[article]
| Titre : |
Thermodynamics of micellization and conductance behavior of uranyl soap solutions |
| Type de document : |
texte imprimé |
| Auteurs : |
V. Sharma, Auteur ; M. Sharma, Auteur ; D. Gautam, Auteur |
| Année de publication : |
2010 |
| Article en page(s) : |
p. 254-257 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Micelles
Savon
Surfactants
|
| Tags : |
Savon 'Concentration micellaire critique' Conductivité Dissociation Association |
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
The conductance results showed that uranyl soaps behave as weak electrolyte in dilute solution of N,N-dimethylformamide (DMF) at various temperatures below the critical micelle concentration, indicating that Debye–Hückel–Onsager's equation is not applicable to these soaps solutions. The value of critical micelle concentration decreases with increasing chain length of the soap and increasing temperature. The results were used to evaluate various thermodynamic parameters for both dissociation and association processes and may be satisfactorily explained in the light of phase separation model. The results show that the dissociation process of these soaps was found to be endothermic while micellization is exothermic in nature. |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9806 |
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 47, N° 4/2010 (07-08/2010) . - p. 254-257
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