Published December 1990 | Version v1
Journal article Metadata-only

Temperature and ionic strength influence on U(VI/V) and U(IV/III) redox potentials in aqueous acidic and carbonate solutions

Creators

  • 1. CEA, 92 - Fontenay-aux-Roses (France). Commission d'Etablissement des Methodes d'Analyse (CETAMA)

Description

The objective of the present work is to measure the redox potential of the couple UO2(CO3)34-/UO2(CO3)35- to test specific interaction theory with the highly charged anionic limiting complexes of hexavalent and pentavalent uranium, that exist in concentrated carbonate solutions. The poor precision of published results on the entropy of actinide ions induces uncertainties on the redox potentials at high temperature thus the variation of the redox potentials of the couples UO22+/UO2+, U4+/U3+ and UO2(CO3)34-/UO2(CO3)35- versus temperature was studied. (author) 15 refs.; 4 tabs

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
143
Journal Issue
2
Series
J. Radioanal. Nucl. Chem. ;Articles.
Journal Page Range
403-414
ISSN
0236-5731
CODEN
JRNCD

Conference

Title
International conference on Actinides - 89.
Dates
24-29 Sep 1989.
Place
Tashkent (USSR).

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
22058890
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
AQUEOUS SOLUTIONS; CARBONATES; COMPARATIVE EVALUATIONS; ENTROPY; EXPERIMENTAL DATA; NITRIC ACID; REDOX POTENTIAL; SPECTROPHOTOMETRY; URANIUM; URANYL COMPLEXES; VALENCE; VOLTAMETRY
Descriptors DEC
ACTINIDE COMPLEXES; ACTINIDES; CARBON COMPOUNDS; COMPLEXES; DATA; DISPERSIONS; ELEMENTS; EVALUATION; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INFORMATION; INORGANIC ACIDS; INORGANIC COMPOUNDS; METALS; MIXTURES; NITROGEN COMPOUNDS; NUMERICAL DATA; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SOLUTIONS; THERMODYNAMIC PROPERTIES; URANIUM COMPLEXES