Temperature dependency of adsorption of phenol (PL), p-chloroaniline (PCA), p-aminobenzoic acid (PAB) and p-chlorobenzenesulfamide (PCBS) onto the adsorption polymer Wofatit EP63 at 8, 18 or 20 and 28 degrees C has been measured and isosteric adsorption enthalpies estimated. Adsorption heat is largest at lower loading and reaches at a > 1...1.5 mmole/g values of 15 (PCBS) to 35 (PCA) kJ/mole.