Determination of viscosity, density and interfacial tension of the carbon dioxide–isopropanol, argon–isopropanol, sulphur hexafluoride–isopropanol binary systems at 313.15 K and 333.15 K and at elevated pressuresBorjan, Dragana (Avtor) Gračnar, Maja (Avtor) Knez, Željko (Avtor) Knez Marevci, Maša (Avtor) viscosityinterfacial tensioncarbon dioxideargonsuplhur hexafluorideisopropanolViscosity, density, and interfacial tension of three binary systems (carbon dioxide–isopropanol, argon–isopropanol, and sulphur hexafluoride–isopropanol) were measured at temperatures of 313.15 K and 333.15 K and at pressures up to 100 bar for carbon dioxide, and for argon and sulphur hexafluoride up to 500 bar. A vibrating tube densimeter method has been used for density measurements and a variable-volume high-pressure optical view cell with some modifications for the other measurements. The results showed that pressure does not have a high impact on viscosity. Density is found to be a linear function of pressure and temperature and the densities of the investigated binary systems increase with pressure and decrease with temperature. Interfacial tension decreased with the elevated pressure at a constant temperature for all the investigated systems. Accurate prediction of thermodynamic and mass transfer data is fundamental in various engineering and industrial operations to design processes with a higher yield of targeted compounds.MDPI AG20222023-08-17 15:06:14Znanstveno delo85073UDK: 66.02COBISS_ID: 128184579DOI: 10.3390/pr10112275ISSN pri članku: 2227-9717sl© 2022 by the authors