Document Type
Annual Report
Publication Date
2008
First page number:
34
Last page number:
35
Abstract
Observations related to the oxidation of iodide to iodine (I2) or hypoiodic acid (HIO) by MnO2 were continued. The formation of triiodide presumable involves the adsorption of iodide onto the MnO2 surface (perhaps displacing a surface hydroxyl group). The iodide should be subsequently oxidized and released back into solution as IOH or I2, which rapidly forms I3 -. The kinetic data has been modeled as a first order process. First order rate constants have been obtained for the formation of iodine in the presence of MnO2. The increase in iodide oxidation rates with MnO2 concentration is evident in the data. The reaction rate increases with iodide concentration although the dependence is not first order (an order of 1.4 appear to fit the data). The oxidation rate also increases with temperature and has a apparent activation energy of 16.2 kJ/mol.
Keywords
Iodine — Isotopes; Manganese oxides; Organic compounds; Peat mosses; Radioactive wastes; Reactor fuel reprocessing; Sequestration (Chemistry); Sorbents; Transmutation (Chemistry)
Controlled Subject
Iodine--Isotopes; Radioactive wastes; Transmutation (Chemistry)
Disciplines
Analytical Chemistry | Chemistry | Oil, Gas, and Energy | Physical Chemistry
File Format
File Size
91 KB
Language
English
Rights
COPYRIGHT UNDETERMINED. For more information about this rights statement, please visit http://rightsstatements.org/vocab/UND/1.0/
Repository Citation
Steinberg, S. M.,
Cerefice, G.,
Emerson, D. W.
(2008).
Immobilization of Fission Iodine by Reaction with a Fullerene Containing Carbon Compound and Insoluble Natural Matrix.
34-35.
Available at:
https://digitalscholarship.unlv.edu/hrc_trp_separations/44
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