Isotherm parameters of selected surfactants

The definition of the parameters of the Frumkin isotherm, which coincide with the Langmuir isotherm at a = 0, is given in Chapter 2 by Eqs (2.43) and (2.44). 

Appendix 5E Mutual Solubility of Organic Solvents and Water 

Liquid Temperature [°C] Solubility in water [mol-%] Water in org. solvent [mol-%] Reference 

Appendix 5F Numerical Algorithm to Solve the Gauss-Laplace Equation 

The second order ordinary differential equation (5E.1) can be rewritten in form of a system of first order differential equations (Lohnstein 1906), 

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