/pdf/ionic-liquid-properties-46t0t5cvwi.pdf

Ionic Liquid Properties

In this work, the Angell analysis of Walden plots of the conductivity of ionic liquids and other electrolytes against viscosity is used to examine simple molten salts at high temperatures, a test t...

On the Use of the Angell-Walden Equation To Determine the "Ionicity" of Molten Salts and Ionic Liquids.

Various methods that have been proposed in the literature for the estimation of the intrinsic volumes of electrolytes in aqueous solutions are briefly discussed. Most of these depend on the radii of the constituent ions. A method that is independent of the radii but requires a long extrapolation from the temperatures involved in salt melts is also mentioned. A new method is developed here, independent of ionic radii, which employs the partial molar volumes of salts in their concentrated solutions (and is, therefore, limited to highly soluble salts). These are extrapolated to a virtual concentration at which all the water present is as closely packed as possible, hence no longer capable of being electrostricted. The resulting intrinsic volumes of salts are reasonable when compared to other estimates of these quantities.

On the Intrinsic Volumes of Ions in Aqueous Solutions

It is well known that gases are soluble in molten salts at high temperatures. Solubilities are usually relatively high for the reactive gases and become less with the inert and noble gases.

Solubilities of Reactive Gases in Molten Salts

Molten salts safety and hazards: An annotated bibliography

The density (2.088 g ce−1) at 131.8 °C and viscosity (0.35 P at 131.8 °C) and their temperature dependence, of molten lithium chlorate, have been determined. Similar results have been obtained for lithium chlorate melts containing small quantities of water. The surface tension and its temperature dependence have been determined for lithium chlorate and for several lithium chlorate – water and lithium chlorate – lithium nitrate mixtures. From these measurements the surface heat has been calculated.The results for pure lithium chlorate indicate that the melt is complex, this complexity probably caused by association of some kind. This is especially evident just above the melting point, since there the temperature change in properties is greatest.Addition of water to the lithium chlorate melt causes the melt properties, especially the viscosity, to alter considerably. These changes are in part caused by a breakdown of the structural entities in the melt.

Studies on the thermodynamics and conductances of molten salts and their mixtures: part iii. densities, molar volumes, viscosities, and surface tensions of molten lithium chlorate, with small additions of water, and other substances

D. F. Williams

Papers

Studies on the thermodynamics and conductances of molten salts and their mixtures: part iii. densities, molar volumes, viscosities, and surface tensions of molten lithium chlorate, with small additions of water, and other substances