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Adsorption of CTAB on Zeolite A Detected by Surfactant Ion-selective Electrode / Y.-Y. Luo in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 46, N° 3/2009 (05-06/2009)
[article]
Titre : Adsorption of CTAB on Zeolite A Detected by Surfactant Ion-selective Electrode Type de document : texte imprimé Auteurs : Y.-Y. Luo, Auteur ; Z.-P. Du, Auteur ; Y. H. Lu, Auteur ; B.-X. Liu, Auteur Année de publication : 2009 Article en page(s) : p. 175-178 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adsorption
Electrodes
Ions
Surfactants
ZéolitesTags : Ion-selective electode Catinic surfactants Zeolite A Adsorption isotherm Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Adsorption of cationic surfactant, cetyltrimethylammonium bromide (CTAB) on zeolite A has been investigated using surfactant-selective electrode technique. The electrode consisted of a polyvinyl chloride (PVC) membrane based on neutral ion-pair carrier complex of cetyltrimethylammonium tetraphenylborate (CTA+TPB–). Adsorbance of CTAB on zeolite A was calculated from the potential and concentration response characteristics of the surfactant-selective electrode to get the surfactant adsorption isotherms. Adsorption isotherm of CTAB was S-shaped. The adsorbance was related to pH and electrolyte in the surfactant solutions. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5498
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 46, N° 3/2009 (05-06/2009) . - p. 175-178[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011337 - Périodique Bibliothèque principale Documentaires Disponible Micellar studies of magnesium soaps using ion-selective electrode / Lal Chand Heda in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 5/2008 (09-10/2008)
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Titre : Micellar studies of magnesium soaps using ion-selective electrode Type de document : texte imprimé Auteurs : Lal Chand Heda, Auteur ; S. Mosalpuri, Auteur ; C. Pareek, Auteur ; D. Pareek, Auteur Année de publication : 2008 Article en page(s) : p. 268-273 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Ion-selective electrode Micellization EMF (Electromotive Force) Hydrophilic oleomicelle Lipophilic hydromicelle Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Magnesium soaps of caproic and caprylic acids were prepared and a cell was set up for the measurement of EMF (electromotive force) of the cell containing referred soap solutions in methanol water solvent system with the aid of ion-selective electrode. The critical micelle concentration of soap solutions was determined by plotting the electromotive force of the cell against soap concentration. The critical micelle concentration of these soap solutions varies with increase in chain length of the fatty acids in the soap. The energetic studies of the system have been carried out from the electromotive force values of the cell containing soap solution to ascertain the chain length compatibility and agglomeration profile. The values of free energy change are negative indicating the spontaneity of cell reaction and decreases with increasing soap concentration while increases with the increase methanol concentration in solvent mixture. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3041
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 45, N° 5/2008 (09-10/2008) . - p. 268-273[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010682 - Périodique Bibliothèque principale Documentaires Disponible