Darja Pečar (Author), Valter Doleček (Author)

Abstract

The densities of coenzyme Q10 in supercritical carbon dioxide were measured at 308.15, 313.15, 323.15 and 333.15 K and in the pressure range from 10 to 40 MPa with the vibrating tube densimeter. The reliability of the technique has been verified in our previous works and in the present work it was checked comparing our experimental densities of pure carbon dioxide with literature data. The partial molar volumes, isothermal compressibilities, isobaric thermal expansivities, internal pressures and cluster sizes were calculated from obtained densities.

Keywords

koenzim Q10;meritve gostote;parcialni molski volumni;izotermična stisljivost;razteznostni koeficient;notranji tlak;superkritični CO2;density measurements;partial molar volume;isothermal compressibility;isobaric thermal expansivity;internal pressure;supercritical carbon dioxide;

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: 10643990 Link will open in a new window
ISSN: 0896-8446
Views: 1390
Downloads: 83
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Other data

Secondary language: English
Secondary keywords: koenzim Q10;meritve gostote;parcialni molski volumni;izotermična stisljivost;razteznostni koeficient;notranji tlak;superkritični CO2;
URN: URN:SI:UM:
Pages: str. 200-207
Volume: ǂVol. ǂ40
Issue: ǂiss. ǂ2
Chronology: Mar. 2007
DOI: 10.1016/j.supflu.2006.07.007
ID: 8718619