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- Title
Phase Separation in the Ternary Liquid System [Th(NO<sub>3</sub>)<sub>4</sub>(TBP)<sub>2</sub>]— [UO<sub>2</sub>(NO<sub>3</sub>)<sub>2</sub>(TBP)<sub>2</sub>]—Decane at Various Temperatures.
- Authors
Keskinov, V. A.; Mishina, N. E.; Pyartman, A. K.
- Abstract
The phase diagram of the ternary liquid system [Th(NO3)4(TBP)2]— [UO2(NO3)2(TBP)2]—decane was studied within the 298.15–333.15 K range. The system has the area of homogeneous solutions and area of binary liquid subsystems (with separation); one phase (I) is enriched in [Th(NO3)4(TBP)2] and [UO2(NO3)2·(TBP)2] and the other phase (II), in decane. The temperature does not substantially affect the area of phase separation. In two-phase systems, [UO2(NO3)2(TBP)2] is mainly concentrated in phase I, in spite of the fact that the binary system [UO2(NO3)2(TBP)2]—decane is single-phase in the entire temperature range studied. Concentration of [UO2(NO3)2(TBP)2] in phase I results in redistribution of [Th(NO3)4(TBP)2] into phase II. The points of the critical composition of the ternary system are compositions with similar content of the solvates [Th(NO3)4(TBP)2] and [UO2(NO3)2(TBP)2] at all the temperatures studied.
- Subjects
LIQUID-liquid equilibrium; PHASE equilibrium; EFFECT of temperature on chemical kinetics; SEPARATION (Technology); SOLUTION (Chemistry); TEMPERATURE; ORGANIC compounds; CHEMICAL systems; RADIOCHEMISTRY
- Publication
Radiochemistry, 2005, Vol 47, Issue 6, p567
- ISSN
1066-3622
- Publication type
Article
- DOI
10.1007/s11137-006-0009-1