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Chromium(III) Oxidation By .delta.-manganese Oxide (MnO2). 1. Characterization
S. Fendorf, R. Zasoski
Published 1992 · Chemistry
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The oxidation of Cr(III) by a common naturally occurring form of manganese oxide, δ-MnO 2 , was characterized over a range of Cr(III) concentrations and pH values. Cr(III) oxidation was limited as pH and Cr(III) concentrations increased. Reaction products, Mn(II) and Cr(VI), did not limit Cr(III) oxidation. Initial Cr(III) oxidation rates were very rapid at pH=5, but were subsequently followed by a dramatic rate decline. Thermodynamic calculations using solution species indicated the reaction should proceed under conditions where the reaction had terminated
This paper is referenced by
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Pennsauken Township (2010)
Formation of Soluble Mercury Oxide Coatings: Transformation of Elemental Mercury in Soils.
C. Miller (2015)
Assessment and Modelling of the Environmental Chemistry and Potential for Remediative Treatment of Chromium-Contaminated Land
J. Farmer (1999)
Mineralogical characteristics and micromorphological observations of brittle/soft Fe/Mn concretions from Okinawan soils
L. P. Vidhana Arachchi (2004)
Oxidation of Cr(III) in tannery sludge to Cr(VI): field observations and theoretical assessment.
A. D. Apte (2005)
Characterization of the manganese oxide produced by Pseudomonas putida strain MnB1
M. A. Villalobos (2003)
CASE HISTORY OF A COPPER MINE TAILINGS POND RECLAMATION IN DUCKTOWN, TENNESSEE 1
J. Branson (2004)
Transport of ions in quartz sand
Z. Sadowski (2008)
Natural occurrence of hexavalent chromium in a sedimentary aquifer in Urânia, State of São Paulo, Brazil
C. Bourotte (2009)
Environmental Factors Affecting Chromium-Manganese Oxidation-Reduction Reactions in Soil
D.O.P. Trebien (2011)
Arsenic and chromium speciation in an urban contaminated soil.
G. Landrot (2012)
Governing Constraints of Chromium(VI) Formation from Chromium(III)-Bearing Minerals in Soils and Sediments
Debra M. Hausladen (2019)
Abiotic reduction of Cr(VI) by humic acids derived from peat and lignite: kinetics and removal mechanism
S. T. Aldmour (2018)
Crystal chemistry of trace elements in natural and synthetic goethite
A. Manceau (2000)
Cr(III) is indirectly oxidized by the Mn(II)-oxidizing bacterium Bacillus sp. strain SG-1.
K. J. Murray (2007)
Oxidation of Chromium(III) to (VI) by Manganese Oxides
J. G. Kim (2002)
A Practical Method of Neutralizing Cr(VI) in Phillips Polymerization Catalysts
Kathy S. Collins (2014)
The oxidative transformation of sodium arsenite at the interface of alpha-MnO2 and water.
Xiu-Juan Li (2010)
Geogenic Cr oxidation on the surface of mafic minerals and the hydrogeological conditions influencing hexavalent chromium concentrations in groundwater.
N. Kazakis (2015)
Phytoextraction technologies for mercury- and chromium-contaminated soil: a review
E. Ranieri (2020)
Oxidation mechanisms and chemical bioavailability of chromium in agricultural soil - pH as the master variable
Inka Reijonen (2016)
Kinetics and mechanisms of Co(II) EDTA oxidation by pyrolusite
P. Jardine (1995)
Transport of Cr(VI) in Soils Contaminated with Chromite Ore Processing Residue (COPR)
C. Weng (2002)
Lead and arsenic speciation and bioaccessibility following sorption on oxide mineral surfaces
D. Beak (2005)
Microporous assembly of MnO2 nanosheets for malachite green degradation
S. Saha (2014)
Biological versus mineralogical chromium reduction: potential for reoxidation by manganese oxide.
Elizabeth C. Butler (2015)
One-pot synthesis of purple benzene-derived MnO2-carbon hybrids and synergistic enhancement for the removal of cationic dyes
H. Kim (2018)
Reduction of TcO4- by sediment-associated biogenic Fe(II)
J. Fredrickson (2004)
Abiotic reduction of Cr(VI) by humic acids: kinetics and removal mechanism
Suha Tawfiq Jamil Aldmour (2018)
Marine ferromanganese oxide: A potentially important sink of light chromium isotopes?
W. Wei (2018)
Effects of Co(II) ion exchange, Ni(II)- and V(V)-doping on the transformation behaviors of Cr(III) on hexagonal turbostratic birnessite-water interfaces.
Hui Yin (2019)
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