Solubility and Liquid Density of Binary Mixtures of n-Hexane or 1-Hexanol with Krypton, Sulfur Hexafluoride, or R143a

Jander JH, Piszko M, Kühl J, Rausch MH, Fröba AP (2023)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2023

Journal

Journal of Chemical and Engineering Data American Chemical Society

Book Volume: 68

Pages Range: 813–834

Journal Issue: 4

DOI: 10.1021/acs.jced.2c00727

Abstract

Within the present study, the solubility, phase behavior, and liquid density of binary systems consisting of n-hexane (C6H14) or 1-hexanol (C6H14O) and krypton (Kr), sulfur hexafluoride (SF6), or the refrigerant 1,1,1-trifluoroethane (R143a) are investigated at temperatures between 303 and 348 K and pressures up to 14 MPa. For this, the isochoric-saturation method featuring in-line density measurements of the saturated liquid phase is applied in combination with Raman spectroscopy. The latter is calibrated for the systems comprising SF6 and R143a with the experimentally measured solubility data to allow for the determination of the liquid-phase composition of these binary mixtures on other setups solely by the evaluation of Raman spectra. This is performed in this study on a second setup where the Raman spectra obtained especially in the SF6- and R143-rich regimes complement the characterization of the phase behavior. The solubility in C6H14O was found to be distinctly lower than in C6H14 for all gases. Furthermore, a liquid-liquid phase separation was observed for C6H14O/SF6 and C6H14O/R143a at nearly all investigated temperatures. These and further results are discussed in connection with the molecular properties of the mixture components.

Authors with CRIS profile

Julius Jander Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Maximilian Piszko Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Julius Kühl Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Michael Rausch Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Andreas Paul Fröba Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP)

Additional Organisation(s)

Erlangen Graduate School in Advanced Optical Technologies

Related research project(s)

Characterization of molecular diffusion in liquids with dissolved gases July 1, 2019 - June 30, 2023

How to cite

APA:

Jander, J.H., Piszko, M., Kühl, J., Rausch, M.H., & Fröba, A.P. (2023). Solubility and Liquid Density of Binary Mixtures of n-Hexane or 1-Hexanol with Krypton, Sulfur Hexafluoride, or R143a. Journal of Chemical and Engineering Data, 68(4), 813–834. https://dx.doi.org/10.1021/acs.jced.2c00727

MLA:

Jander, Julius Hans, et al. "Solubility and Liquid Density of Binary Mixtures of n-Hexane or 1-Hexanol with Krypton, Sulfur Hexafluoride, or R143a." Journal of Chemical and Engineering Data 68.4 (2023): 813–834.

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