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Viscosity measurements of diisodecyl phthalate using a vibrating wire Instrument operated In free decay mode: comparison with results obtained with the forced mode of operation

2009Journal article Restricted access
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dc.contributor.authorOliveira, Carla Padrel de
dc.contributor.authorCaetano, Fernando J. P.
dc.contributor.authorFareleira, João M. N. A.
dc.contributor.authorWakeham, William A.
dc.date.accessioned2012-03-16T10:45:48Z
dc.date.available2012-03-16T10:45:48Z
dc.date.issued2009
dc.description.abstractRecently, several authors described measurements of liquid viscosities higher than 100 mPa · s, using the vibrating wire technique in the forced oscillation mode of operation. The use of a vibrating wire instrument to measure increasingly higher viscosities poses experimental difficulties due to the consequent decrease of the quality factor of the resonance. This problem affects both modes of operation: in the steady-state, forced oscillation mode, there is a loss of definition of the resonance curve, and in the transient, free decay mode, there is an increase of the decrement of the sinusoidal time response of the vibrating wire. In the present work, we have measured the viscosity of diisodecyl phthalate (DIDP) at 0.1 MPa with a vibrating wire of nominal radius of 190 μm using the free decay mode of operation. The measurements covered a range of viscosities from (64 to 265) mPa · s. The results agreed with those we have obtained with a vibrating wire instrument operated in the forced mode and with the literature data, within the estimated experimental uncertainty (k ) 2) of ( 2 %. The comparisons indicate that the use of the free decay mode of operation does not necessarily imply a significant increase of uncertainty of the viscosity results at moderately high viscosities.por
dc.identifier.citationOliveira, Carla Padrel de [et al.] - Viscosity measurements of diisodecyl phthalate using a vibrating wire Instrument operated In free decay mode: comparison with results obtained with the forced mode of operation. "Journal Chemical and Engineering Data" [Em linha]. ISSN 0021-9568 (Print) 1520-5134 (Online). Vol. 54, nº 9 (2009), p. 2562-2568por
dc.identifier.issn0021-9568 (Print)
dc.identifier.issn1520-5134 (Online)
dc.identifier.urihttp://hdl.handle.net/10400.2/2080
dc.language.isoengpor
dc.relation.publisherversionDOI:10.1021/je900113fpor
dc.subjectViscositypor
dc.titleViscosity measurements of diisodecyl phthalate using a vibrating wire Instrument operated In free decay mode: comparison with results obtained with the forced mode of operationpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2568por
oaire.citation.startPage2562por
oaire.citation.titleJournal Chemical and Engineering Datapor
person.familyNameOliveira
person.familyNameCaetano
person.familyNameFareleira
person.givenNameCarla Padrel de
person.givenNameFernando J. P.
person.givenNameJoão
person.identifier.ciencia-id7015-A6A4-C28D
person.identifier.ciencia-idDE17-708E-317F
person.identifier.ciencia-id8E1B-F54C-8ABD
person.identifier.orcid0000-0002-6419-7100
person.identifier.orcid0000-0002-6821-1694
person.identifier.orcid0000-0002-8442-9386
person.identifier.ridF-9882-2014
person.identifier.ridH-8325-2012
person.identifier.scopus-author-id25226689000
person.identifier.scopus-author-id7004474824
person.identifier.scopus-author-id6603840268
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationb9cd96f1-268e-440b-8240-2db65c6f528e
relation.isAuthorOfPublicationf36ab422-62f8-4432-965c-73e36b0d25a2
relation.isAuthorOfPublication22e737b9-e5ab-460d-9200-5d088c622c08
relation.isAuthorOfPublication.latestForDiscoveryf36ab422-62f8-4432-965c-73e36b0d25a2

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