Darja Pečar (Author), Valter Doleček (Author)

Abstract

The densities of ethanol and ethanol-water mixtures were measured with a vibrating tube densimeter at 25.0, 50.0 and 75.0°C in the pressure range from 0.10 to 40.00 MPa. Densities were correlated using an empirical model. Partial molar volumes, excess molar volumes, isothermal compressibilities, cubic expansion coefficients and internal pressures were calculated from obtained densities. This study reports the dependence of densities, partial molar volumes, excess molar volumes, isothermal compressibilities, cubic expansion coefficients and internal pressures on composition, temperature and pressure.

Keywords

etanol;vodne raztopine etanola;meritve gostote;gostomer z nihajočo U cevko;parcialni molski volumni;izotermična stisljivost;razteznostni koeficient;kubični ekspanzijski koeficient;notranji tlak;ethanol;ethanol-water mixtures;density measurements;vibrating U tube densimeter;partial molar volumes;isothermal compressibility;isobaric expansibility;cubic expansion coefficient;internal pressure;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FKKT - Faculty of Chemistry and Chemical Engineering
UDC: 541.25
COBISS: 9524758 Link will open in a new window
ISSN: 0378-3812
Views: 1978
Downloads: 80
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Other data

Secondary language: English
Secondary keywords: etanol;vodne raztopine etanola;meritve gostote;gostomer z nihajočo U cevko;parcialni molski volumni;izotermična stisljivost;razteznostni koeficient;kubični ekspanzijski koeficient;notranji tlak;
URN: URN:SI:UM:
Pages: str. 36-44
Volume: ǂVol. ǂ230
Issue: ǂiss. ǂ1/2
Chronology: March 2005
ID: 8718286