Ion pair formation in copper sulfate aqueous solutions at high temperatures

Ionic association between Cu2+(aq) and SO42-(aq) has been studied in the temperature range (298 to 473) K using a spectrophotometric technique. Experiments were designed to minimize the contribution of other protolytic equilibria in solution. The values of the ionic association equilibrium constant...

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Autores principales:	Méndez De Leo, L.P., Bianchi, H.L., Fernández-Prini, R.
Formato:	JOUR
Materias:	Aqueous solutions Copper sulfate Equilibrium association constant High temperature Electrolytes Electrostatics High temperature effects Mathematical models Permittivity Positive ions Relaxation processes Solvents Chemical potential Multicharged electrolytes Copper compounds
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00219614_v37_n5_p499_MendezDeLeo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00219614_v37_n5_p499_MendezDeLeo
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spelling	todo:paper_00219614_v37_n5_p499_MendezDeLeo2023-10-03T14:24:54Z Ion pair formation in copper sulfate aqueous solutions at high temperatures Méndez De Leo, L.P. Bianchi, H.L. Fernández-Prini, R. Aqueous solutions Copper sulfate Equilibrium association constant High temperature Electrolytes Electrostatics High temperature effects Mathematical models Permittivity Positive ions Relaxation processes Solvents Chemical potential Copper sulfate Equilibrium association constant Multicharged electrolytes Copper compounds Ionic association between Cu2+(aq) and SO42-(aq) has been studied in the temperature range (298 to 473) K using a spectrophotometric technique. Experiments were designed to minimize the contribution of other protolytic equilibria in solution. The values of the ionic association equilibrium constant at different temperatures and pressures were fitted to an appropiate equation that allows the calculation of the thermodynamic quantities for states close to the saturation line. Using Bjerrum's model for ionic association evidence for two ion pair populations was obtained. The process of ion pairing is discussed and a possibility to reconcile the continuum model (Bjerrum) with molecular simulation results is suggested. © 2004 Elsevier Ltd. All rights reserved. Fil:Méndez De Leo, L.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bianchi, H.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Fernández-Prini, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00219614_v37_n5_p499_MendezDeLeo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Aqueous solutions Copper sulfate Equilibrium association constant High temperature Electrolytes Electrostatics High temperature effects Mathematical models Permittivity Positive ions Relaxation processes Solvents Chemical potential Copper sulfate Equilibrium association constant Multicharged electrolytes Copper compounds
spellingShingle	Aqueous solutions Copper sulfate Equilibrium association constant High temperature Electrolytes Electrostatics High temperature effects Mathematical models Permittivity Positive ions Relaxation processes Solvents Chemical potential Copper sulfate Equilibrium association constant Multicharged electrolytes Copper compounds Méndez De Leo, L.P. Bianchi, H.L. Fernández-Prini, R. Ion pair formation in copper sulfate aqueous solutions at high temperatures
topic_facet	Aqueous solutions Copper sulfate Equilibrium association constant High temperature Electrolytes Electrostatics High temperature effects Mathematical models Permittivity Positive ions Relaxation processes Solvents Chemical potential Copper sulfate Equilibrium association constant Multicharged electrolytes Copper compounds
description	Ionic association between Cu2+(aq) and SO42-(aq) has been studied in the temperature range (298 to 473) K using a spectrophotometric technique. Experiments were designed to minimize the contribution of other protolytic equilibria in solution. The values of the ionic association equilibrium constant at different temperatures and pressures were fitted to an appropiate equation that allows the calculation of the thermodynamic quantities for states close to the saturation line. Using Bjerrum's model for ionic association evidence for two ion pair populations was obtained. The process of ion pairing is discussed and a possibility to reconcile the continuum model (Bjerrum) with molecular simulation results is suggested. © 2004 Elsevier Ltd. All rights reserved.
format	JOUR
author	Méndez De Leo, L.P. Bianchi, H.L. Fernández-Prini, R.
author_facet	Méndez De Leo, L.P. Bianchi, H.L. Fernández-Prini, R.
author_sort	Méndez De Leo, L.P.
title	Ion pair formation in copper sulfate aqueous solutions at high temperatures
title_short	Ion pair formation in copper sulfate aqueous solutions at high temperatures
title_full	Ion pair formation in copper sulfate aqueous solutions at high temperatures
title_fullStr	Ion pair formation in copper sulfate aqueous solutions at high temperatures
title_full_unstemmed	Ion pair formation in copper sulfate aqueous solutions at high temperatures
title_sort	ion pair formation in copper sulfate aqueous solutions at high temperatures
url	http://hdl.handle.net/20.500.12110/paper_00219614_v37_n5_p499_MendezDeLeo
work_keys_str_mv	AT mendezdeleolp ionpairformationincoppersulfateaqueoussolutionsathightemperatures AT bianchihl ionpairformationincoppersulfateaqueoussolutionsathightemperatures AT fernandezprinir ionpairformationincoppersulfateaqueoussolutionsathightemperatures
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Ion pair formation in copper sulfate aqueous solutions at high temperatures

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