Thermodynamic parameters of clouding phenomenon in nonionic surfactants: The effect of the electrolytes

Basit Öğe Kaydı
dc.contributor.authorBatigoc, Cigdem
dc.contributor.authorAkbas, Halide
dc.date.accessioned2024-06-12T10:56:41Z
dc.date.available2024-06-12T10:56:41Z
dc.date.issued2017
dc.departmentTrakya Üniversitesien_US
dc.description.abstractIn this study, the thermodynamics of the cloud point (CP) of the two non-ionic surfactants, polyoxyethylene (40) iso octylphenyl ether, (TX-405) and polyoxyethylene (23) lauryl ether, Brij-35 were investigated in different electrolyte concentrations. In the measurements of cloud point temperatures, UV-visible spectrophotometer was used instead of visual observation. Li2SO4, Na2SO4, KNO3, K2SO4, K3PO4 and (NH4)(2)SO4 were used as electrolytes. Thermodynamic parameters were calculated from cloud point values of nonionic surfactant-electrolyte mixtures. The CP values in the presence of KNO3 were obtained by an extrapolation of the straight line. The results of the energetics of clouding showed that the standard Gibbs free energy (triangle G(cp)(o)) was positive but the enthalpy (triangle H-cp(o)) and the entropy (triangle S-cp(o)) were negative in all cases. Furthermore, the enthalpy-entropy compensation relationship was estimated and the compensation temperature values (Tc) values were found as 389.70 K and 391.19 K for TX-405 and Brij-35, respectively. (C) 2017 Published by Elsevier B.V.en_US
dc.description.sponsorshipThe Scientific Research Fund of Trakya University [TUBAP-783]en_US
dc.description.sponsorshipThis work is supported by The Scientific Research Fund of Trakya University (Project No: TUBAP-783).en_US
dc.identifier.doi10.1016/j.molliq.2017.02.024
dc.identifier.endpage513en_US
dc.identifier.issn0167-7322
dc.identifier.issn1873-3166
dc.identifier.scopus2-s2.0-85013119757en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage509en_US
dc.identifier.urihttps://doi.org/10.1016/j.molliq.2017.02.024
dc.identifier.urihttps://hdl.handle.net/20.500.14551/19883
dc.identifier.volume231en_US
dc.identifier.wosWOS:000399507300062en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofJournal Of Molecular Liquidsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCloud Pointen_US
dc.subjectPhase Separationen_US
dc.subjectNonionic Surfactanten_US
dc.subjectThermodynamic Parametersen_US
dc.subjectEnthalpy-Entropy Compensationen_US
dc.subjectEnthalpy-Entropy Compensationen_US
dc.subjectDrug Imipramine Hydrochlorideen_US
dc.subjectTriton X-100en_US
dc.subjectOrganic Additivesen_US
dc.subjectAqueous-Solutionsen_US
dc.subjectPhase-Separationen_US
dc.subjectPointen_US
dc.subjectBehavioren_US
dc.subjectMicellizationen_US
dc.subjectMixturesen_US
dc.titleThermodynamic parameters of clouding phenomenon in nonionic surfactants: The effect of the electrolytesen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu