• Citer

III. The importance of diffusion in the adsorption process of some alcohols and acids in dilute aqueous solutions

par Defay, Raymond ;Hommelen, Jacques
Référence Journal of Colloid Science, 14, 4, page (411-418)
Publication Publié, 1959-08

Article révisé par les pairs

• Accès en ligne
• Détails
• Contenu
• Statistiques

Résumé :

With the use of accurately obtained values of static and dynamic surface tensions, the procedure of Ward and Tordai has been followed to investigate the nature of the adsorption mechanism. It was found that with the dilute aqueous solutions of mono-alcohols and mono-acids studied, adsorption at the air-solution interface occurred in each instance at a rate governed by a diffusion process. Some results obtained by other workers are also shown to be consistent with a diffusion mechanism. For the dicarboxylic acid studied (azelaic acid) it is necessary to postulate an activation energy barrier for the latter part of the aging process. © 1959.