Transport of mass in ternary liquid‐liquid systems. Part I. Diffusion studies

TLDR: The diffusional behavior of the ternary partially miscible liquid system acetonitrile-benzene-n-heptane is investigated at 25°C using the diaphragm cell technique as mentioned in this paper.

Abstract: The diffusional behavior of the ternary partially miscible liquid system acetonitrile-benzene-n-heptane is investigated at 25°C using the diaphragm cell technique. The mutual diffusivity of the partially miscible binary system acetonitrile-n-heptane is found to be a strong function of concentration; the concentration dependence is described using a linear relationship. The diffusion coefficient matrix of the ternary system acetonitrile-benzene-n-heptane is determined at a number of points, and the ternary diffusion matrices are found to be significantly coupled with the off-diagonal elements of about 10 to 40% of the main diffusion coefficients.