Mutual Diffusion Coefficients of Ethyl Acetate–Water Mixtures atT= (298.15–368.15 K) Measured by the Taylor Dispersion Method

Abstract

The first measured data set on the mutual diffusion coefficients of ethyl acetate–water systems over the water-rich region was reported at temperatures from 298.15 to 368.15 K. An experimental instrument has been developed and designed based on the Taylor dispersion technique to measure the diffusion coefficient in liquid mixtures. The method offers the advantages of simplicity and speed for measuring the diffusion coefficient in binary liquid systems at high-temperature conditions. The temperature and composition dependence of the binary diffusion coefficients were discussed. The mutual diffusion coefficient values for ethyl acetate–water systems are found in the range of ∼0.77–3.3 × 10–5 cm2/s with an associated average deviation range of 0.05–5%, depending on the temperature and composition of the system.