“…The main objective of this study is the development of a high accuracy thermodynamic model for solution behavior, and highly soluble sea-type chloride solids, and M(III)Cl 3 (s) (M= Al, Fe, Cr) minerals solubility in the following mixed systems: 1) KCl-AlCl 3 [5,17,30], we fully complete our model for the 8 th component system Na-K-Mg-Ca-Al(III)-Cr(III)-Fe(III)-Cl-H 2 O. Comprehensive thermodynamic models that accurately predict aluminum, chromium and iron aqueous chemistry and M(III) mineral solubilities as a function of pH, solution composition and concentration are critical for understanding many important geochemical and environmental processes involving these metals (e.g., mineral dissolution/alteration, rock formation, changes in rock permeability and fluid flow, soil formation, mass transport, toxic M(III) remediation).…”