pH and the Surface Tension of Water (CROSBI ID 204522)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Beattie, James K ; Djerdjev, Alex M ; Gray-Weale, Angus ; Kallay, Nikola ; Lützenkirchen, Johannes ; Preočanin, Tajana, Preočanin ; Selmani, Atiđa
engleski
pH and the Surface Tension of Water
Despite the strong adsorption of hydroxide ions, the surface tension of water is almost independent of pH between pH 1 and 13 when the pH is adjusted by addition of HCl or NaOH. This is consistent with the Gibbs adsorption isotherm which measures the surface excess of all species in the double layer, if hydronium ions and hydroxide ions are adsorbed and sodium and chloride ions are not. The surface tension becomes pH dependent around pH 7 in millimolar NaCl or KCl solutions, for now sodium ions can replace hydronium ions as counterions to the adsorbed hydroxide ions
ension; air/water interface; pH; Gibbs isotherm; salt effect
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Podaci o izdanju
422
2014.
54-57
objavljeno
0021-9797
10.1016/j.jcis.2014.02.003