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Transition Metal Ions in Atmospheric Waters. 4.1 Metal Ion Catalyzed Autoxidation of Dissolved Sulfur Dioxide

Berglund, Johan and Elding, Lars Ivar LU (1997) In Transport and Chemical Transformation of Pollutants in the Troposphere, Vol.2 p.97-104
Abstract
The overall kinetics for manganese(II/III) catalyzed autoxidation of dissolved sulfur dioxide has been studied by UV-vis spectrophotometry. A free-radical mechanism has been proposed, and the rate constant for one of the key reactions between manganese(II) and peroxomonosulfate has been determined by pulse radiolysis. Previous literature on manganese catalyzed autoxidation of SO2(aq) has been thoroughly discussed and explanations of some of the earlier discrepancies is offered. The oxidation of SO2(aq) by complexes of Pt(IV), Au(III) and Tl(III) has also been investigated. These two-electron oxidants oxidize SO2(aq) only in stoichiometric amounts and show no catalytic activity. The mechanistic differences observed between one- and... (More)
The overall kinetics for manganese(II/III) catalyzed autoxidation of dissolved sulfur dioxide has been studied by UV-vis spectrophotometry. A free-radical mechanism has been proposed, and the rate constant for one of the key reactions between manganese(II) and peroxomonosulfate has been determined by pulse radiolysis. Previous literature on manganese catalyzed autoxidation of SO2(aq) has been thoroughly discussed and explanations of some of the earlier discrepancies is offered. The oxidation of SO2(aq) by complexes of Pt(IV), Au(III) and Tl(III) has also been investigated. These two-electron oxidants oxidize SO2(aq) only in stoichiometric amounts and show no catalytic activity. The mechanistic differences observed between one- and two-electron oxidants are fruitful in order to explain the lack of catalytic activity of some atmospherically important metal ions like Ni(II). (Less)
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author
organization
publishing date
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Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Sulfur dioxide, Atmospheric Water, Autoxidation, Catalysis, Transition metal ions, Sulfur dioxide, Autoxidation, Troposphere, Atmospheric droplets, Transition metal ions, Catalysis, Manganese(II/III)
in
Transport and Chemical Transformation of Pollutants in the Troposphere, Vol.2
editor
Warneck, P. and
pages
97 - 104
publisher
Springer Verlag
ISBN
3-540-60792-7
DOI
10.1007/978-3-642-61445-3_4
language
English
LU publication?
yes
id
e466aa48-ed4b-43b6-b095-a0120479f5ae
date added to LUP
2017-01-08 17:43:07
date last changed
2017-06-08 13:34:19
@inbook{e466aa48-ed4b-43b6-b095-a0120479f5ae,
  abstract     = {The overall kinetics for manganese(II/III) catalyzed autoxidation of dissolved sulfur dioxide has been studied by UV-vis spectrophotometry. A free-radical mechanism has been proposed, and the rate constant for one of the key reactions between manganese(II) and peroxomonosulfate has been determined by pulse radiolysis. Previous literature on manganese catalyzed autoxidation of SO2(aq) has been thoroughly discussed and explanations of some of the earlier discrepancies is offered. The oxidation of SO2(aq) by complexes of Pt(IV), Au(III) and Tl(III) has also been investigated. These two-electron oxidants oxidize SO2(aq) only in stoichiometric amounts and show no catalytic activity. The mechanistic differences observed between one- and two-electron oxidants are fruitful in order to explain the lack of catalytic activity of some atmospherically important metal ions like Ni(II).},
  author       = {Berglund, Johan and Elding, Lars Ivar},
  editor       = {Warneck, P.},
  isbn         = {3-540-60792-7},
  keyword      = {Sulfur dioxide,Atmospheric Water,Autoxidation,Catalysis,Transition metal ions,Sulfur dioxide,Autoxidation,Troposphere,Atmospheric droplets,Transition metal ions,Catalysis,Manganese(II/III)},
  language     = {eng},
  pages        = {97--104},
  publisher    = {Springer Verlag},
  series       = {Transport and Chemical Transformation of Pollutants in the Troposphere, Vol.2},
  title        = {Transition Metal Ions in Atmospheric Waters. 4.1 Metal Ion Catalyzed Autoxidation of Dissolved Sulfur Dioxide},
  url          = {http://dx.doi.org/10.1007/978-3-642-61445-3_4},
  year         = {1997},
}