The Hill-de Boer equation in the adsorption of water on quartz

Andres Tornquist, Eliana Valencia, Luis Alzamora, Joaquin Cortes

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

13 Citas (Scopus)


Within the limitations imposed by the number of experimental points, it has been possible to establish that the system of water adsorbed on pure and methylated quartz has adsorption isotherms in which the quantity adsorbed increases with increasing temperature when plotted in terms of relative pressure. This behavior can be adequately described by the Hill-de Boer equation, even though the interpretation of the data by means of parameter K1 of the equation suggests that the water shows only dispersion interactions with the silica surface. This rather anomalous behavior of the system is in agreement with the previously published values of parameter S of the Frenkel-Halsey-Hill equation.

Idioma originalInglés
Páginas (desde-hasta)415-420
Número de páginas6
PublicaciónJournal of Colloid And Interface Science
EstadoPublicada - 1 oct. 1978
Publicado de forma externa


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