Volumetric Properties of Alkali Salt in Aqueous 1-Butyl-3-Methylimidazolium Tetrafluoroborate at Various Temperatures

Abstract

Volumetric characterstics of multiple electrolytic solutions in a wide range of solute concentrations and solutions temperatutre are of fundamental importance for the understanding of numerous physicochemical processes occurring in various brances of the chemical industry as well as in the natural envirnoment. In a view of importance of NaCl as primary salts in seawater and most of other natural water, accurate thermophysical data is crucial for understanding industrial and natural processes [1]. Ionic interaction plays an important role in chemical reactions in solutions [2]. In fact, the effect of the addition of salts in aquous solutions of ILs is very complex, primarily because a large number of different types of intermolecular interactions come into play between the ion and water, ion and IL, and IL and water. From a thermodynamic perspective, the solvation of ionic species in the ILs is much more favored than in conventional solvents. This is one of the key advantages of using ILs in separations involving ionic species.