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Viscosity and density measurements on liquid n-heptadecane at high pressures

2022-01-13Journal article Restricted access
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dc.contributor.authorSequeira, Maria Carolina
dc.contributor.authorAvelino, Helena Maria Da Nóbrega Teixeira
dc.contributor.authorCaetano, Fernando J. P.
dc.contributor.authorFareleira, João
dc.date.accessioned2022-01-13T15:35:25Z
dc.date.available2022-01-13T15:35:25Z
dc.date.issued2022-01-13
dc.description.abstractThis article reports novel measurements of the viscosity, eta, of liquid n-heptadecane at pressures up to 70 MPa, along six isotherms between 303 and 358 K. The experiments were carried out using a vibrating wire viscometer operated in the forced mode. The 303 and 313 K isotherms have a restricted range of pressures to avoid eventual solidification. The present measurements have an uncertainty less than U(eta) = 0.015.eta with a confidence level of 0.95. Complementary measurements of the density, rho, were performed with the same ranges of temperature and pressure, using a DMA HP Anton Paar U-tube densimeter, with a DMA 5000 instrument as a reading unit. The overall maximum uncertainty is U(rho) = 0.002.rho with a confidence level of 0.95. The article provides a correlation of the viscosity of compressed liquid n-heptadecane with the molar volume, constructed by means of a scheme based on a modified hard-sphere theory, which describes the experimental data within ca. 1%. A program is provided in the Supporting Information to promptly perform interpolation of the viscosity as a function of temperature and pressure. The isothermal compressibility and the isobaric thermal expansivity were calculated from the density. Viscosity-pressure coefficients have also been determined from the viscosity.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSEQUEIRA, Maria C. M.; [et al] – Viscosity and density measurements on liquid n-heptadecane at high pressures. Journal of Chemical and Engineering Data. ISSN 0021-9568. Vol. 67, N.º 1 (2021), pp. 37-44.pt_PT
dc.identifier.doi10.1021/acs.jced.1c00674pt_PT
dc.identifier.eissn1520-5134
dc.identifier.issn0021-9568
dc.identifier.urihttp://hdl.handle.net/10400.21/14155
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Chemical Societypt_PT
dc.relationUID/QUI/00100/2019 - FCTpt_PT
dc.relation.publisherversionhttps://pubs.acs.org/doi/pdf/10.1021/acs.jced.1c00674pt_PT
dc.subjectn-heptadecanept_PT
dc.subjectViscositypt_PT
dc.subjectDensitypt_PT
dc.subjectHigh pressurespt_PT
dc.titleViscosity and density measurements on liquid n-heptadecane at high pressurespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F00100%2F2013/PT
oaire.citation.endPage44pt_PT
oaire.citation.issue1
oaire.citation.startPage37pt_PT
oaire.citation.titleJournal of Chemical and Engineering Datapt_PT
oaire.citation.volume67
oaire.fundingStream5876
person.familyNameMargarido Sequeira
person.familyNameAvelino
person.familyNameCaetano
person.familyNameFareleira
person.givenNameMaria Carolina
person.givenNameHelena Maria da Nóbrega Teixeira
person.givenNameFernando
person.givenNameJoão
person.identifier.ciencia-idFF16-CEAC-461C
person.identifier.ciencia-id9615-6337-5695
person.identifier.ciencia-idDE17-708E-317F
person.identifier.ciencia-id8E1B-F54C-8ABD
person.identifier.orcid0000-0002-9746-2281
person.identifier.orcid0000-0001-6516-2164
person.identifier.orcid0000-0002-6821-1694
person.identifier.orcid0000-0002-8442-9386
person.identifier.ridH-8325-2012
person.identifier.scopus-author-id14919229800
person.identifier.scopus-author-id7004474824
person.identifier.scopus-author-id6603840268
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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