Solution-solid phase equilibria in the fullerene C-60-fullerene C-70-C6H5CH3 and fullerene C-60-fullerene C-70-o-C6H4(CH3)(2) systems at 25 and 80 degrees C, respectively

The solubility diagram of the C-60-C-70-toluene fullerene-containing ternar y system was obtained at 25 degreesC, The diagram involved the crystallizat ion of substitution solid solutions with the compositions (C-60)(z)(C-70)(1 -z). 2C(6)H(5)CH(3) and (C-60)(z)(C-70)(1-z).0.5C(6)H(5)CH(3) and contained one nonvariant point of the eutonic type corresponding to simultaneous sat uration of the liquid phase with both solid solutions. The diagram also con tained a break of continuity related to the crystallization of solid soluti ons; the immiscibility region corresponded to 0.28 < z < 0.81. The solubili ty diagram of the C-60-C-70-o-xylene fullerene-containing ternary system wa s obtained at 80 degreesC. The diagram involved crystallization of two subs titution solid solutions of the composition (C-60)(z)(C-70)(1-z) and contai ned one nonvariant point of the eutonic type corresponding to simultaneous saturation of the liquid phase with two solid solutions. The diagram also c ontained a break of continuity related to the crystallization of solid solu tions; the immiscibility region corresponded to 0.21 < z < 0.82.