The Sorption of Acids by Wool from Mixtures of Acids

Abstract

The amounts of trichleroacetic acid and hydrochloric acid sorbed by wool from mixtures containing various amounts of the two acids in aqueous solution were measured. Tests were also carried out with solutions of triehloroacetie acid and monochloroacetic acid alone. The results show the same sort of relationship between the amounts of hydrochloric acid and trichloroacetic acid sorbed and the concentration of the corresponding anions in the solution in equilibrium with the wool as that found in the previous experiments with dichloroacetic acid and with monochloroacetic acid1, but the affinity of trichloroacetic acid for wool is much higher than the affinities of these two acids. The amount of acid sorbed can be calculated from the final concentrations of the two acids in the solution at equilibrium, as before 1, but a correction that depends on the chloride ion concentration has to be introduced.