Title

Tracer caffeine diffusion in aqueous solutions at 298 K. The effect of caffeine self-association

RIS ID

67754

Publication Details

Price, W. E. (1989). Tracer caffeine diffusion in aqueous solutions at 298 K. The effect of caffeine self-association. Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 85 (2), 415-419.

Abstract

Tracer diffusion coefficients for caffeine in aqueous solutions are reported for the complete caffeine solubility range (0–0.1 mol dm–3) at 298 K. The results show a strong concentration dependence and are interpreted in terms of caffeine self-association. On the basis of a simple equilibrium model, estimates for the diffusion coefficients of the caffeine dimer and trimer are obtained.

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Link to publisher version (DOI)

http://dx.doi.org/10.1039/F19898500415