Inversion of the Kirkwood-Buff theory of solutions: application to binary systems

Kirkwood-Buff (K-B) integrals play an important role in characterizing the properties and interactions of various liquid mixtures. However, there exists no method to calculate directly the K-B integrals from the easily available experimental data of ultrasonic velocity and density. An attempt has been made to evaluate the same using these initial parameters. A statistical mechanical theory advanced by Arakawa et al. has been used here, in combination with a semiempirical formula to compute K-B parameters in the whole concentration range for six binary systems at atmospheric pressure and at 298.15 K. (C) 2001 Elsevier Science BN. All rights reserved.