No abstract

Experimental data are reported for the adsorption of four carboxylic acids onto a macroreticular resin (Amberlite XAD-2) from dilute aqueous solutions. Acetic, propionic, n-butyric, and n-hexanoic acids were studied at 278, 298, and 323 K. The data, which cover a concentration range from 10~2 to KT4 M, were fitted with a Chebyshev rational approximation polynomial. The data for the acids that were completely miscible in water were successfully correlated by using a modified form of the adsorption potential theory.