Gibbs free energies of transfer of the alkali-metal chlorides from water into t-butyl alcohol-water mixtures
| Autor: | Mahmoud M. Elsemongy, Ahmed A. Abdel-Khalek |
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| Rok vydání: | 1990 |
| Předmět: |
Molality
Electromotive force Inorganic chemistry Analytical chemistry Alcohol Condensed Matter Physics EMF measurement Alkali metal Gibbs free energy Metal symbols.namesake chemistry.chemical_compound Metal halides chemistry visual_art symbols visual_art.visual_art_medium Physical and Theoretical Chemistry Instrumentation |
| Zdroj: | Thermochimica Acta. 158:107-114 |
| ISSN: | 0040-6031 |
| DOI: | 10.1016/0040-6031(90)80058-7 |
| Popis: | The standard Gibbs free energies of transfer Δ G XXX t of the alkali-metal chlorides MCI from water (W) into 5–90 wt.% t -butyl alcohol (TBA)-water mixtures (S) were determined from EMF measurements performed on the double cell Ag, AgCl¦MCl( m ), S¦M(Hg)¦MCl( m ), W¦AgCl,Ag at 25 °C in the molality range of MCI from 0.001–0.100 mol kg −1 . The value of Δ G XXX t rises from Li + to Na + and falls from K + to Cs + , with a maximum between Na + and K + whose position depends on the solvent composition. The standard potentials of the cell M¦MCl( m ), S¦AgCl,Ag in these 10 TBA-water mixtures were also determined. The results have been interpreted and discussed in terms of solute-solvent interactions. |
| Databáze: | OpenAIRE |
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