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Raman spectroscopic and chromatographic study of the uranium isotope effect in uranyl acetate complex formation

Journal Article · · J. Phys. Chem.; (United States)
DOI:https://doi.org/10.1021/j100395a036· OSTI ID:5583134
; ;
Raman spectra of aqueous solutions of uranyl acetate complexes were measured. The downward shift of the frequency for the totally symmetrical stretching vibration of the O = U = O bond was brought about by stepwise formation of uranyl acetate complexes. In order to predict the direction of the fractionation of uranium isotopes in complexes, the reduced partition function ratio for each uranyl acetate species was calculated by use of each assigned O = U = O stretching frequency. It was found that the lighter isotope /sup 235/U is accumulated more preferentially in uranyl acetate species than in the hydrated uranyl ion. This trend is consistent with that obtained by cation-exchange chromatography of uranyl acetate solutions.
Research Organization:
Tokyo Inst. of Tech., Japan
OSTI ID:
5583134
Journal Information:
J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 86:6; ISSN JPCHA
Country of Publication:
United States
Language:
English

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Related Subjects

050500 -- Nuclear Fuels-- Uranium Enrichment
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
ACETATES
ACTINIDE COMPLEXES
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
AQUEOUS SOLUTIONS
CARBOXYLIC ACID SALTS
CATIONS
CHARGED PARTICLES
CHROMATOGRAPHY
COMPLEXES
DATA
DISPERSIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HEAVY NUCLEI
INFORMATION
ION EXCHANGE
ION EXCHANGE CHROMATOGRAPHY
IONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPE EFFECTS
ISOTOPE RATIO
ISOTOPES
MINUTES LIVING RADIOISOTOPES
MIXTURES
NUCLEI
NUMERICAL DATA
RADIOISOTOPES
RAMAN SPECTRA
SEPARATION PROCESSES
SOLUTIONS
SPECTRA
URANIUM 235
URANIUM 238
URANIUM COMPLEXES
URANIUM ISOTOPES
URANYL COMPLEXES
YEARS LIVING RADIOISOTOPES