Abstract Malanowski S., Bittrich H.-J., Reinhardt K., Lempe D. and J.-U. Wüstling, 1993. Liquid-liquid equilibria in binary mixtures of N-methyl-α-pyrrolidone and saturated hydrocarbons. Liquid-liquid equilibria of N-methyl-α-pyrrolidone with pentane, hexane, heptane, octane and nonane were measured by the synthetic method. The data were correlated by the NRTL-equation. From the parameters of this equation the excess Gibbs energies and the excess enthalpies were calculated.