Manganese-Catalyzed Autoxidation of Dissolved Sulfur Dioxide in the Atmospheric Aqueous Phase
(1995) In Atmospheric Environment 29(12). p.1379-1391- Abstract
- Autoxidation of SO2(aq) in the presence of manganese(II) is one of the important pathways for sulfuric acid formation in atmospheric clouds and fogs. Recent experimental results indicating that the catalyzed reaction takes place via a complex free-radical mechanism are discussed. Previous literature is reviewed in the light of this mechanism. Under atmospheric conditions of low total concentrations of manganese(II) ( < 2 × 10−5 M) and sulfur(IV) ( ≤ 10−5 M) and 2.5 < pH < 5, the rate law for conversion of SO2(aq) to SO3(aq) is reduced to d[S(IV)]/dt = k[Mn(II)][S(IV)], where [S(IV)] denotes the total concentration. A value of the overall rate constant k of 1.4 × 103 M−1s−1 is recommended for use in atmospheric model calculations.
- Abstract (Swedish)
- Autoxidation of SO2(aq) in the presence of manganese(II) is one of the important pathways for sulfuric acid formation in atmospheric clouds and fogs. Recent experimental results indicating that the catalyzed reaction takes place via a complex free-radical mechanism are discussed. Previous literature is reviewed in the light of this mechanism. Under atmospheric conditions of low total concentrations of manganese(II) ( < 2 × 10−5 M) and sulfur(IV) ( ≤ 10−5 M) and 2.5 < pH < 5, the rate law for conversion of SO2(aq) to SO3(aq) is reduced to d[S(IV)]/dt = k[Mn(II)][S(IV)], where [S(IV)] denotes the total concentration. A value of the overall rate constant k of 1.4 × 103 M−1s−1 is recommended for use in atmospheric model... (More)
- Autoxidation of SO2(aq) in the presence of manganese(II) is one of the important pathways for sulfuric acid formation in atmospheric clouds and fogs. Recent experimental results indicating that the catalyzed reaction takes place via a complex free-radical mechanism are discussed. Previous literature is reviewed in the light of this mechanism. Under atmospheric conditions of low total concentrations of manganese(II) ( < 2 × 10−5 M) and sulfur(IV) ( ≤ 10−5 M) and 2.5 < pH < 5, the rate law for conversion of SO2(aq) to SO3(aq) is reduced to d[S(IV)]/dt = k[Mn(II)][S(IV)], where [S(IV)] denotes the total concentration. A value of the overall rate constant k of 1.4 × 103 M−1s−1 is recommended for use in atmospheric model calculations.
Keywords
Autoxidation; catalysis; manganese; sulfur dioxide; radicals; synergism; atmospheric droplets (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7870b827-3c89-42ac-a4c3-0583a98a75e6
- author
- Berglund, Johan and Elding, Lars Ivar LU
- organization
- publishing date
- 1995-01-09
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Autoxidation, Catalysis, Manganese, Sulfur dioxide, Radicals, Synergism, Atmospheric droplets, Autoxidation, Catalysis, Manganese, Sulfur dioxide, Radicals, Synergism, Atmospheric droplets, Sulfuric acid formation, Acid rain
- in
- Atmospheric Environment
- volume
- 29
- issue
- 12
- pages
- 12 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:0028989372
- ISSN
- 1352-2310
- DOI
- 10.1016/1352-2310(95)91318-M
- language
- English
- LU publication?
- yes
- id
- 7870b827-3c89-42ac-a4c3-0583a98a75e6
- date added to LUP
- 2017-01-04 21:57:10
- date last changed
- 2021-01-03 07:13:51
@article{7870b827-3c89-42ac-a4c3-0583a98a75e6, abstract = {{Autoxidation of SO2(aq) in the presence of manganese(II) is one of the important pathways for sulfuric acid formation in atmospheric clouds and fogs. Recent experimental results indicating that the catalyzed reaction takes place via a complex free-radical mechanism are discussed. Previous literature is reviewed in the light of this mechanism. Under atmospheric conditions of low total concentrations of manganese(II) ( < 2 × 10−5 M) and sulfur(IV) ( ≤ 10−5 M) and 2.5 < pH < 5, the rate law for conversion of SO2(aq) to SO3(aq) is reduced to d[S(IV)]/dt = k[Mn(II)][S(IV)], where [S(IV)] denotes the total concentration. A value of the overall rate constant k of 1.4 × 103 M−1s−1 is recommended for use in atmospheric model calculations.}}, author = {{Berglund, Johan and Elding, Lars Ivar}}, issn = {{1352-2310}}, keywords = {{Autoxidation; Catalysis; Manganese; Sulfur dioxide; Radicals; Synergism; Atmospheric droplets; Autoxidation; Catalysis; Manganese; Sulfur dioxide; Radicals; Synergism; Atmospheric droplets; Sulfuric acid formation; Acid rain}}, language = {{eng}}, month = {{01}}, number = {{12}}, pages = {{1379--1391}}, publisher = {{Elsevier}}, series = {{Atmospheric Environment}}, title = {{Manganese-Catalyzed Autoxidation of Dissolved Sulfur Dioxide in the Atmospheric Aqueous Phase}}, url = {{http://dx.doi.org/10.1016/1352-2310(95)91318-M}}, doi = {{10.1016/1352-2310(95)91318-M}}, volume = {{29}}, year = {{1995}}, }