Parameters Based on Turbidity Data

The interpretation of turbidities in the absence of angular dissymmetry was developed by Stockmayer from the fluctuation of the refractive index in multicomponent systems. The turbidity t of a solution of C component at constant T and P is given by the equation 

For a one-component micellar solution, we have the following equation from (5.66) and (5.88)  

The experimental results obtained for two nonionic surfactants—penta- and hexaoxyethylene dodecyl ethers (C12E5 and C12E6)— are illustrated in Figs. 5.1 and 5.2 for the mean micelle aggregation number and its distribution, respectively. The effect of pressure on these quantities is also illustrated. 

Thermodynamics of Small Systems, Vols. 1 and 2, Benjamin, New York (1963, 1964). 

Prigogine and R. Defay, Chemical Thermodynamics, Chapter 1, Longmans, New York (1967). 

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