TY - JOUR

T1 - Calculation of the change in the solid-liquid interfacial tension for adsorption from binary liquid mixtures

AU - Király, Zoltán

AU - Dékány, Imre

PY - 1988/1/1

Y1 - 1988/1/1

N2 - A non-graphical solution of the Gibbs adsorption isotherm equation is proposed for solid-binary liquid systems which obey the Everett-Schay function. The composition dependence of the bulk activity is represented by the n parametric Redlich-Kister equation. The interfacial tension σ is then expressed as a function of the mole fraction x1 according to σ(x1) = σ02 + J ln (1 + Kx1)+ {A figure is presented}Ljxj+11. A physical meaning is assigned to each parameter σ02, J, K, Lj. The application of the equation derived is presented for several solid-binary liquid systems and the dependence of the results on the reliability of the activity data is considered. The method can also be applied to liquid-vapour interfaces.

AB - A non-graphical solution of the Gibbs adsorption isotherm equation is proposed for solid-binary liquid systems which obey the Everett-Schay function. The composition dependence of the bulk activity is represented by the n parametric Redlich-Kister equation. The interfacial tension σ is then expressed as a function of the mole fraction x1 according to σ(x1) = σ02 + J ln (1 + Kx1)+ {A figure is presented}Ljxj+11. A physical meaning is assigned to each parameter σ02, J, K, Lj. The application of the equation derived is presented for several solid-binary liquid systems and the dependence of the results on the reliability of the activity data is considered. The method can also be applied to liquid-vapour interfaces.

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U2 - 10.1016/0166-6622(88)80077-5

DO - 10.1016/0166-6622(88)80077-5

M3 - Article

AN - SCOPUS:0024107077

VL - 34

SP - 1

EP - 11

JO - Colloids and Surfaces

JF - Colloids and Surfaces

SN - 0166-6622

IS - 1

ER -