Because the TM, RPA, and C-S terms are all additive in the free energy, we can systematically turn on or off these contributions. To show how these expressions manifest, we plot in Figure the predictions for phase separation using only the RPA and C-S terms, which is plotted with the blue curve and is a relatively small region of phase separation at The other feature that all of variations of this theory exhibit is the negative slope of the tie lines, with salt typically partitioning preferentially into the supernatant phase. We demonstrate this by plotting the partitioining coefficient λ = φ S,c /φ S,s versus φ S,c in Figure , where φ S,c is the salt concentration in the coacervate phase and φ S,s is the salt concentration in the supernatant phase. However, the strength of this partitioning varies, with the lowest λ as the concentration of the coacervate increases. This is conceptually consistent with prior work which suggests that preferential partitioning to the supernatant is driven primarily by the excluded volume of the components in the dense coacervate phase. However, there is also a low-φ S,c increase in λ that is a feature of the RPA theory, which is driven by fluctuation-induced attraction between the dense polyelectrolyte phase and the salt ions and is seen in RPA predictions in the absence of excluded volume.