VARIATION OF STABILITY-CONSTANTS OF THORIUM AND URANIUM OXALATE COMPLEXES WITH IONIC-STRENGTH

Authors
ERTEN HN MOHAMMED AK CHOPPIN GR
Citation
Hn. Erten et al., VARIATION OF STABILITY-CONSTANTS OF THORIUM AND URANIUM OXALATE COMPLEXES WITH IONIC-STRENGTH, Radiochimica Acta, 66-7, 1994, pp. 123-128
Citations number
16
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
Radiochimica Acta → ACNP
ISSN journal
00338230
Volume
66-7
Year of publication
1994
Pages
123 - 128
Database
ISI
SICI code
0033-8230(1994)66-7:<123:VOSOTA>2.0.ZU;2-A
Abstract
The extraction of Th(IV) and UO22+ by a solution of TTA and HDEHP, res pectively in toluene has been used to obtain stability constants of th eir oxalate complexes at 298 K in 1, 3, 5, 7 and 9M ionic strength (Na ClO4) solutions. The complexes formed were the MOx, MHOx, MOx(2) and M (HOx)(2) (M = Th, UO2) species. The values were analyzed by the Specif ic Interaction Theory and agreed to I less than or equal to 3 M but re quired an additional term for fitting at I > 3 M.