Figure : Chemical potential of TIP4P water in electrolyte solutions. Top: µ LiCl water (P ); middle : µ N aCl water (P ); bottom : µ CsCl water (P ) at different molalities. The chemical potential of pure water is shown as black line in each plot for comparison. Here, the chemical potential of water in electrolyte solutions µ CnAm water (P ) has been computed starting from 0.006 MPa, which is slightly higher than the vapor pressure of pure TIP4P water (0.0053 MPa) and vapor pressure of any electrolyte solution in this work. We do not focus on pressure below this value because the evolution of the vapor pressure of electrolyte solution in this range of pressure will be discussed later in the manuscript. The common trend is that the chemical potential of water in electrolyte solutions shows the same dependency in pressure as the chemical potentiel in pure water and this observation holds also for divalent-cation electrolytes (µ