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Tris(2-ethylhexyl) trimellitate (TOTM) as a potential industrial reference fluid for viscosity at high temperatures and high pressures: New viscosity, density and surface tension measurements

2016-06-25Journal article Restricted access
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dc.contributor.authorDiogo, João C. F.
dc.contributor.authorAvelino, Helena Maria Da Nóbrega Teixeira
dc.contributor.authorCaetano, Fernando J. P.
dc.contributor.authorFareleira, Joao M. N. A.
dc.contributor.authorWakeham, William A.
dc.date.accessioned2016-06-28T14:37:11Z
dc.date.available2016-06-28T14:37:11Z
dc.date.issued2016-06-25
dc.description.abstractTris(2-ethylhexyl) trimellitate (TOTM) was recently suggested as a reference fluid for industrial use associated with high viscosity at elevated temperature and pressure. Viscosity and density data have already been published on one sample covering the temperature range (303-373) K and at pressures up to about 65 MPa. The viscosity covered a range from about (9 to 460) mPa s. In the present article we study several other characteristics of TOTM that must be available if it were to be adopted as a standard. First, we present values for the viscosity and density obtained with a different sample of TOTM to examine the important feature of consistency among different samples. Vibrating-wire viscosity measurements were performed at pressures from (5 to 100) MPa, along 6 isotherms between (303 and 373) K. Density measurements were carried out from (293 to 373) K up to 68 MPa, along 4 isotherms, using an Anton Paar DMA HP vibrating U-tube densimeter. Secondly, we report a study of the effect of water contamination on the viscosity of TOTM, performed using an Ubbelhode viscometer under atmospheric pressure. Finally, in order to support the use of TOTM as a reference liquid for the calibration of capillary viscometers, values of its surface tension, obtained by the pendant drop method, are provided. (C) 2016 Elsevier B.V. All rights reserved.pt_PT
dc.identifier.citationDIOGO, João C. F.; [et al.] - Tris(2-ethylhexyl) trimellitate (TOTM) as a potential industrial reference fluid for viscosity at high temperatures and high pressures: New viscosity, density and surface tension measurements. Fluid Phase Equilibria. ISSN 0378-3812. Vol. 418 (2016), pp. 192-197pt_PT
dc.identifier.doi10.1016/j.fluid.2016.01.012pt_PT
dc.identifier.issn0378-3812
dc.identifier.issn1879-0224
dc.identifier.urihttp://hdl.handle.net/10400.21/6249
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevier Science BVpt_PT
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0378381216300127pt_PT
dc.subjectTris(2-ethylhexyl) trimellitatept_PT
dc.subjectTOTMpt_PT
dc.subjectReferencept_PT
dc.subjectViscositypt_PT
dc.subjectHigh pressurept_PT
dc.titleTris(2-ethylhexyl) trimellitate (TOTM) as a potential industrial reference fluid for viscosity at high temperatures and high pressures: New viscosity, density and surface tension measurementspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PEst-OE%2FQUI%2FUI0100%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F66736%2F2009/PT
oaire.citation.endPage197pt_PT
oaire.citation.startPage192pt_PT
oaire.citation.volume418pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStreamSFRH
person.familyNameAvelino
person.givenNameHelena Maria da Nóbrega Teixeira
person.identifier.ciencia-id9615-6337-5695
person.identifier.orcid0000-0001-6516-2164
person.identifier.scopus-author-id14919229800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication9465688d-83d6-42bb-9ec3-c86eb756f458
relation.isAuthorOfPublication.latestForDiscovery9465688d-83d6-42bb-9ec3-c86eb756f458
relation.isProjectOfPublication61da5932-f392-4692-bb6c-df647fd26901
relation.isProjectOfPublicationb4ac401a-a248-45ea-b53d-972a9f5d62ce
relation.isProjectOfPublication.latestForDiscovery61da5932-f392-4692-bb6c-df647fd26901

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