SOLUBILITY AND COMPLEXATION IN UO2F2-H2O-ORGANIC-BASE SYSTEMS

Authors
MIKHALEV VA SUGLOBOV DN
Citation
Va. Mikhalev et Dn. Suglobov, SOLUBILITY AND COMPLEXATION IN UO2F2-H2O-ORGANIC-BASE SYSTEMS, Radiochemistry, 35(5), 1993, pp. 493-500
Citations number
9
Categorie Soggetti
Chemistry Analytical","Chemistry Inorganic & Nuclear
Journal title
Radiochemistry → ACNP
ISSN journal
10663622
Volume
35
Issue
5
Year of publication
1993
Pages
493 - 500
Database
ISI
SICI code
1066-3622(1993)35:5<493:SACIUS>2.0.ZU;2-D
Abstract
The solubility and phase equilibria in UO2F2-H2O-organic-base systems are studied. The organic bases used were ethanol (EtOH), isopropanol ( i-PrOH), acetonitrile (CH3CN), and dimethylsulfoxide (DMSO). Saturated aqueous-ethanol solutions contain only the dihydrate. However, a soli d of formula UO2F2-i-PrOH forms in addition to the dihydrate in the is opropanol system; of formula UO2F2.2H2O.CH3CN, in the CH3CN system. Th e equilibrium of saturated solutions and solid UO2F2.DMSO covers a bro ad range in the DMSO system. The solubility of UO2F2 in the aqueous-or ganic mixtures is correlated with the ability of the organic molecule to form a complex with UO2F2.