Excess molar volumes of binary mixtures (an ionic liquid+water): A review

An introduction to zwitterionic salts

“…2a). The excess molar volumes found for the ZWSs in dilute aqueous solution have significantly higher absolute values comparing to methylimidazolium halide ionic liquids 18 and support the hypothesis of Ramjugernath and co-workers 19 that the incorporation of polar and hydrophilic groups into organic cations would result in larger negative excess molar volumes. To further explore the interactions of water with the ZWSs, vapour-liquid equilibria (VLE) were determined in order to assess water activity.…”

Influence of the alkyl group on thermophysical properties of carboxylic acids in 1-butyl-3-methylimidazolium thiocyanate ionic liquid at various temperatures

“…The open literature shows that there are no data currently available for the binary systems studied. The present work is a continuation of our systematic studies on thermodynamic and thermophysical properties of binary or ternary mixtures containing ILs [19][20][21][22][23][24][25][26][27][28][29][30]. The structure of the studied ionic liquid is given in figure 1.…”

Density, viscosity and excess properties in the trihexyltetradecylphosphonium chloride ionic liquid/methanol cosolvent system

“…With regard to physicochemical properties of ILs and (IL + cosolvent) binary mixtures a common thread runs through many recent reports. From measurements of density [34][35][36][37][38][39][40][41][42], viscosity [6,40,41,43], conductivity [37,41,44,45], sound velocity [36], refractive index and enthalpy [46,47], excess properties are often computed as a means by which the nature of molecular interactions in mixtures can be interpreted. For example, Anouti and co-workers used volumetric, conductivity, and transport properties to characterize the (pyrrolidinium nitrate + propylene carbonate) binary mixture and they reported several thermodynamic properties for these mixtures [41].…”