The solubility of ethane in N-methylpyrrolidinone (NMP) has been measured at -10, 25, 40, 50, 70, 75, 100, and 120 degrees C at pressures up to 7.1 MPa. The solubility data obtained are compared with those of ethane in other physical solvents. The results were correlated with the Peng-Robinson (1976) equation of state and the interaction parameters were obtained. Henry’s constants were also determined.