Host: The Society of Chemical Engineers, Japan
For liquid C1 to C18 n-alkanes, C4 to C10 i-alkanes, C3 to C13 n-aldehyde and C1 to C10 n-alcohols, transport properties, viscosity and thermal conductivity, were correlated in the corresponding states with the use of potentials between the functional groups. The transport properties were reduced with the mass of molecule, characteristic length and energy. The characteristic length and energy were expressed with the potential parameters and distance correction parameter, which were determined such that the molar volume and the vapor pressure were correlated in the corresponding states. The transport properties were expressed by the integral of the autocorrelation function of the corresponding dynamic quantities and were expanded around that of the reference system, the pair potential of which consisted of hard sphere and attractive potentials, with the differences in the vibration and revolution terms in Liouville operator and Hamiltonian. The viscosities and the thermal conductivities were correlated well for the alkanes and the aldehydes and were correlated satisfactorily for the alcohols. The viscosity for liquid n-alkane mixtures was derived by the expansion of the integral of the autocorrelation function around that of the reference with the difference in molecular size. The mixing viscosity of the liquid n-alkanes calculated agreed with the observed ones satisfactorily.
