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Bubble and dew-point measurement of mixtures of 1H,1H,2H-perfluoro-1-octene and 1H,1H,2H,2H-perfluoro-1-octanol in supercritical CO2.
- Source :
- New Journal of Chemistry; 4/21/2022, Vol. 46 Issue 15, p7271-7278, 8p
- Publication Year :
- 2022
-
Abstract
- In this article, solubility data are presented for the fluoro-monomer (meth)acrylate, which plays an important role as an organic solvent in several industrial processes. High-pressure phase equilibria for 1H,1H,2H-perfluoro-1-octene + supercritical CO<subscript>2</subscript> (PFOe + Sc-CO<subscript>2</subscript>), and 1H,1H,2H,2H-perfluoro-1-octanol + Sc-CO<subscript>2</subscript> (PFOl + Sc-CO<subscript>2</subscript>) models were assessed in a static device at different temperatures starting from 313.2 to 393.2 K and maximum pressure of about 17.22 MPa. Temperature–pressure (T–p) diagrams of the PFOe + Sc-CO<subscript>2</subscript> and PFOl + Sc-CO<subscript>2</subscript> systems show mixture-critical curves between the critical temperatures of CO<subscript>2</subscript> and PFOe or CO<subscript>2</subscript> and PFOl. The solubility of PFOe and PFOl in the two systems gradually increases with increasing temperature at constant pressure. The experimental curves for the PFOe + Sc-CO<subscript>2</subscript> and PFOl + Sc-CO<subscript>2</subscript> binary models show phase behavior of curve type-I. Correlations of experimental results for the PFOe + Sc-CO<subscript>2</subscript> and PFOl + Sc-CO<subscript>2</subscript> models are compared with the P–R EOS using mixing rules with two parameters (κ<subscript>ij</subscript>, η<subscript>ij</subscript>). The root mean squared deviation (RMSD) percentages (%) for the two systems using the optimum factors evaluated at 353.2 K were 2.19% for PFOl + Sc-CO<subscript>2</subscript> and 5.30% for PFOe + Sc-CO<subscript>2</subscript>. The RMSD (%) for the PFOl + Sc-CO<subscript>2</subscript> model evaluated by the alterable factor at each temperature was 2.78%. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 46
- Issue :
- 15
- Database :
- Complementary Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 156246045
- Full Text :
- https://doi.org/10.1039/d2nj00670g