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dc.contributor.authorNeto, Augusto Agostinho [UNESP]
dc.contributor.authorDrigo Filho, Elso [UNESP]
dc.contributor.authorFossey, Marcelo Andres [UNESP]
dc.contributor.authorNeto, João Ruggiero [UNESP]
dc.date.accessioned2022-04-28T19:56:10Z
dc.date.available2022-04-28T19:56:10Z
dc.date.issued1999-08-12
dc.identifier.citationJournal of Physical Chemistry B, v. 103, n. 32, p. 6809-6814, 1999.
dc.identifier.issn1089-5647
dc.identifier.urihttp://hdl.handle.net/11449/224382
dc.description.abstractA model describing dissociation of monoprotonic acid and a method for the determination of its pK value are presented. The model is based on a mean field approximation. The Poisson-Boltzmann equation, adopting spherical symmetry, is numerically solved, and the solution of its linearized form is written. By use of the pH values of a dilution experiment of galacturonic acid as the entry data, the proposed method allowed estimation of the value of pK = 3.25 at a temperature of 25°C. Values for the complex dimensions and dissociation degree are calculated using experimental pH values for solution concentration values ranging from 0.1 to 60 mM. The present analysis leads to the conclusion that the Poisson-Boltzmann equation or its linear form is equally suited for the description of such systems.en
dc.format.extent6809-6814
dc.language.isoeng
dc.relation.ispartofJournal of Physical Chemistry B
dc.sourceScopus
dc.titlepK Determination. A Mean Field, Poisson-Boltzmann Approachen
dc.typeArtigo
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationDepto. de Fis. Inst. de Biociencias Letras e Ciências Exatas UNESP 2265, Jd. Nazareth, 15054-000-R. Cristovão Colombo, Sao Jose do Rio Preto, SP
dc.description.affiliationUnespDepto. de Fis. Inst. de Biociencias Letras e Ciências Exatas UNESP 2265, Jd. Nazareth, 15054-000-R. Cristovão Colombo, Sao Jose do Rio Preto, SP
dc.identifier.scopus2-s2.0-0342675413
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