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Temperature induced emulsification and demulsification of pseudoternary mixtures of tween80 – butanol – kerosene – water system / Partha Mukherjee in Industrial & engineering chemistry research, Vol. 50 N° 21 (Novembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 21 (Novembre 2011) . - pp. 11889-11896 Titre : Temperature induced emulsification and demulsification of pseudoternary mixtures of tween80 – butanol – kerosene – water system Type de document : texte imprimé Auteurs : Partha Mukherjee, Auteur ; Sandhyamayee Sahu, Auteur ; Susanta Kumar Padhan, Auteur Année de publication : 2011 Article en page(s) : pp. 11889-11896 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Demulsification  Emulsification Résumé : The phase diagrams of pseudoternary mixtures of Tween80-butanol-kerosene-water system were constructed by visual titration. The major three domains, i.e., oil in water, bicontinuous, and water in oil microemulsions were demarcated through conductivity measurement. A sharp increase in specific conductance in increasing water content in the bicontinuous domain has been ascribed to the percolation of ions through water continuum. Temperature induced clouding behavior of the mixtures in the Winsor IV domains was investigated to find out the effect of composition on the clouding temperature. A generalized regression model was proposed considering the cloud point to be a function of surfactant/cosurfactant ratio and oil and emulsifier contents. The increase in all these parameters increases the cloud points of the mixture. In the turbid Winsor III domain, temperature has an emulsifying effect. With increase in temperature, the turbid phase separates to three different phases, which experience transparent, translucent, and turbid characteristics due to mass transfer from one phase to another. The mass transfer phenomenon was well visualized by using nickel as water-soluble and N-alkyl 4-(p-N,N-dimethylaminostyryl)pyridinium dyes as oil-soluble probes. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24697505 [article] Temperature induced emulsification and demulsification of pseudoternary mixtures of tween80 – butanol – kerosene – water system [texte imprimé] / Partha Mukherjee, Auteur ; Sandhyamayee Sahu, Auteur ; Susanta Kumar Padhan, Auteur . - 2011 . - pp. 11889-11896. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 21 (Novembre 2011) . - pp. 11889-11896 Mots-clés : Demulsification  Emulsification Résumé : The phase diagrams of pseudoternary mixtures of Tween80-butanol-kerosene-water system were constructed by visual titration. The major three domains, i.e., oil in water, bicontinuous, and water in oil microemulsions were demarcated through conductivity measurement. A sharp increase in specific conductance in increasing water content in the bicontinuous domain has been ascribed to the percolation of ions through water continuum. Temperature induced clouding behavior of the mixtures in the Winsor IV domains was investigated to find out the effect of composition on the clouding temperature. A generalized regression model was proposed considering the cloud point to be a function of surfactant/cosurfactant ratio and oil and emulsifier contents. The increase in all these parameters increases the cloud points of the mixture. In the turbid Winsor III domain, temperature has an emulsifying effect. With increase in temperature, the turbid phase separates to three different phases, which experience transparent, translucent, and turbid characteristics due to mass transfer from one phase to another. The mass transfer phenomenon was well visualized by using nickel as water-soluble and N-alkyl 4-(p-N,N-dimethylaminostyryl)pyridinium dyes as oil-soluble probes. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24697505