Volumes of mixing and deviations in isentropic compressibility for binary mixtures of di-n-butylamine with iso-propanol, iso-butanol and iso-pentanol were measured at 303.15 K. The excess volumes and deviations in isentropic compressibility are negative over the entire range of mole fractions in all the systems. The results point out that there is a strong H-bond interaction between unlike molecules
