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Mn(II) Oxidation in the Presence of Lepidocrocite: The Influence of Other Ions

Davies, Simon H. R. (1987) Mn(II) Oxidation in the Presence of Lepidocrocite: The Influence of Other Ions. In: Geochemical Processes at Mineral Surfaces. ACS Symposium Series. No.323. American Chemical Society , Washington, DC, pp. 487-502. ISBN 9780841210042.

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Mn(II) oxidation is enhanced in the presence of lepidocrocite (γ-FeOOH). The oxidation of Mn(II) on γ-FeOOH can be understood in terms of the coupling of surface coordination processes and redox reactions on the surface. Ca^(2+), Mg^(2+), Cl^- , SO_4^(2-), phosphate, silicate, salicylate, and phthalate affect Mn(II) oxidation in the presence of γ-FeOOH. These effects can be explained in terms of the influence these ions have on the binding of Mn(II) species to the surface. Extrapolation of the laboratory results to the conditions prevailing in natural waters predicts that the factors which most influence Mn(II) oxidation rates are pH, temperature, the amount of surface, ionic strength, and Mg^(2+) and Cl^- concentrations.

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Additional Information:© 1986 American Chemical Society. Received June 25, 1986. Published in print 13 November 1987. I would like to thank Dr. J.J. Morgan for his advice and contributions to this work. I also thank the Jessie Smith Noyes Foundation and the Office of Ocean Assessment, Ν0ΑΑ for financial support.
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Jessie Smith Noyes FoundationUNSPECIFIED
National Oceanic and Atmospheric Administration (NOAA)UNSPECIFIED
Series Name:ACS Symposium Series
Issue or Number:323
Record Number:CaltechAUTHORS:20180405-071624344
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Official Citation:Mn(II) Oxidation in the Presence of Lepidocrocite: The Influence of Other Ions Simon H. R. Davies Geochemical Processes at Mineral Surfaces. November 13, 1987 , 487-502 DOI:10.1021/bk-1987-0323.ch023
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:85627
Deposited By: Ruth Sustaita
Deposited On:05 Apr 2018 21:04
Last Modified:15 Nov 2021 20:30

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