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Capillary viscometry for routine measurements of newtonian liquids

datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.authorSequeira, Maria Carolina
dc.contributor.authorCaetano, Fernando J. P.
dc.contributor.authorFareleira, João M. N. A.
dc.date.accessioned2025-01-28T11:42:09Z
dc.date.available2025-01-28T11:42:09Z
dc.date.issued2024-07-30
dc.description.abstractViscosity is a thermophysical property of paramount importance, being essential for many scientific and industrial applications. The most common instruments for its measurement are glass capillary viscometers. Therefore, the use of capillary viscometers is widespread both in industry and in research. The range of viscosities of interest range from lower than that of water to several orders of magnitude higher values, the measurement of which requires different capillary viscometers. Most of the practical applications concern routine instruments, mainly for quality control. One main issue for the utilization of capillary viscometers relates to the need for their calibration, assuring its traceability to the water primary viscosity standard, to certify its worldwide validity. The present paper focuses on capillary instruments dedicated to perform viscosity measurements on Newtonian organic liquids at atmospheric pressure, as it is assumed that is the most widespread type of application for these viscometers. Capillary viscometry has a completely well-defined working equation, namely, the Hagen–Poiseuille equation. However, the practical performance of the measuring instruments deviates from that working equation. Most of those deviations are currently considered by many users. However, some of those deviations have not reached that status yet, like those concerning the effects due to the surface tension of the sample on the measurements. All these aspects are summarized and analyzed in the present article, together with a brief general description of the most common types of capillary viscometers, namely, the Ostwald and the constant-level or Ubbelohde instruments.eng
dc.identifier.citationSequeira, M.C.M., Caetano, F.J.P. & Fareleira, J.M.N.A. Capillary Viscometry for Routine Measurements of Newtonian Liquids. Int J Thermophys 45, 118 (2024). https://doi.org/10.1007/s10765-024-03410-7
dc.identifier.doi10.1007/s10765-024-03410-7
dc.identifier.urihttp://hdl.handle.net/10400.2/19416
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Nature
dc.relationFundação para a Ciência e a Tecnologia (FCT) - UIDB/00100/2020 (https://doi.org/10.54499/UIDB/00100/2020)
dc.relationFundação para a Ciência e a Tecnologia (FCT) - UIDB/00313/2020 (https://doi.org/10.54499/UIDB/00313/2020)
dc.relationFundação para a Ciência e a Tecnologia (FCT) - UIDP/00100/2020 (https://doi.org/10.54499/UIDP/00100/2020)
dc.relationFundação para a Ciência e a Tecnologia (FCT) - UI/BD/152239/2021
dc.relation.hasversionhttps://doi.org/10.1007/s10765-024-03410-7
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCapillary Viscometry
dc.subjectGlass capillary viscometers
dc.subjectNewtonian liquids
dc.subjectUbbelohde
dc.titleCapillary viscometry for routine measurements of newtonian liquidseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage18
oaire.citation.issue118
oaire.citation.startPage1
oaire.citation.titleInternational Journal of Thermophysics
oaire.citation.volume45
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameSequeira
person.familyNameCaetano
person.familyNameFareleira
person.givenNameMaria Carolina
person.givenNameFernando J. P.
person.givenNameJoão
person.identifier.ciencia-idFF16-CEAC-461C
person.identifier.ciencia-idDE17-708E-317F
person.identifier.ciencia-id8E1B-F54C-8ABD
person.identifier.orcid0000-0002-9746-2281
person.identifier.orcid0000-0002-6821-1694
person.identifier.orcid0000-0002-8442-9386
person.identifier.ridH-8325-2012
person.identifier.scopus-author-id57209026585
person.identifier.scopus-author-id7004474824
person.identifier.scopus-author-id6603840268
relation.isAuthorOfPublication659a41ab-b9f0-4e51-a4ea-2558038f6148
relation.isAuthorOfPublicationf36ab422-62f8-4432-965c-73e36b0d25a2
relation.isAuthorOfPublication22e737b9-e5ab-460d-9200-5d088c622c08
relation.isAuthorOfPublication.latestForDiscovery659a41ab-b9f0-4e51-a4ea-2558038f6148

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