Nasirzadeh, Karamat and Neueder, Roland (2004) Measurements and correlation of osmotic coefficients and evaluation of vapor pressure for solutions of KCH3COO and NACH(3)COO in methanol at 25 degrees C. ACTA CHIMICA SLOVENICA, 51 (1). pp. 117-126. ISSN 1318-0207, 1580-3155
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The osmotic coefficients of potassium acetate and sodium acetate in methanol have been measured by the isopiestic method at 25 degreesC. Sodium iodide was used as isopiestic standard for the calculation of osmotic coefficients. The molality ranges covered in this study correspond to about 0.17-2.51 mol.kg(-1) for potassium acetate and 0.25-1.76 mol . kg(-1) for sodium acetate. The system of equations of Pitzer - Mayorga and MSA-NRTL were used to fit osmotic coefficients. The parameters from the fit were used to calculate the vapor pressures. The osmotic coefficient data are successfully correlated with these models, which provide reliable predictions of vapor pressures.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NONAQUEOUS ELECTROLYTE-SOLUTIONS; SALT; MODEL; THERMODYNAMICS; ACETONITRILE; EQUILIBRIA; 2-PROPANOL; SOLVENTS; SYSTEMS; ETHANOL; osmotic coefficient; isopiestic; methanol; models |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Jul 2021 08:18 |
| Last Modified: | 23 Jul 2021 08:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38089 |
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