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Effect of KCl and Na2SO4 on the solubility of glycine and DL-alanine in water at 298.15 K

2005Journal article Restricted access
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dc.contributor.authorFerreira, Luísa
dc.contributor.authorMacedo, Eugénia A.
dc.contributor.authorPinho, Simão
dc.date.accessioned2010-02-07T18:54:44Z
dc.date.available2010-02-07T18:54:44Z
dc.date.issued2005
dc.description.abstractThe solubility of glycine and DL-alanine in aqueous systems of KCl and Na2SO4 at 298.15 K was measured at different salt concentrations using the analytical gravimetric method. The experimental data obtained in this work and those previously reported in the literature for the same systems were compared, and it was possible to show a big discrepancy for the water- KCl-amino acid systems and a very satisfactory agreement for the water-Na2SO4-amino acid systems. The solubility data from this work and the activity coefficients data from literature were used to explore the potentialities of the Pitzer-Simonson-Clegg equations for the thermodynamic description of the ternary systems water-KCl with glycine or DL-alanine at 298.15 K. This model, with five adjustable parameters, gives a global root-mean-square deviation of 0.0036 for the correlation of the activity coefficients and 0.63 g/(kg of water) for the solubility in those ternary systems.pt
dc.identifier.citationFerreira, Luísa; Macedo, Eugénia; Pinho, Simão (2005). Effect of KCl and Na2SO4 on the solubility of glycine and DL-alanine in water at 298.15 K. Industrial Engineering Chemistry Research. ISSN 1520-5045. 44:23 p.8892-8898pt
dc.identifier.doi10.1021/ie050613q
dc.identifier.issn1520-5045
dc.identifier.urihttp://hdl.handle.net/10198/1730
dc.language.isoengpt
dc.publisherACSpt
dc.subjectSolubilitypt
dc.subjectAmino acidspt
dc.subjectElectrolytept
dc.titleEffect of KCl and Na2SO4 on the solubility of glycine and DL-alanine in water at 298.15 Kpt
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage8898pt
oaire.citation.issue44(23)pt
oaire.citation.startPage8892pt
oaire.citation.titleIndustrial Engineering Chemistry Researchpt
person.familyNamePinho
person.givenNameSimão
person.identifier810882
person.identifier.ciencia-id481D-73AD-8D0F
person.identifier.orcid0000-0002-9211-857X
person.identifier.ridD-4148-2013
person.identifier.scopus-author-id7003570175
rcaap.rightsrestrictedAccesspt
rcaap.typearticlept
relation.isAuthorOfPublication8ef7789a-34f3-4915-a666-4efe26272a30
relation.isAuthorOfPublication.latestForDiscovery8ef7789a-34f3-4915-a666-4efe26272a30

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