Experimental approach of the relation between surface tension and interfacial thickness of simple liquids

Application of the UNIFAC model for prediction of surface tension and thickness of the surface layer in the binary mixtures

“…Generally, in surface thermodynamics, the thickness of the interface is considered as an unknown, even though some works have been developed in order to estimate its order of magnitude [29,30]. In this work, a method of evaluating the thickness of surface, t, for miscible binary liquids is developed.…”

“…If the thickness is estimated from independent studies (for example ellipsometry), Eq. (19) could be used for obtaining the relative Gibbs adsorption or the composition of the interfacial layer [29].…”

Plasma physics of liquids—A focused review

“…285 This thickness strongly depends on experimental conditions, as it grows with temperature [286][287][288] and shrinks with surface tension. 289 According to simple theory, all salts undergo a clear interfacial charge separation with the formation of an ionic double layer, while several molecular dynamics simulations have shown this to be incorrect in some cases. 290 For the case of aqueous solutions, the exact composition and electrical structure of the interfacial region depend on the nature and bulk concentration of solutes in a complex manner.…”

Prediction of surface tension, surface mole fraction and thickness of the surface layer in the ionic liquid binary mixtures

“…The deviation between experimental and calculated data is due to Generally, in surface thermodynamics, the surface thickness is con-210 sidered as an unknown, even though some works have been developed 211 in order to estimate its order of magnitude [34,40]. In the present work, Table 1 and 2), the graph shows the very slow falling trend [42].…”

“…Because of 33 their interesting physical and chemical properties such as negligible 34 vapor pressure, unique permittivity, high thermal stability, good solu- 35 bility for both organic and inorganic substances, and high electrical con- 36 ductivity [3][4][5], they offer new applications in preparative chemistry 37 and chemical engineering as new reaction media for chemical synthesis 38 [6], biocatalysts [7], nanomaterial technologies [8], electrochemical ap- 39 plications [9] and separation processes [10]. So far, most effort in ILs 40 has been focused on the experimental and theoretical investigation of 41 their physical and chemical properties, such as melting point, viscosity, 42 density, thermal and electrochemical stability, solvent properties, and 43 surface tension [11][12][13][14][15][16][17][18][19].…”