INFIQC   05475
INSTITUTO DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Unidad Ejecutora - UE
artículos
Título:
Ion transfer of weak acids across liquid| liquid interfaces
Autor/es:
R.A. FERNÁNDEZ; F. VEGA MERCADO; S.A. DASSIE; F.M. ZANOTTO
Revista:
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
Editorial:
ELSEVIER
Referencias:
Lugar: Amsterdam; Año: 2016 vol. 774 p. 111 - 121
ISSN:
0022-0728
Resumen:
The main purpose of this paper is to develop a model for the ion transfer ofweak acids across liquid|liquid interfacesincluding ion pairing and non-ideal electrolyte solutions to calculate the half-wave potential. The mainequation derived in this model allows the simulation of different chemical systems, comprising multiple acidbaseequilibria, hydrophilic and hydrophobic neutral weak acids, and different anions, including ion-pair formationin the organic phase. Hence, several representative chemical systems are analysed in detail in order to demonstratethe usefulness of the model. In addition, simple criteria to evaluate the presence of ion-pairs in theorganic phase as well as the calculation of the apparent ion-pair formation constants are included