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Introduction of the Surface Complexation Model into the Theory of Colloid Stability

Nikola Kallay ; Laboratory of Physical Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Marulićev trg 19, P.O. Box 163, 10000 Zagreb, Croatia
Suzana Žalac ; Laboratory of Physical Chemistry, Department of Chemistry, Faculty of Science, University of Zagreb, Marulićev trg 19, P.O. Box 163, 10000 Zagreb, Croatia

Puni tekst: engleski, pdf (193 KB) str. 479-497 preuzimanja: 282* citiraj
APA 6th Edition
Kallay, N. i Žalac, S. (2001). Introduction of the Surface Complexation Model into the Theory of Colloid Stability. Croatica Chemica Acta, 74 (3), 479-497. Preuzeto s https://hrcak.srce.hr/131840
MLA 8th Edition
Kallay, Nikola i Suzana Žalac. "Introduction of the Surface Complexation Model into the Theory of Colloid Stability." Croatica Chemica Acta, vol. 74, br. 3, 2001, str. 479-497. https://hrcak.srce.hr/131840. Citirano 07.03.2021.
Chicago 17th Edition
Kallay, Nikola i Suzana Žalac. "Introduction of the Surface Complexation Model into the Theory of Colloid Stability." Croatica Chemica Acta 74, br. 3 (2001): 479-497. https://hrcak.srce.hr/131840
Harvard
Kallay, N., i Žalac, S. (2001). 'Introduction of the Surface Complexation Model into the Theory of Colloid Stability', Croatica Chemica Acta, 74(3), str. 479-497. Preuzeto s: https://hrcak.srce.hr/131840 (Datum pristupa: 07.03.2021.)
Vancouver
Kallay N, Žalac S. Introduction of the Surface Complexation Model into the Theory of Colloid Stability. Croatica Chemica Acta [Internet]. 2001 [pristupljeno 07.03.2021.];74(3):479-497. Dostupno na: https://hrcak.srce.hr/131840
IEEE
N. Kallay i S. Žalac, "Introduction of the Surface Complexation Model into the Theory of Colloid Stability", Croatica Chemica Acta, vol.74, br. 3, str. 479-497, 2001. [Online]. Dostupno na: https://hrcak.srce.hr/131840. [Citirano: 07.03.2021.]

Sažetak
This article shows that the introduction of the Surface Complexation model into the »family« of theories that comprise the Theory of Colloid Stability makes that theory »absolute«. This means that one characterizes the electrical interfacial layer, e.g. by adsorption measurements, and calculates the equilibrium parameters, such as the equilibrium constants of protonation and deprotonation of amphoteric surface OH groups, equilibrium constants of the association of counterions, capacitances of inner and outer interfacial layers and the total concentration of surface sites. From these equilibrium parameters one evaluates the potential at the onset of the diffuse layer (Φd) and calculates the electrostatic interaction energy yielding the rate constant of aggregation and the stability coefficient. It is shown that counterion association plays an important role in the aggregation phenomena by reducing the value of potential Φd.

Ključne riječi
particle aggregation; electrical interfacial layer; surface potentials; interfacial equilibrium; counterion association; surface complexation model; theory of colloid stability; stability coefficient

Hrčak ID: 131840

URI
https://hrcak.srce.hr/131840

Posjeta: 457 *