an apparatus proposed for density measurements in compressed liquid regions at the pressures 0.1-60 mpa and the temperatures 288.15-413.15 k

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ID: 158865
2015
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Abstract
In this work an apparatus for density measurements in the compressed liquid regions was presented. This installation is based on the use of the DMA HP density measuring cell and the DMA 5000 densimeter (both instruments are products of Anton Paar, Gratz, Austria). Calibration of DMA HP cell was performed by applying the classical method where a vacuum, water and n-decane were recommended to be used as calibration fluids. To test the capabilities of the set-up, the densities of n-hexane, toluene and dichloromethane were measured in the temperature interval 288.15 to 413.15 K and the pressure range 0.1-60 MPa. The obtained results were compared with the corresponding values found in the literature. Depending on the literature selected for comparison (the temperature and pressure ranges available) the average absolute percentage deviations were: for n-hexane 0.03-0.10%; for toluene 0.04-0.08% and for dichloromethane 0.02-0.03%. A deeper insight into the results of this work shows that most of them are in a good agreement with the literature values; higher discrepancies are remarked in the vicinity of the ends of the temperature and pressure ranges. [Projekat Ministarstva nauke Republike Srbije, br. 172063]
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Authors ;Ivaniš Gorica R.;Tasić Aleksandar Ž.;Radović Ivona R.;Đorđević Bojan D.;Šerbanović Slobodan P.;Kijevčanin Mirjana Lj.
Journal meditsinskaia radiologiia
Year 2015
DOI
10.2298/JSC141127026I
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