Autoprotolysis in water/methanol/NaCl ternary systems
| Autor: | Farajtabar Ali, Naderi Fereshteh, Gharib Farrokh |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Journal of the Serbian Chemical Society, Vol 78, Iss 10, Pp 1561-1567 (2013) |
| Druh dokumentu: | article |
| ISSN: | 0352-5139 1820-7421 |
| DOI: | 10.2298/JSC130104039F |
| Popis: | A potentiometric method was used to determine the autoprotolysis constant for aqueous solutions containing 0, 20 and 40 weight percent of methanol in wide range of NaCl concentration at 25°C. Ionic strength was ranged between 0.25 and 2.00 mol L-1 by intervals of 0.25 units. Osmotic and activity coefficient of mixed solvents were calculated as a function of ionic strength. Dependence on ionic strength was analyzed by using the original Specific ion Interaction Theory. The specific ion interaction parameters were extracted associated with the thermodynamic autoprotolysis constant. Results indicate that interaction between ions increases with the increasing of the methanol content in mixture. |
| Databáze: | Directory of Open Access Journals |
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