Liquid Viscosity and Interfacial Tension of Binary Mixtures of n-Pentane, n-Decane, n-Hexadecane, or Squalane with Dissolved Carbon Dioxide or Propane by Surface Light Scattering

Lorig F, Zhai Z, Hewa Kankanamge CJK, Martinez Gonzalez PS, Richter M, Koller TM, Klein T, Fröba AP (2025)

Publication Type: Journal article

Publication year: 2025

Journal

Journal of Chemical and Engineering Data American Chemical Society

Book Volume: 70

Pages Range: 4582-4596

Journal Issue: 11

DOI: 10.1021/acs.jced.5c00502

Abstract

The present study investigates the influence of dissolved gases on the liquid viscosity ηLand interfacial tension σ of linear and branched alkanes under saturated conditions by using surface light scattering (SLS). Five binary mixtures consisting of n-pentane, n-decane, n-hexadecane, or 2,6,10,15,19,23-hexamethyltetracosane (squalane) with dissolved propane or carbon dioxide are studied at temperatures T between 255.7 and 423.15 K, pressures p up to 7.8 MPa, and solute amount fractions up to 0.79. Using SLS, ηLand σ were determined with an average expanded experimental uncertainty (coverage factor k = 2) of 2.0%. Polarization-difference Raman spectroscopy was simultaneously applied to SLS experiments to determine the liquid-phase composition. The influence of the dissolved gas is discussed by comparing the thermophysical properties of the mixtures to those of the pure solvents. It could be observed that the molecular characteristics of the solute have a minimal influence on ηLof the mixture, which is primarily determined by the solvent’s characteristics. In contrast, the molecular characteristics of the solvent and solute strongly influence σ. Overall, the results of this study contribute to expanding the database for ηLand σ for binary mixtures, which can be considered surrogate mixtures for refrigeration oil–refrigerant systems.

Authors with CRIS profile

Fabian Lorig Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Ziwen Zhai Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Chathura Jayan Kankanamge Hewa Kankanamge Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Pedro Santiago Martinez Gonzalez Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Thomas Manfred Koller Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Tobias Klein Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Andreas Paul Fröba Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP)

Involved external institutions

Gottfried Wilhelm Leibniz Universität Hannover DE Germany (DE)

How to cite

APA:

Lorig, F., Zhai, Z., Hewa Kankanamge, C.J.K., Martinez Gonzalez, P.S., Richter, M., Koller, T.M.,... Fröba, A.P. (2025). Liquid Viscosity and Interfacial Tension of Binary Mixtures of n-Pentane, n-Decane, n-Hexadecane, or Squalane with Dissolved Carbon Dioxide or Propane by Surface Light Scattering. Journal of Chemical and Engineering Data, 70(11), 4582-4596. https://doi.org/10.1021/acs.jced.5c00502

MLA:

Lorig, Fabian, et al. "Liquid Viscosity and Interfacial Tension of Binary Mixtures of n-Pentane, n-Decane, n-Hexadecane, or Squalane with Dissolved Carbon Dioxide or Propane by Surface Light Scattering." Journal of Chemical and Engineering Data 70.11 (2025): 4582-4596.

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