Use of packed thermal diffusion columns to determine the soret coefficient in a benzene-carbon tetrachloride mixture

Experimental results of the determination of the Soret coefficient of a benzene-carbon tetrachloride mixture in a packed column with reservoirs at the ends are presented.Notation c concentration - density - z vertical coordinate - L length of the column - d diameter of the glass balls - coefficient of dynamic viscosity - coefficient of thermal expansion - k permeability of the packing - T temperature - B perimeter of the working gap - H and K transport coefficients - M mass of the fluid in the reservoir at the end of the column - M/BL - y Hz/K - H sg²k(T)²B/12) Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 41, No. 3, pp. 503–506, September, 1981.