Published 1990
| Version v1
Book
Reduction of Np(VI) by hydroxy organic compounds
Description
Humic substances can complex and reduce actinide species. To clarify the redox chemistry, we have studied the reduction of Np(VI) by analogs of the humics. Spectrophotometry and solvent extraction were used to determine the kinetic expression for the reduction by three isomeric hydroxybenzoic acids (HBA). The reduction of NpO2+2 by the HBA was inhibited by anionic micelles but unaffected by cationic micelles. The organic products of the analogous reduction of Ce(IV) by o-HBA were identified by GC-MS measurements. All the results were consistent with a mechanism in which the redox reaction occurs by interaction of NpO2+2 with the phenolic group, resulting in the formation of phenoxy radicals
Additional details
Publishing Information
- Publisher
- American Chemical Society.
- Imprint Place
- Washington, DC (USA)
- Imprint Title
- American Chemical Society National Meeting, Division of Nuclear Chemistry and Technology
- Imprint Pagination
- 56 p.
- Journal Page Range
- p. 17.
Conference
- Title
- 200. American Chemical Society national meeting.
- Dates
- 26-31 Aug 1990.
- Place
- Washington, DC (USA).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22015069
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- DATA PROCESSING; HUMIC ACIDS; KINETICS; MEASURING METHODS; NEPTUNIUM; REDUCTION; SOLVENT EXTRACTION; SPECTROPHOTOMETRY
- Descriptors DEC
- ACTINIDES; CHEMICAL REACTIONS; ELEMENTS; METALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; SEPARATION PROCESSES; TRANSURANIUM ELEMENTS
Optional Information
- Notes
- Paper NUCL 55.
- Secondary number(s)
- CONF-900802--.