Nasirzadeh, Karamat and Zafarani-Moattar, M. T. (2004) Isopiestic determination of osmotic coefficients and evaluation of vapor pressures for solutions of KI, NH4SCN and KSCN in methanol at 25 degrees C. JOURNAL OF MOLECULAR LIQUIDS, 111 (1-3). pp. 7-13. ISSN 0167-7322,
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The osmotic coefficients of potassium iodide, ammonium thiocyanate and potassium thiocyanate in methanol have been measured by the isopiestic method at 25 degreesC. Sodium iodide utilized as an isopiestic standard for the calculation of osmotic coefficients. The molality ranges covered in this study correspond to approximately 0.1-1 mol kg(-1) for KI, 0.2-4.4 mol kg(-1) for NH4SCN and 0.12-2.69 mol kg(-1) for KSCN. Experimental osmotic coefficient data are reliably represented by the Clegg-Pitzer and Pitzer-Mayorga models. The parameters from the fit were used to calculate the vapor pressures. The osmotic coefficient data are successfully correlated with this model, and the model demonstrates a reliable predication of vapor pressures. (C) 2003 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ELECTROLYTE-SOLUTIONS; SALT; THERMODYNAMICS; ETHANOL; EQUILIBRIA; 2-PROPANOL; SYSTEMS; LIBR; LICL; isopiestic; osmotic coefficient; vapor pressure |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Jul 2021 09:06 |
| Last Modified: | 21 Jul 2021 09:06 |
| URI: | https://pred.uni-regensburg.de/id/eprint/37749 |
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