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Diffusion coefficients of ethanol in various ethanol–water solutions have been measured at temperatures up to 72.5°. At each temperature the product of diffusion coefficient and viscosity passes through a maximum at 8 mol.‐% ethanol and through a minimum at 32–37 mol.‐% ethanol with increasing concentration. From extrapolated values the variation of diffusion coefficient with composition at normal boiling point has been found.
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Smith et al. (1952) studied this question.
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