Volume-based thermodynamics of ionic liquids and molten salts: Surface tension and the Eötvös equation
Embargo Lift Date
MetadataShow full item record
The surface thermodynamics of ionic fluids (both ionic liquids and molten salts) are calculated from surface tension data by application of a modified Eötvös Equation, and the results compared with the corresponding values for neutral organic liquids. As may be anticipated and here reported quantitatively, the coulombic interactions within the ionic fluids lead to smaller surface entropies and larger surface enthalpies because of tighter binding among the charged ions. For ionic liquids, an increase in formula volume leads to their surface properties tending towards those of neutral organic liquids, corresponding to a decrease in the strength of the coulombic interactions. Unexpectedly large surface entropies for molten GaCl3, BiBr3, BiCl3 and UF6 suggest that these species may be behaving as freely-spinning pseudo-spherical molecules.
Showing items related by title, author, creator and subject.
Sedev, Rossen (2011)Ionic liquids combine the properties of molten salts (they are liquids composed predominantly of ions) and organic liquids (a variety of chemical bonds and interactions are relevant). Their unique properties have attracted ...
Glasser, Leslie; Jenkins, H. (2016)The application of thermodynamics is simple, even if the theory may appear intimidating. We describe tools, developed over recent years, which make it easy to estimate often elusive thermodynamic parameter values, generally ...
Ambient Isobaric Heat Capacities, Cp,m, for Ionic Solids and Liquids: An Application of Volume-Based Thermodynamics (VBT)Glasser, Leslie; Jenkins, H.D. (2011)Thermodynamic properties, such as standard entropy, among others, have been shown to correlate well with formula volume, Vm, thus permitting prediction of these properties on the basis of chemical formula and density ...