Colloidal mixtures (oppositely charged polyelectrolytes, polyelectrolytes/surfactants or protein) can phase separate into two liquid phases (coacervate) both containing colloids and solvent (in different amounts) or in a solid phase with excess solution.

In addition to the fact that the chemical potential of the colloid in the solid phase should be a constant while in the liquid phase it is concentration dependent, are there other important differences from a thermodynamic point of view?

Thanks in advance for your help.