VAPOR-PRESSURES OF BUTAN-L-OL WITH N-HEXADECANE BETWEEN 293.18 AND 323.18 K - DESCRIPTION OF BUTAN-L-OL PLUS N-ALKANE SYSTEMS BY ERAS MODEL

Vapour pressures of butan-1-ol with n-hexadecane between 293.18 and 323-18K were measured at about 5 K intervals by a static method. Activity coefficients were obtained by the Barker method, and molar excess Gibbs energies were fitted to a Pade 3/1. Experimental molar excess Gibbs energies, at 298.15 and 318.15 K, and molar excess volumes, at 298.15 K, of butan-1-ol + n-hexane, + n-octane, and + n-hexadecane are compared with predictions of an extended real associated solution (ERAS) model. The model reproduces acceptably the experimental curves of V(E) and gives a good description of the experimental results of G(E) at 298.15 K.