“…Consequently, André et al [35] proposed the estimation of a new set of parameters for the binary FeCl3-H2O system using all available experimental activity data given in [27,36,37]. Following Tanaka et al [32] and [14][15][16][17]19,21], a four-parameter approach (β 0 , β 1 , β 2 , and C φ ) is applied for this binary, without considering any complex species in solution. The resulting parameterization gives a good agreement with water activity values up to 16 mol.kg -1 , widely over the solubility of FeCl3, 6H2O(s) (m(sat) (FeCl3, 6H2O(s)) = 6.2 mol.kg -1 ).…”