Gibbs energies of transfer of several alkali-metal chlorides from water to sucrose–water mixtures using streaming amalgam electrodes

Abstract

The Gibbs energies of transfer of lithium chloride, sodium chloride and potassium chloride from water to various sucrose–water mixtures at 298 K have been determined from emf measurements on the cell: Ag|AgCl|MCl (m₁, aq)|M(Hg)|MCl (m₂, aq–sucrose)|AgCl|Ag Measurements have been made with streaming amalgam electrodes in solutions up to 0.1 mole fraction sucrose (68 wt.%). The results agree well with earlier work at quite low sucrose mole fractions (up to 0.02) and are consistent with the view that sucrose in solution does not solvate either the cation or the chloride ion to any significant extent.