Document Type


Date of Award


Degree Name

Master of Science in Chemical Engineering - (M.S.)


Chemical Engineering

First Advisor

George C. Keeffe

Second Advisor

C. L. Mantell

Third Advisor

Joseph Joffe


The object of this thesis was to build an experimental apparatus and to study the diffusion of crystal violet in ethanol-water mixtures and diacetone alcohol-water mixtures. In order to validate experimental technique and to check the work of Mouquin Cathcart(1) who postulated compouhd formation in ethanol-water based on diffusion studies, experiments were conducted on the ethanol-water system in the area where compound formation was predicted.

In order to check the proposal of Konrad(2), based on studies of the heats of mixing that compound formation occurs between diacetone alcohol and water, studies were made on the diffusion of crystal violet in diacetone alcohol water mixtures. To study the diffusion coefficients on diacetone alcohol water it was necessary to obtain viscosity and density data on this system as these were not available in the literature.

The viscosity data taken during this study while not conclusive, does augment the evidence that compound formation(3) does exist. The viscosity curve shows that the viscosity of these mixtures reach a maximum and that the maximum point is shifted toward the pure component with the higher viscosity, diacetone alcohol.

The density of these mixtures increase with increasing water percentage up to approximately 70 per cent water where the density appears to be constant to 100 per cent water in the mixture.

The studies on diffusion coefficients are in accord with the work of Konrad(2) and indicate the probability of compound formation between diacetone alcohol and water.



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