Phase diagrams of (R4N)2[Nd(NO3)5]-carbon tetrachloride-n-octanol (n-butanol, n-decanol, cyclohexanol) liquid ternary systems at various temperatures

Abstract

Phase diagrams are studied for (R4N)2[Nd(NO3)5]-CCl4n-octanol (n-butanol, n-decanol, cyclohexanol) ternary liquid systems, where R4N+ stands for trialkylbenzylammonium, at T = 298.15–333.15 K. The (R4N)2[Nd(NO3)5]-CCl4 binary system at all temperatures is a two-phase liquid. One phase (phase I) is almost neat carbon tetrachloride; the other (phase II) is enriched in (R4N)2[Nd(NO3)5]. The CCl4 solubility in phase II increases with rising temperature. The liquid ternary systems are characterized by homogeneous and two-phase liquid solution fields. One phase is enriched in (R4N)2[Nd(NO3)5] and n-octanol (n-butanol, n-decanol, cyclohexanol) and the other in CCl4. Miscibility fields in the ternary liquid systems narrow with rising temperature.