Solid–liquid equilibria of biphenyl binary systems

Solid–liquid equilibrium temperatures, obtained by means of a differential scanning calorimetry (DSC) technique, are reported for biphenyl+n-C21, or +n-C31, or +n-C41 systems. Biphenyl+alkane, or +heterocyclic compound (diphenyl ether, dibenzofuran, indole, diphenylamine, 1-octadecanol or octadecanoic acid) have been investigated using DISQUAC and the ideal solubility model. This model provides good results for alkane solutions whose components which largely differ in size. Interactional effects are relevant in solutions with heptane, octadecane or mixtures involving dibenzofuran, indole, 1-octadecanol or octadecanoic acid.