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- Title
Chemical Stability of Pb[(UO<sub>2</sub>)<sub>2</sub>O<sub>2</sub>(OH)<sub>2</sub>](H<sub>2</sub>O) and Pb<sub>2</sub>[(UO<sub>2</sub>)<sub>5</sub>O<sub>6</sub>(OH)<sub>2</sub>](H<sub>2</sub>O)<sub>2</sub> Compounds in Aqueous Solutions.
- Authors
Nipruk, O. V.; Klinshova, K. A.; Chernorukov, G. N.; Denisova, A. A.; Abrazheev, R. V.
- Abstract
The chemical stability of Pb[(UO2)2O2(OH)2](H2O) and Pb2[(UO2)5O6(OH)2](H2O)2 compounds in aqueous solutions was studied. The acid-base boundaries of the existence of these compounds in aqueous solutions were established, the hydrolysis products were identified, and their solubility was determined. Based on the data obtained, the equilibrium constants of dissolution reactions, the Gibbs functions of the formation and dissolution of Pb[(UO2)2O2(OH)2](H2O) and Pb2[(UO2)5O6(OH)2](H2O)2 were calculated, the solubility curves of the compounds under study, and the phase diagrams of U(VI) and Pb(II) in saturated aqueous solutions and in equilibrium solid phases were constructed.
- Subjects
CHEMICAL stability; AQUEOUS solutions; PHASE equilibrium; SOLID solutions; PHASE diagrams
- Publication
Russian Journal of General Chemistry, 2023, Vol 93, Issue 10, p2549
- ISSN
1070-3632
- Publication type
Article
- DOI
10.1134/S1070363223100109