There are appreciable changes in the phase volumes and the
influence of composition and temperature on these changes is very
pronounced. Benzene was used as the inert diluent and pentyl
alcohol was the active component of the mixed solvent. In all the
above mentioned systems, except systems A and B, the third phase
(heavy organic phase) was observed at room temperature. The addition
of alcohols to some systems suppresses the formation of the
third phase
