THERMODYNAMICS OF DILUTED TERNARY SODIUM AMALGAMS

Thermodynamic properties of sodium in liquid binary amalgams Tl-Hg, In -Hg, Cd-Hg, Bi-Hg and Cs-Hg have been studied by the emf method. The a ctivity coefficients of sodium for infinitely diluted solutions at 597 K were calculated using experimental data and the lattice models of B lander, and Alcock and Richardson. The existence of the Henry region c haracteristic of uniformly diluted solution was estimated. A method fo r the prediction of gamma(Na)(infinity) values for other ternary amalg ams having similar properties has been proposed.