PARTIAL MOLAR VOLUMES AND DIFFUSION COEFFICIENTS FOR TERNARY SYSTEM WATER CHLOROFORM-ACETIC ACID AT 25 deg C FOR DIFFERENT CHOICES OF SOLVENT

The partial molar volumes and the diffusion coefficients, D ij, for the ternary system water-chloroform-acetic acid at 25 deg C are reported at five compositions using different choices of solvent. The analyzed compositions have a fixed ratio between water and chloroform molar factions and a decreasing amount of acetic acid, then approaching the binodal curve. The difficulty of interpreting the Did is stressed and the use of different choices of solvent for the diffusive transport is suggested to extract from the diffusion coefficients all the possible information.