Abstract
Enthalpies of solution in water have been determined calorimetrically at 293.15, 298.15, and 303.15K, at different final concentrations, for a number of alkoxyethanols, ROCH 2 CH 2 OH (R = Me, Et, Pr, i -Pr, Bu) and 1,2-dialkoxyethanes, ROCH 2 CH 2 OR′ (R,R′ = Me,Me; Me,Et; Et,Et; Me,Pr; Me,Bu; Pr,Pr). Heat capacities have been determined for the pure compounds at 298.15 K by use of a novel micro drop calorimeter. From the experimental results enthalpies of solution in water at infinite dilution, enthalpies of solvation at 298.15 K, and partial molar heat capacities in aqueous solution at 298.15 K have been derived. The thermodynamic results obtained are correlated with structural parameters and are compared with corresponding data recently derived for carboxylic acids, amines, alcohols, and N-substituted amides.
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