Investigation of the solution properties of the transuranium elements. Progress report, July 1, 1980-June 30, 1982. [Nitriloacetate, iminodiacetate, ethylenediaminetetraacetate, diethylenetriaminepentaacetate]
This report summarizes the progress of our program for the period July 1, 1980 to June 30, 1982 in determining the fundamental solution properties of the transuranium elements. The use of LaF/sub 3/ as the precipitating matrix for the determination of Tb(III) by selective laser excitation has been demonstrated. This technique has been applied to the determination of Cm(III) in aqueous solutions with a detection limit of at least 1 x 10/sup -12/ mole %. The modification of the extraction characteristics of HDNNS by the addition of hydrophobic carboxylic acids has been investigated. Results indicate the inclusion of these compounds in the micelle formed by HDNNS will alter the distribution of trivalent metal ions. The thermodynamic parameters (..delta..G, ..delta..H, and ..delta..S) for the complexation of a series of aminopolycarboxylates with trivalent actinides have been measured. Comparison of ..delta..G values for the trivalent actinides with data for the trivalent lanthanides shows little difference; however, the measured ..delta..H and ..delta..S values for the two families is quite different. The data for the aminopolycarboxylate system have been interpreted as indicating the loss of one additional water molecule per carboxylate group from the actinide ions during complexation when compared with the lanthanide ions.
- Research Organization:
- Tennessee Technological Univ., Cookeville (USA). Dept. of Chemistry
- DOE Contract Number:
- AS05-79ER10489
- OSTI ID:
- 5260730
- Report Number(s):
- DOE/ER/10489-08; ON: DE82013983; TRN: 82-013606
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMERICIUM COMPLEXES
CHEMICAL PREPARATION
COMPARATIVE EVALUATIONS
ENTHALPY
ENTROPY
FREE ENERGY
BERKELIUM
CALIFORNIUM COMPLEXES
CURIUM
COPRECIPITATION
EMISSION SPECTRA
EINSTEINIUM
LANTHANUM FLUORIDES
RARE EARTH COMPLEXES
TERBIUM
AQUEOUS SOLUTIONS
EXCITATION
EXPERIMENTAL DATA
FLUORESCENCE
LASER RADIATION
RESEARCH PROGRAMS
ACTINIDE COMPLEXES
ACTINIDES
COMPLEXES
DATA
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY
ENERGY-LEVEL TRANSITIONS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
LANTHANUM COMPOUNDS
LUMINESCENCE
METALS
MIXTURES
NUMERICAL DATA
PHYSICAL PROPERTIES
PRECIPITATION
RADIATIONS
RARE EARTH COMPOUNDS
RARE EARTHS
SEPARATION PROCESSES
SOLUTIONS
SPECTRA
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM COMPLEXES
TRANSURANIUM ELEMENTS
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