96—THE ABSORPTION OF ACIDS BY WOOL FROM SOLUTIONS CONTAINING ORGANIC SOLVENTS: 1. The Absorption of Hydrochloric Acid from Aqueous Solutions of Methanol and of Dioxan

The absorption of hydrochloric acid by wool from aqueous solutions containing 24, 40 and 80% of methanol, and solutions with 45 and 82% of dioxan on a weight basis, was measured at 22°C. The titration curves were found to be similar to those obtained with aqueous solutions of hydrochloric acid, but were displaced with respect to the latter a distance which depends apparently on the change of the dissociation constant of the carboxyl group caused by the change of medium. With certain limitations, the shape of the titration curves can be explained either by the Gilbert and Rideal theory or by the application of the Donnan equilibrium theory.