| Abstract
| - Binary mutual diffusion coefficients (interdiffusion coeffcients) have been measured for aqueous solutions ofβ-cyclodextrin (β-CD) at concentrations from (0.002 to 0.008) mol·dm-3. The effect of temperature, from (298.15to 312.15) K, was also analyzed. The concentration dependence of D is discussed on the basis of Hartley's equation.The activation energy for the diffusion process, 18719 J·mol-1, was calculated from data of D at differenttemperatures. This activation energy is in good agreement with that estimated using Stokes−Einstein equation(18644 J·mol-1). Activity coefficients for aqueous β-CD solutions were also estimated from Hartley equationand experimental D.
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