Collect. Czech. Chem. Commun. 1981, 46, 3157-3165

Solid-gas equilibrium in the binary system lithium iodide-water

Jiřina Hejtmánková, Čestmír Černý and Luděk Jettmar

Department of Physical Chemistry, Prague Institute of Chemical Technology, 166 28 Prague 6


An investigation has been made of the equilibria of hydration in the system solid lithium iodide-water vapour in the temperature interval covering the range of existence of the solid hydrates, using a dynamic method in a flow apparatus. From measured equilibrium pressures, the changes of the thermodynamic functions accompanying these reactions were determined and the values of the heats of formation, of the Gibbs energies of formation and of the absolute entropies of the solid mono-, di- and trihydrate of lithium iodide at 298.15 K were calculated.