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dc.contributor.author
Alvarez, Jorge
dc.contributor.author
Fernandez Prini, Roberto
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dc.date.available
2019-04-05T00:41:29Z
dc.date.issued
2008-03
dc.identifier.citation
Alvarez, Jorge; Fernandez Prini, Roberto; A model-guided determination of Δdis G2 ∞ for slightly soluble gases in water using solubility data: From the solvent's freezing point to its critical point; Springer/Plenum Publishers; Journal Of Solution Chemistry; 37; 3; 3-2008; 433-448
dc.identifier.issn
0095-9782
dc.identifier.uri
http://hdl.handle.net/11336/73240
dc.description.abstract
There is continuing interest in the description of the solubility of nonpolar gases in water over a wide range of temperatures. On one hand, the solubility data are used in many fields of science and technology; and on the other hand, simulation and theoretical calculations require experimental data to test their results and predictions. For these reasons it is important to have a means of calculating from the experimental solubility data the Gibbs energy of dissolution of gases (Δdis G 2 ∞ ) and Henry's constant (k H) over all the temperature range of existence of liquid water. Under ambient conditions it is relatively easy to relate Δdis G 2 ∞ and, hence, k H to the solubility data of nonpolar gases. However, this simple procedure becomes increasingly complicated as the temperature approaches the critical temperature of the solvent and it is necessary to make important corrections to obtain the thermodynamic quantities for the dissolution process. This difficulty can be resolved with a procedure that employs a perturbation method applied to a simple model solvent to guide the correct determination of k H and Δdis G 2 ∞ . We describe in this work an iterative calculation procedure whose correctness was validated with a thermodynamic relationship that uses only experimental data, hence it is model-free. Unfortunately this relationship can be applied only to a few systems due to its data requirements. The iterative procedure described in this work can be extended to higher pressures, p≅50 MPa above the solvent's vapor pressure, and also to gases dissolved in nonaqueous solvents.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer/Plenum Publishers
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Aqueous Solutions
dc.subject
Solubility of Gases
dc.subject
Thermodynamic Properties
dc.subject.classification
Otras Ciencias Químicas
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
A model-guided determination of Δdis G2 ∞ for slightly soluble gases in water using solubility data: From the solvent's freezing point to its critical point
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-27T17:53:12Z
dc.journal.volume
37
dc.journal.number
3
dc.journal.pagination
433-448
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Hamburgo
dc.description.fil
Fil: Alvarez, Jorge. Comisión Nacional de Energía Atómica; Argentina
dc.description.fil
Fil: Fernandez Prini, Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Comisión Nacional de Energía Atómica; Argentina
dc.journal.title
Journal Of Solution Chemistry
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10953-007-9235-1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10953-007-9235-1
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