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Biophysical Journal 6: 813-823 (1966)
© 1966 the Biophysical Society

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Diffusion of Salts across a Butanol-Water Interface

H. P. Ting, G. L. Bertrand and D. F. Sears

ABSTRACT

Diffusion of the chloride salts of Li, Na, K, Rb, and Cs from water into 1-butanol and from 1-butanol into water was examined at temperatures from 13-40°C. Distribution coefficients, interfacial transfer coefficients, Arrhenius activation energy, free energy of activation, enthalpy, and entropy of activation were determined for the diffusion of these salts across the alcohol-water interface. The results indicate that the entropy decrease made the major contribution to the change in the free energy of activation.






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Copyright © 1966 by the Biophysical Society.