Please use this identifier to cite or link to this item: https://hdl.handle.net/10321/1121
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dc.contributor.authorBahadur, Indra-
dc.contributor.authorDeenadayalu, Nirmala-
dc.contributor.authorNaidoo, Paramespri-
dc.contributor.authorRamjugernath, Deresh-
dc.contributor.authorSingh, Sangeeta-
dc.date.accessioned2014-08-11T11:39:34Z-
dc.date.available2014-08-11T11:39:34Z-
dc.date.issued2014-06-30-
dc.identifier.citationBahadur, I.; Singh, S.; Deenadayalu, N.; Naidoo, P. and Ramjugernath, D.. 2014. Influence of alkyl group and temperature on thermophysical properties of carboxylic acid and their binary mixtures. Thermochimica Acta. 590 151-159en_US
dc.identifier.issn0040-6031-
dc.identifier.urihttp://hdl.handle.net/10321/1121-
dc.description.abstractn this work, volumetric, acoustic and refractive index methods have been used to study the interactions between carboxylic acids mixtures as a function of temperature and concentration. The density (r), sound velocity (u), refractive index (n) of butanoic acid, pentanoic acid and heptanoic acid and their binary systems (butanoic or heptanoic acid + pentanoic acid) have been measured at 293.15, 298.15, 303.15, 308.15 and 313.15 K and at p = 0.1 MPa. The Lorentz–Lorenz approximation and sound velocity mixing rules were used to test the accuracy of the experimental data. The derived properties such as excess molar volumes, VEm, isentropic compressibilities, ks, excess isentropic compressibilities, ksE, and deviation in refractive indices, Dn, were also calculated. The Redlich–Kister polynomial equation was used to fit the excess/deviation properties. These results are useful for describing the intermolecular interactions that exist between the components in mixtures. This work also tests various sound velocity mixing rules to calculate the sound velocity of the binary mixture from pure component data, as well as examine the use of the Lorentz–Lorenz approximation to predict density from refractive index and vice versa.en_US
dc.format.extent9 pen_US
dc.language.isoenen_US
dc.publisherElsevier B.V.en_US
dc.relation.ispartofThermochimica acta (Print)-
dc.subjectDensityen_US
dc.subjectSound velocityen_US
dc.subjectRefractive indexen_US
dc.subjectCarboxylic aciden_US
dc.subjectSound velocity mixing rulesen_US
dc.subjectLorentz–Lorenz approximationen_US
dc.titleInfluence of alkyl group and temperature on thermophysical properties of carboxylic acid and their binary mixturesen_US
dc.typeArticleen_US
dc.dut-rims.pubnumDUT-004194en_US
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.languageiso639-1en-
item.openairetypeArticle-
item.grantfulltextopen-
item.cerifentitytypePublications-
Appears in Collections:Research Publications (Applied Sciences)
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