Phase Diagrams for Binary Liquid System Tetradecane-Neodymium(III) Nitrate Tri-n-Butyl Phosphate Solvate and Ternary Liquid Systems Tetradecane-n-Octanol (n-Butanol, o-Xylene, Toluene)-Neodymium(III) Nitrate Tri-n-Butyl Phosphate Solvate at Various T

摘要

Phase diagrams at temperatures from 298.15 to 344.85 K were studied for the binary liquid system tetradecane-neodymium(III) nitrate tri-n-butyl phosphate solvate and ternary liquid, systems tetradecane-n-octanol (n-butanol, o-xylene, toluene)-neodymium(III) nitrate tri-n-butyl phosphatctTBP) solvate. The ternary phase diagrams consist of a homogeneous solution field and a liquid-liquid phase separation field: phase I is rich in tetradecane, and phase II is rich in [Nd(NO_3)_3(TBP)_3]. The miscibility gaps in the binary system and the ternary systems narrow with an increase in temperature. The compositions at the critical solution points of the ternary system at various temperatures were determined.