Abstract
From the solubility data of oxygen, nitrogen, and carbon dioxide in aqueous solutions of methanol, ethanol, 1-propanol, and 2-propanol, a general correlation is obtained by plotting the excess quantities for the Ostwald coefficients averaged by volume fraction against the solution composition.
The relation between the excess quantities in aqueous solutions of an alcohol and the alcohol volume fraction in the mixed solvents is given by a curve regardless of the kind of solute gas. The relation is shown as a curve for each kind of alcohol in the solutions.
Qualitative similarity between the excess quantity and the ratio of the excess molar volume to the volume on ideal mixing for each aqueous alcohol solution is recognized and discussed.
