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Modeling of density and calculations of derived volumetric properties for n-hexane, toluene and dichloromethane at pressures 0.1-60 MPa and temperatures 288.15-413.15 K

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2015
3080.pdf (351.8Kb)
Authors
Ivaniš, Gorica
Tasić, Aleksandar Ž.
Radović, Ivona
Đorđević, Bojan D.
Šerbanović, Slobodan P.
Kijevčanin, Mirjana
article (publishedVersion)
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Abstract
Densities data of n-hexane, toluene and dichloromethane at temperatures 288.15-413.15 K and at pressures 0.1-60 MPa, determined in a previous article, were fitted to the modified Tait equation of state. The fitted temperature-pressure dependent density data were used to calculate the following derived properties: the isothermal compressibility, the isobaric thermal expansivity, the difference between specific heat capacity at constant pressure and at constant volume and the internal pressure, over the entire temperature and pressure intervals specified above. In order to assess the proposed modeling procedure, the obtained values for the isothermal compressibility and the isobaric thermal expansivity were compared with the corresponding literature data. The average absolute percentage deviations for the isothermal compressibility were for n-hexane 2.01-3.64 %, for toluene 0.64-2.48 % and for dichloromethane 1.81-3.20 %, and for the isobaric thermal expansivity, they were for n-hexane 1....31-4.17 %, for toluene 0.71-2.45 % and for dichloromethane 1.16-1.61 %. By comparing the obtained deviations values with those found in the literature, it could be concluded that the presented results agree well with the literature data.

Keywords:
high pressure / isobaric thermal expansivity / isothermal compressibility / n-hexane / toluene / dichloromethane
Source:
Journal of the Serbian Chemical Society, 2015, 80, 11, 1423-+
Publisher:
  • Srpsko hemijsko društvo, Beograd
Funding / projects:
  • info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172063/RS// (RS-172063)
  • Faculty of Technology and Metallurgy, University of Belgrade

DOI: 10.2298/JSC150318062I

ISSN: 0352-5139

WoS: 000366585800008

Scopus: 2-s2.0-84957568228
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URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3083
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  • Radovi istraživača / Researchers’ publications (TMF)
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Tehnološko-metalurški fakultet

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