Summary
The viscosities of nonaqueous solutions of magnesium caprate and magnesium laurate have been determined at different concentrations and temperatures. Because Arrhenius' equation was found to be applicable to these solutions, it has been concluded that the size of the micelles does not change with the increase in temperature.
The variation of relative viscosity with temperature was also calculated. The fact that the value of d/dt (νs/νo) does not change much with temperature further supports the conclusion that the molecular aggregation of the soap molecules in the solvent is not affected by the temperature.
The equation of Schulze and Blaschke is not applicable to these solutions within the concentration range studied in the present work, probably because the size of the micelles changes with the increasing concentration of the soaps.
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