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dc.date.accessioned 2010-04-07T18:18:55Z
dc.date.available 2010-04-07T03:00:00Z
dc.date.issued 2010 es
dc.identifier.uri http://hdl.handle.net/10915/7909
dc.description.abstract The binary solvent system ethanol + ethyl acetate is widely used in the pharmaceutical sciences as a versatile model for studying the solubility of drugs. In this context, the excess molar volumes and the partial molar volumes of components were investigated from density measurements on the entire range of mass fractions, for this system at 293.15 K, 298.15 K, 303.15 K, 308.15 K, and 313.15 K. The excess molar volumes were fitted by Redlich-Kister equation by using third degree polynomials and compared with those reported in the literature for other solvent systems. The system tested exhibited positive excess volumes (up to 0.18 cm3 mol-1 at 313.15 K), probably due to weak interactions, like dispersion forces, between unlike molecules or, some differences in the molar volumes of pure components. The effect of temperature on the different volumetric properties studied was also analyzed. es
dc.format.extent p. 306-312 es
dc.language en es
dc.title Study of some volumetric properties of the pharmaceutical model solvent system ethanol + ethyl acetate at several temperatures es
dc.type Articulo es
sedici.identifier.uri http://www.latamjpharm.org/resumenes/29/2/LAJOP_29_2_2_9.pdf es
sedici.creator.person Ruidiaz, Miller A. es
sedici.creator.person Vargas, Edgar F. es
sedici.creator.person Martínez, Fleming es
sedici.subject.materias Farmacia es
sedici.subject.descriptores Farmacología es
sedici.subject.descriptores Solubilidad es
sedici.subject.descriptores Etanol es
sedici.subject.keyword binary liquid mixtures; ethanol; ethyl acetate; excess volumes; partial volumes es
sedici.description.fulltext false es
mods.originInfo.place Colegio de Farmacéuticos de la Provincia de Buenos Aires es
sedici.subtype Comunicacion es
sedici2003.identifier ARG-FARM-ART-0000001395 es
sedici.relation.journalTitle Latin American Journal of Pharmacy es


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