Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/52109
DC FieldValueLanguage
dc.contributor.authorOrtega, J.en_US
dc.contributor.authorNavas, A.en_US
dc.contributor.authorPlácido, J.en_US
dc.contributor.otherOrtega, Juan-
dc.contributor.otherPlacido Suarez, Jose-
dc.date.accessioned2018-11-25T17:32:38Z-
dc.date.available2018-11-25T17:32:38Z-
dc.date.issued2007en_US
dc.identifier.issn0021-9614en_US
dc.identifier.urihttp://hdl.handle.net/10553/52109-
dc.description.abstractExcess molar enthalpies HmE and excess molar volumes VmE have been determined experimentally at atmospheric pressure and at a temperature of 298.15 K, for a set of 25 binary mixtures composed of the first five methyl esters (methanoate to pentanoate) with five 1,ω-dibromoalkanes (1,2-dibromoethane to 1,6-dibromohexane). Most of the mixtures present positive net mixing effects, endothermic with dilatation, with the exception of those that contain butanoates and pentanoates with the shorter α,ω-dibromoalkanes, which present negative HmE values and, by contrast, negative VmE values when ω ≥ 5, but in both cases at high methyl ester compositions. The experimental data are correlated with a suitable polynomial equation, used previously by our group. Two known versions of the UNIFAC group contribution model are used, the original version by Dang and Tassios and the more recent version of Gmehling et al. The estimations are unacceptable in both cases, so the parameters corresponding to carboxylate/bromine interaction are recalculated for the former version, differentiating the interaction type according to ester acid chain. There is a marked improvement for the methanoate and ethanoate mixtures, although the estimations are not acceptable for the other esters. The second version of UNIFAC, by Gmehling et al., requires other data not available in the literature. © 2006 Elsevier Ltd. All rights reserved.en_US
dc.languageengen_US
dc.publisher0021-9614-
dc.relation.ispartofJournal of Chemical Thermodynamicsen_US
dc.sourceJournal Of Chemical Thermodynamics[ISSN 0021-9614],v. 39 (1), p. 128-141en_US
dc.subject.otherExcess-Enthalpiesen_US
dc.subject.otherParametersen_US
dc.titleThermodynamic study of (alkyl esters plus alpha,omega-alkyl dihalides) IV: H-m(E) and V-m(E) for 25 binary mixtures - {xC(u-1)H(2u-1)CO(2)CH(3) + (1-x)alpha,omega-BrCH2(CH2)(v-2)CH2Br}, where u=1 to 5, alpha=1 and v = omega=2 to 6en_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.jct.2006.05.004en_US
dc.identifier.scopus33846372250-
dc.identifier.isi000243740300017-
dcterms.isPartOfJournal Of Chemical Thermodynamics-
dcterms.sourceJournal Of Chemical Thermodynamics[ISSN 0021-9614],v. 39 (1), p. 128-141-
dc.contributor.authorscopusid7402623992-
dc.contributor.authorscopusid14619607000-
dc.contributor.authorscopusid15822921700-
dc.description.lastpage141en_US
dc.identifier.issue1-
dc.description.firstpage128en_US
dc.relation.volume39en_US
dc.investigacionIngeniería y Arquitecturaen_US
dc.type2Artículoen_US
dc.identifier.wosWOS:000243740300017-
dc.contributor.daisngid170099-
dc.contributor.daisngid4942350-
dc.contributor.daisngid4848449-
dc.contributor.daisngid1204148-
dc.identifier.investigatorRIDN-3335-2014-
dc.identifier.investigatorRIDH-9691-2015-
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:Ortega, J-
dc.contributor.wosstandardWOS:Navas, A-
dc.contributor.wosstandardWOS:Placido, J-
dc.date.coverdateEnero 2007en_US
dc.identifier.ulpgcen_US
dc.contributor.buulpgcBU-INGen_US
dc.description.jcr1,939
dc.description.jcrqQ1
dc.description.scieSCIE
item.grantfulltextnone-
item.fulltextSin texto completo-
crisitem.author.deptGIR IDeTIC: División de Ingeniería Térmica e Instrumentación-
crisitem.author.deptIU para el Desarrollo Tecnológico y la Innovación-
crisitem.author.deptDepartamento de Ingeniería de Procesos-
crisitem.author.orcid0000-0002-8304-2171-
crisitem.author.parentorgIU para el Desarrollo Tecnológico y la Innovación-
crisitem.author.fullNameOrtega Saavedra, Juan-
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