Separation studies of selected actinide ions with 4-benzoyl-5-methyl-2-phenyl-pyrazol-3-thione and tri-n-octylphosphine oxide
Description
The first measurements of distribution coefficients (Kd) for Bk(III), Es(III), and Fm(III) between aqueous perchlorate solutions and solutions of 4-benzoyl-5-methyl-2-phenyl-pyrazol-3-thione (BMPPT) and the synergist tri-n-octyl-phosphine oxide (TOPO) in toluene are reported. 250Bk, 249Cf, 254Es, and 253Fm were used in these studies. The Kd for 241Am was also measured and is in agreement with previously published results. These results show that the Kd's decrease somewhat with increasing atomic number for the actinides with a dip at Cf. In general, the Kd's for these actinides are about a factor of 5 to 10 greater than the Kd's for the homologous lanthanides. The larger Kd's for the actinides are consistent with greater covalent bonding between the actinide metal ion and the sulfur bonding site in the ligand
Additional details
Publishing Information
- Publisher
- American Chemical Society.
- Imprint Place
- Washington, DC (United States)
- Imprint Title
- American Chemical Society. Division of Nuclear Chemistry and Technology
- Imprint Pagination
- 30 p.
- Journal Page Range
- p. 73, Paper NUCL.
Conference
- Title
- 4. chemical congress of North America.
- Dates
- 25-30 Aug 1991.
- Place
- New York, NY (United States).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 24025773
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- AMERICIUM 241; AQUEOUS SOLUTIONS; BERKELIUM; BERKELIUM 250; CALIFORNIUM; CALIFORNIUM 249; EINSTEINIUM; EINSTEINIUM 254; EXPERIMENTAL DATA; FERMIUM; FERMIUM 253; LIGANDS; ORGANIC SOLVENTS; PHOSPHINE OXIDES; SOLVENT EXTRACTION; TOPO
- Descriptors DEC
- ACTINIDE NUCLEI; ACTINIDES; ALPHA DECAY RADIOISOTOPES; AMERICIUM ISOTOPES; BERKELIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CALIFORNIUM ISOTOPES; DATA; DAYS LIVING RADIOISOTOPES; DISPERSIONS; EINSTEINIUM ISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; EVEN-ODD NUCLEI; FERMIUM ISOTOPES; HEAVY NUCLEI; HOMOGENEOUS MIXTURES; HOURS LIVING RADIOISOTOPES; INFORMATION; INTERNAL CONVERSION RADIOISOTO; ISOTOPES; METALS; MIXTURES; NONAQUEOUS SOLVENTS; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; RADIOISOTOPES; SEPARATION PROCESSES; SOLUTIONS; SOLVENTS; SPONTANEOUS FISSION RADIOISOTO; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS; YEARS LIVING RADIOISOTOPES
Optional Information
- Secondary number(s)
- CONF-9108101--.