naa a22 4500 510821154 CHVBK 20180411083532.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11814-013-0001-3 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0001-3 Simultaneous influence of uni-univalent salt aqueous solutions and sodium dodecyl sulfate surfactant on interfacial tension of toluene-water [Elektronische Daten] [Javad Saien, Farzaneh Moghaddamnia, Mokhtar Mishi] The simultaneous influence of NaCl, KCl and KI salts and well known sodium dodecyl sulfate (SDS) surfactant on the interfacial tension (IFT) of conventionally used chemical system of toluene-water was studied. The concentration range of salts was within (0.010 to 0.075) mol/dm3 and of surfactant within (1.7 to 26.0)×10−5 mol/dm3. SDS adsorption on interface is highly intensified in the presence of salts and IFT can reach to 67.1% of its initial value. Accordingly, the role of ions was investigated and the order of salts effectiveness was revealed as KI≫KCl>NaCl. The obtained data, with both effects, were nicely reproduced using an equation of state, based on Gibbs adsorption equation and the Langmuir isotherm. Two relevant important adsorption parameters exhibited reasonable variations. Furthermore, the general revealed linear variation of IFT with a previously defined "effective concentration” indicates the strong influence of the surfactant counterions. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Interfacial Tension nationallicence Uni-univalent Salts nationallicence Equations of State nationallicence Toluene-water nationallicence SDS nationallicence Saien Javad Department of Applied Chemistry, Bu-Ali Sina University, 65174, Hamedan, Iran aut Moghaddamnia Farzaneh Department of Applied Chemistry, Bu-Ali Sina University, 65174, Hamedan, Iran aut Mishi Mokhtar Department of Applied Chemistry, Bu-Ali Sina University, 65174, Hamedan, Iran aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/5(2013-05-01), 1125-1130 0256-1115 30:5<1125 2013 30 11814 https://doi.org/10.1007/s11814-013-0001-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0001-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Saien Javad Department of Applied Chemistry, Bu-Ali Sina University, 65174, Hamedan, Iran aut NATIONALLICENCE 700 1- Moghaddamnia Farzaneh Department of Applied Chemistry, Bu-Ali Sina University, 65174, Hamedan, Iran aut NATIONALLICENCE 700 1- Mishi Mokhtar Department of Applied Chemistry, Bu-Ali Sina University, 65174, Hamedan, Iran aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/5(2013-05-01), 1125-1130 0256-1115 30:5<1125 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer