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Interactions of Sodium Dodecylbenzenesulfonate and Calcite in 0.55 M NaCl Solution

Damir Krznarić ; Ruđer Bošković Institute, Center for Marine Research, P.O.B. 1016, 10001 Zagreb, Croatia
Nada Filipović-Vinceković ; Ruđer Bošković Institute, Department of Chemistry, P.O.B. 1016, 10001 Zagreb, Croatia
Vesna Babić-Ivančić ; Ruđer Bošković Institute, Department of Chemistry, P.O.B. 1016, 10001 Zagreb, Croatia
Halka Bilinski ; Ruđer Bošković Institute, Department of Chemistry, P.O.B. 1016, 10001 Zagreb, Croatia

Puni tekst: engleski, pdf (18 MB) str. 95-109 preuzimanja: 107* citiraj
APA 6th Edition
Krznarić, D., Filipović-Vinceković, N., Babić-Ivančić, V. i Bilinski, H. (1997). Interactions of Sodium Dodecylbenzenesulfonate and Calcite in 0.55 M NaCl Solution. Croatica Chemica Acta, 70 (1), 95-109. Preuzeto s https://hrcak.srce.hr/135607
MLA 8th Edition
Krznarić, Damir, et al. "Interactions of Sodium Dodecylbenzenesulfonate and Calcite in 0.55 M NaCl Solution." Croatica Chemica Acta, vol. 70, br. 1, 1997, str. 95-109. https://hrcak.srce.hr/135607. Citirano 12.12.2019.
Chicago 17th Edition
Krznarić, Damir, Nada Filipović-Vinceković, Vesna Babić-Ivančić i Halka Bilinski. "Interactions of Sodium Dodecylbenzenesulfonate and Calcite in 0.55 M NaCl Solution." Croatica Chemica Acta 70, br. 1 (1997): 95-109. https://hrcak.srce.hr/135607
Harvard
Krznarić, D., et al. (1997). 'Interactions of Sodium Dodecylbenzenesulfonate and Calcite in 0.55 M NaCl Solution', Croatica Chemica Acta, 70(1), str. 95-109. Preuzeto s: https://hrcak.srce.hr/135607 (Datum pristupa: 12.12.2019.)
Vancouver
Krznarić D, Filipović-Vinceković N, Babić-Ivančić V, Bilinski H. Interactions of Sodium Dodecylbenzenesulfonate and Calcite in 0.55 M NaCl Solution. Croatica Chemica Acta [Internet]. 1997 [pristupljeno 12.12.2019.];70(1):95-109. Dostupno na: https://hrcak.srce.hr/135607
IEEE
D. Krznarić, N. Filipović-Vinceković, V. Babić-Ivančić i H. Bilinski, "Interactions of Sodium Dodecylbenzenesulfonate and Calcite in 0.55 M NaCl Solution", Croatica Chemica Acta, vol.70, br. 1, str. 95-109, 1997. [Online]. Dostupno na: https://hrcak.srce.hr/135607. [Citirano: 12.12.2019.]

Sažetak
Complex mutual interactions of calcite and sodium dodecylbenzene sulfonate (NaDBS) were studied in 0.55 M NaCl solution, using several complementary techniques.
Adsorption of NaDBS on calcite could be resolved from other processes such as adsorption onto the reaction vessel and/or formation of solid crystalline phase, when a special a.c. voltammetric procedure was used below the critical micelle concentration (c.m.c. = = 9 x 10-5 mol/L). A two-plateau type isotherm was obtained. Initial adsorption of NaDBS occurs at Ca2+ ions on the calcite/solution interface through electrostatic interactions. The second stage of adsorption was described as hydrophobic interaction between hydrocarbon chains from bulk solution and those electrostatically adsorbed on calcite, forming surface aggregates.
The results of adsorption were analyzed by a two-step adsorption model. The equilibrium constants and &2 for the first and second adsorption step, the surface aggregation number, re, the amount of adsorbed monomer, the saturated adsorption, rm and the standard free energy of surface aggregate formation for one mole of surfactant, AG^m, were calculated.

Hrčak ID: 135607

URI
https://hrcak.srce.hr/135607

Posjeta: 187 *