Variation of stability constants of thorium and uranium oxalate complexes with ionic strength

Date

1994

Authors

Erten, H. N.
Mohammed, A. K.
Choppin, G. R.

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Abstract

The extraction of Th(IV) and UO!+ by a solution of TTA and HDEHP, respectively in toluene has been used to obtain stability constants of their oxalate complexes at 298 Κ in 1, 3, 5, 7 and 9 Μ ionic strength (NaC104) solutions. The complexes formed were the MOx, MHOx, MOx2 and M(HOx)2 (M = Th, U02) species. The values were analyzed by the Specific Interaction Theory and agreed to / < 3 Μ but required an additional term for fitting at / > 3 M.

Source Title

Radiochimica Acta

Publisher

De Gruyter Oldenbourg

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Keywords

Thorium, Uranyl, Oxalate, Complexation, Solvent extraction

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Citation

Published Version (Please cite this version)

Language

English

Type

Article