Polarographic electroreduction of some complexes of uranium with macrocyclic polyethers
Description
The polarographic behavior of uranium(VI) in aqueous 0.1 N nitric acid medium, in the presence of some polyoxa macrocyclic ligands (15-crown-5, benzo-15-crown-5, 18-crown-6, dicyclohexyl-18-crown-6), at 250C, was investigated. Both in the absence and in the presence of the polyoxa macrocyclic ligands, the reduction of hexavalent uranium in aqueous medium takes place in two steps, each of which involves the transfer of an electron. Under diffusion-controlled conditions, the two steps of the reduction in acid medium proceed reversibly. The results of the polarographic measurements enabled an estimate to be made of the ratio of the stability constants of the complex ions of U(III) and of U(IV) with macrocyclic polyethers. 20 references, 3 figures, 4 tables
Additional details
Publishing Information
- Journal Title
- Anal. Lett.
- Journal Volume
- 18
- Journal Issue
- A18
- Series
- Anal. Lett.
- Journal Page Range
- 2305-2320
- ISSN
- 0003-2719
- CODEN
- ANALB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 17049651
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- AQUEOUS SOLUTIONS; DIFFUSION; ELECTRON TRANSFER; EXPERIMENTAL DATA; LIGANDS; NITRIC ACID; POLYETHYLENE GLYCOLS; REDUCTION; STABILITY; URANIUM COMPLEXES; VOLTAMETRY
- Descriptors DEC
- ACTINIDE COMPLEXES; CHEMICAL REACTIONS; COMPLEXES; DATA; DISPERSIONS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INFORMATION; INORGANIC ACIDS; MIXTURES; NITROGEN COMPOUNDS; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC POLYMERS; OXYGEN COMPOUNDS; POLYMERS; SOLUTIONS