Ability of the Nitta-Chao model for the prediction of pressure and temperature dependence of the volumetric properties of n-alkane plus 1-alkanol systems

Volumetric behaviour of n-alkane + 1-alkanol mixtures in a wide range of temperatures and pressures was examined on the basis of the Nitta-Chao model. Literature data of experimental densities in a temperature range from 298.15 to 373.15 K and pressures up to 40 MPa were selected in order to test the model predictions for the following quantities: excess molar volumes v(E) and isothermal compressibilities kappa(T). (partial derivative v(E)/partial derivative T)(p) and (partial derivative h(E)/partial derivative p)(T) obtained from density data were compared with those predicted with the Nitta-Chao model. (C) 1997 Elsevier Science B.V.