Abstract

The measurement of diffusion coefficients in dilute solutions of electrolytes can be effectively and accurately carried out using birefringence. An interferometer utilizing birefringence has been constructed by the authors and is described. A flowing-junction cell is also used. The four available methods for the calculation of the diffusion coefficient are discussed. A Ferranti Sirius computer has been programmed to handle the calculations. Diffusion coefficients for the systems sucrose-water, monoethanolamine-water, and diethanolamine-water are reported.

© 1965 Optical Society of America

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