Activity coefficients at infinite dilution of organic solutes in N-formylmorpholine and N-methylpyrrolidone from gas-liquid chromatography

► γ13∞ values reported for 25 organic solutes in the solvents NMP and NFM. ► Measurements undertaken using the glc technique at T = (333.2, 348.2, and 363.2) K. ► Measurements at elevated temperature possible by pre-saturation of carrier gas. ► Comparison of NMP and NFM performance with a number of solvents.