Experimental determination of oxygen and nitrogen solubility in organic solvents up to 10 MPa at temperatures between 298 K and 398 K |
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| Institution: | 1. Laboratory for Thermophysical Properties LTP GmbH, Institute at the University of Oldenburg, FB9-TC, P.O. Box 2503, D-26111 Oldenburg, F.R.G.;2. University of Oldenburg, Department of Industrial Chemistry, P.O. Box 2503, D-26111 Oldenburg, F.R.G.;1. Universidad Andres Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas, Viña del Mar, Chile;2. Universidad Andres Bello, Escuela de Química y Farmacia, Viña del Mar, Chile;3. Universidad de Santiago de Chile, Facultad de Química y Biología, Departamento de Química de los Materiales, Chile;4. Universidad de Chile, Facultad de Ciencias Químicas y Farmacéuticas, Departamento de Química Orgánica y Fisicoquímica, Chile;5. Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Chile;2. Universitat Ramon Llull, Institut Quimic de Sarrià, Via Augusta, 390, E-08017 Barcelona, Spain;3. Universidad de Chile, Facultad de Ciencias Químicas y Farmacéuticas, Sergio Livingstone 1007, Santiago, Chile;4. Universidad Andres Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas, Quillota 980, Viña del Mar, Chile;5. Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Chile;1. Nikolaev Institute of Inorganic Chemistry, 3 Akad. Lavrentiev Ave., 630090 Novosibirsk, Russia;2. Novosibirsk State University, 2 Pirogova Str., 630090 Novosibirsk, Russia;3. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, 9 Akad. Lavrentiev Ave., 630090 Novosibirsk, Russia;4. Department of Chemistry, Faculty of Science, Hokkaido University, 060-0810 Sapporo, Japan;5. Kazan Federal University, Kremlyovskaya St., 18 Kazan 420008, Russia;1. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, B1906ZAA La Plata, Argentina;2. Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, United States;3. Radiation Research Building, University of Notre Dame, Notre Dame, IN 46556, United States |
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| Abstract: | Oxygen solubility in methanol, n -propanol, dibutyl ether, toluene, and octane, and nitrogen solubility in ethanol, n -propanol and 2-methyltetrahydrofuran was measured at pressures up to 10 MPa in the temperature range between 298 K and 398 K using the static synthetic method. The experimental results were used to extend the range of applicability of the Soave–Redlich–Kwong (PSRK) model for the prediction of air solubility in organic solvents and solvent mixtures by fitting the missing gas–solvent group interaction parameters. The required pressure range of gas solubility data for fitting the PSRK group interaction parameters was defined by analysing the significance of the data for the optimized parameters. The applied experimental method was analysed in detail since its use at higher pressures requires the consideration of the partial molar volumes of the dissolved gases when solving the mass and volume balance equations during the data treatment. |
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