Mutual solubility between hexane and tri-n-butyl phosphate solvates of lanthanide(III) and thorium(IV) nitrates at various temperatures

Russian Journal of Inorganic Chemistry - Tập 52 - Trang 1144-1146 - 2007
V. A. Keskinov1, V. V. Lishchuk1, A. K. Pyartman1
1St. Petersburg Technological Institute (Technical University), St. Petersburg, Russia

Tóm tắt

The phase diagrams of binary liquid systems consisting of hexane and a tri-n-butyl phosphate (TBP) solvate of an Ln(III) (Ln = Nd, Gd, Y, Yb, Lu) or Th(IV) nitrate at various temperatures are considered. The diagrams show a field of homogeneous solutions and a two-phase field in which phase I is hexane-rich and phase II is rich in [Ln(NO3)3(TBP)3] or [Th(NO3)4(TBP)2]. The miscibility gap in the binary systems narrows with increasing temperature.

Tài liệu tham khảo

V. A. Keskinov, A. V. Kudrova, and A. K. Pyartman, Zh. Neorg. Khim. 50(5), 895 (2005) [Russ. J. Inorg. Chem. 50 (5), 819 (2005)]. A. K. Pyartman, V. A. Keskinov, N. E. Mishina, and A. V. Kudrova, Radiokhimiya 47(5), 443 (2005). A. K. Pyartman, A. A. Kopyrin, E. A. Puzikov, and K. B. Bogatov, Radiokhimiya 37(1), 52 (1995). Extraction of Inorganic Compounds, Ed. by A. V. Nikolaeva (Nauka, Novosibirsk, 1970) [in Russian]. R. Traybal, Liquid Extraction (McGraw-Hill, N. Y., 1963; Khimiya, Moscow, 1966). A. V. Nikolaev and I. I. Yakovlev, Clathrate Formation and Physicochemical Analysis of Extraction Systems (Nauka, Novosibirsk, 1975) [in Russian]. R. Pžibil, Analytical Applications of EDTA and Related Compounds (Pergamon, Oxford (U.K.), 1972; Mir, Moscow, 1975). Z. I. Nikolotova and N. A. Kartashova, Extraction by Neutral Organic Compounds (Atomizdat, Moscow, 1976) [in Russian]. A. K. Pyartman, V. A. Keskinov, V. V. Lishchuk, and I. A. Spiridonova, Radiokhimiya 48(3), 246 (2006).