Abstract
New experimental results are presented for the solubility and the partial molar volume of carbon dioxide in an aqueous solution of phenol and sodium chloride at temperatures of about (314, 354 and 395)K and pressures up to about 10MPa. The composition of the solvent – expressed as molality in water – is about 0.5mol/(kg H2O) for phenol and 1mol/(kg H2O) for sodium chloride. The experimental work is a continuation of investigations on the influence of organic components and strong electrolytes on the solubility of carbon dioxide in water. It extends a data base for developing and testing thermodynamic models to describe the solubility of gases in salt-free and salt-containing aqueous solvents mixed with organic compounds. The experimental results are compared to predictions and correlations from a thermodynamic model which combines a model for the solubility of CO2 in aqueous solutions of NaCl with a model for the solubility of CO2 in aqueous solutions of phenol. The prediction results reveal a reasonable agreement. As in a previous investigation – with N,N-dimethylformamide instead of phenol as the organic solvent component – adjusting a ternary parameter for interactions between the three solutes (i.e. CO2, NaCl, and phenol) results in a correlation that allows to describe the new experimental data within experimental uncertainty.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
