STANDARD MOLAR ENTHALPIES OF FORMATION OF SOME CRYSTALLINE AMINE N-OXIDES

dc.creatorAIROLDI, C
dc.creatorGONCALVES, LJ
dc.date1992
dc.date37622
dc.date2014-12-16T11:31:45Z
dc.date2015-11-26T17:49:38Z
dc.date2014-12-16T11:31:45Z
dc.date2015-11-26T17:49:38Z
dc.date.accessioned2018-03-29T00:32:44Z
dc.date.available2018-03-29T00:32:44Z
dc.identifierThermochimica Acta. Elsevier Science Bv, v. 194, n. 259, n. 263, 1992.
dc.identifier0040-6031
dc.identifierWOS:A1992GZ61500025
dc.identifier10.1016/0040-6031(92)80025-R
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/74533
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/74533
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/74533
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1289443
dc.descriptionBased on the fact that N-oxide groups are kinetically reduced by titanium solution, a general thermochemical reaction, 3LO(c) + KX(c) = KXO3(c) + 3L(l); DELTA(r)H(m)-degrees (LO = N-oxide compound, L = amine, X = Cl, Br), was employed to determine through solution-reaction calorimetry the standard molar enthalpies of formation of crystalline ortho-, meta- and para-methylpyridine N-oxides, as well as those of triethyl- and tri-n-butylamine N-oxides, giving 10.3 +/- 0.8, 8.8 +/- 0.7, 12.9 +/- 0.9, 9.0 +/- 0.8 and 16.0 +/- 1.1 kJ mol-1, respectively. The advantage of this method is that it avoids combustion calorimetry in which it is difficult for this kind of substance to achieve complete combustion.
dc.description194
dc.description259
dc.description263
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationThermochimica Acta
dc.relationThermochim. Acta
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.titleSTANDARD MOLAR ENTHALPIES OF FORMATION OF SOME CRYSTALLINE AMINE N-OXIDES
dc.typeArtículos de revistas


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