very stable in pure water or in solutions containing H 2O 2. On the other hand, it reacts very rapidly (k=4.5×10 9M -1s -1) with OH radicals. MSI - has been identified as the main intermediate product, while methanesulfonate (MS -) and sulfate were the final products due to the very fast reaction of MSI - with OH radicals (k=1.2×10 10M -1s -1). MS - has been identified as the major end product (yield higher than 95\%) of both DMSO and MSI - reactions by OH radicals in aqueous solutions. The potential implications of these reactions for the biogenic sulfur cycle in the atmosphere are presented and discussed.",

keywords = "Chemistry, Sulfur cycle, Photo-oxidation, Heterogeneous reactions, DMS, DMSO, MSIA, MSA, OH",

author = "H. Bardouki and \{Barcellos Da Rosa\}, Marcelo and Nikos Mihalopoulos and Wolf-Ulrich Palm and Cornelius Zetzsch",

note = "Funding Information: We thank the European Commission, DOMAC (ENV4-CT97-0410) and EL-CID (ENK2-CT-1999-00033) projects for financial support and M. Kanakidou and an unknown reviewer for helpful remarks. M. Barcellos da Rossa thanks the DAAD for a stipend.",

year = "2002",

month = oct,

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doi = "10.1016/S1352-2310(02)00460-0",

language = "English",

volume = "36",

pages = "4627--4634",

journal = "Atmospheric Environment",

issn = "1352-2310",

publisher = "Elsevier Ltd",

number = "29",

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TY - JOUR

T1 - Kinetics and mechanism of the oxidation of dimethylsulfoxide (DMSO) and methanesulfinate (MSI-) by OH radicals in aqueous medium

AU - Bardouki, H.

AU - Barcellos Da Rosa, Marcelo

AU - Mihalopoulos, Nikos

AU - Palm, Wolf-Ulrich

AU - Zetzsch, Cornelius

N1 - Funding Information: We thank the European Commission, DOMAC (ENV4-CT97-0410) and EL-CID (ENK2-CT-1999-00033) projects for financial support and M. Kanakidou and an unknown reviewer for helpful remarks. M. Barcellos da Rossa thanks the DAAD for a stipend.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - Kinetics and product distribution of the reaction of dimethylsulfoxide (DMSO) and methanesulfinate (MSI -) with OH radicals and H 2O 2 in the aqueous phase are reported in this work. DMSO is found to be very stable in pure water or in solutions containing H 2O 2. On the other hand, it reacts very rapidly (k=4.5×10 9M -1s -1) with OH radicals. MSI - has been identified as the main intermediate product, while methanesulfonate (MS -) and sulfate were the final products due to the very fast reaction of MSI - with OH radicals (k=1.2×10 10M -1s -1). MS - has been identified as the major end product (yield higher than 95%) of both DMSO and MSI - reactions by OH radicals in aqueous solutions. The potential implications of these reactions for the biogenic sulfur cycle in the atmosphere are presented and discussed.

AB - Kinetics and product distribution of the reaction of dimethylsulfoxide (DMSO) and methanesulfinate (MSI -) with OH radicals and H 2O 2 in the aqueous phase are reported in this work. DMSO is found to be very stable in pure water or in solutions containing H 2O 2. On the other hand, it reacts very rapidly (k=4.5×10 9M -1s -1) with OH radicals. MSI - has been identified as the main intermediate product, while methanesulfonate (MS -) and sulfate were the final products due to the very fast reaction of MSI - with OH radicals (k=1.2×10 10M -1s -1). MS - has been identified as the major end product (yield higher than 95%) of both DMSO and MSI - reactions by OH radicals in aqueous solutions. The potential implications of these reactions for the biogenic sulfur cycle in the atmosphere are presented and discussed.

KW - Chemistry

KW - Sulfur cycle

KW - Photo-oxidation

KW - Heterogeneous reactions

KW - DMS

KW - DMSO

KW - MSIA

KW - MSA

KW - OH

UR - https://www.scopus.com/pages/publications/0346460947

U2 - 10.1016/S1352-2310(02)00460-0

DO - 10.1016/S1352-2310(02)00460-0

M3 - Journal articles

SN - 1352-2310

VL - 36

SP - 4627

EP - 4634

JO - Atmospheric Environment

JF - Atmospheric Environment

IS - 29

ER -

Kinetics and mechanism of the oxidation of dimethylsulfoxide (DMSO) and methanesulfinate (MSI-) by OH radicals in aqueous medium

Abstract

Bibliographical note

Research areas and keywords

ASJC Scopus Subject Areas

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