Abstract
The diffusion of molecular sulfur across a saturated liquid-liquid interface has been investigated for several molecular pairs, using a method previously described. The interfacial resistance does not directly depend on polarity of the liquids, nor can it be correlated with interfacial tension. High resistances are associated with liquids which show a high degree of hydrogen bonding. With suitable assumptions it is possible to calculate a free energy of activation for transfer across the interface. It appears that transfer in systems involving negligible resistance is analogous to van der Waals adsorption, while for systems involving high resistance the process is comparable to chemisorption.
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