Ternary Phase Diagram n-Docosane: n-Tricosane: n-Tetracosane Molecular Alloys at 293 K

The ternary phase diagram of the mixtures n-C22H46: n-C23H48: n-C24H50 has been established at 293 K by X-ray diffraction experiments on forty one samples. This study indicates the existence of limited terminal solid solutions in the neighbourhood of three pure n-alkanes and three domains of intermediate phases, identical to those observed in the binary systems and denoted '1, o1, '2: on the basis of powder X-ray diffraction photographs, the patterns of the phases '1 and '2 are indistinguishable and these two intermediate solid solutions on both sides of the middle intermediate phase o1 are isostructural as in the binary systems.