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Abstract:

The effect of cosolvents on the solubility equilibria near the critical end-point of binary mixtures is analyzed. The problem has received recent attention for the particular case of ionic cosolvents (Mazo, R. M. J. Phys. Chem. B 2007, 111, 7288-7290), where a pronounced salting-out effect was predicted. Here we make a thermodynamic analysis to view the problem from a different perspective. Our conclusions are that, at the critical end-point, the Setchenov constant, which reflects the effect of cosolvents on solubility equilibria, diverges following the behavior of the osmotic susceptibility and that the sign of this divergence is encoded in the critical end-line of the ternary system. © 2008 American Chemical Society.

Registro:

Documento: Artículo
Título:Solubility of solids in near-critical conditions: Effect of a third component
Autor:Gutkowski, K.I.; Fernández-Prini, R.; Japas, M.L.
Filiación:Unidad de Actividad Química, Comisión Nacional de Energía Atómica, Avenida del Libertador 8250, 1429-Buenos Aires, Argentina
INQUIMAE, Facultad de Ciencias Exactas y Naturales, UBA
Escuela de Ciencia y Tecnología, UNSAM
Idioma: Inglés
Palabras clave:Binary mixtures; Magnetic susceptibility; Organic solvents; Solubility; Thermodynamics; Ionic cosolvents; Solubility equilibria; Thermodynamic analysis; Solid solutions
Año:2008
Volumen:112
Número:18
Página de inicio:5671
Página de fin:5679
DOI: http://dx.doi.org/10.1021/jp712091q
Título revista:Journal of Physical Chemistry B
Título revista abreviado:J Phys Chem B
ISSN:15206106
CODEN:JPCBF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15206106_v112_n18_p5671_Gutkowski

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Citas:

---------- APA ----------
Gutkowski, K.I., Fernández-Prini, R. & Japas, M.L. (2008) . Solubility of solids in near-critical conditions: Effect of a third component. Journal of Physical Chemistry B, 112(18), 5671-5679.
http://dx.doi.org/10.1021/jp712091q
---------- CHICAGO ----------
Gutkowski, K.I., Fernández-Prini, R., Japas, M.L. "Solubility of solids in near-critical conditions: Effect of a third component" . Journal of Physical Chemistry B 112, no. 18 (2008) : 5671-5679.
http://dx.doi.org/10.1021/jp712091q
---------- MLA ----------
Gutkowski, K.I., Fernández-Prini, R., Japas, M.L. "Solubility of solids in near-critical conditions: Effect of a third component" . Journal of Physical Chemistry B, vol. 112, no. 18, 2008, pp. 5671-5679.
http://dx.doi.org/10.1021/jp712091q
---------- VANCOUVER ----------
Gutkowski, K.I., Fernández-Prini, R., Japas, M.L. Solubility of solids in near-critical conditions: Effect of a third component. J Phys Chem B. 2008;112(18):5671-5679.
http://dx.doi.org/10.1021/jp712091q