Gibbs energy of transfer and conductivity properties of NaI solutions in mixtures of water with butan-1-ol at 298.15 K, and some physicochemical properties of mixed solvent

✍ Scribed by Jerry Gregorowicz; Adam Bald; Adam Szejgis; Agnieszka Chmielewska

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 511 KB
• Volume: 84
• Category: Article
• ISSN: 0167-7322
• DOI: 10.1016/s0167-7322(99)00174-9

✦ Synopsis

The electrical conductivity of NaI solutions and the emf of the cell: glass electrode (Na)lNaII AgI, mg in mixtures of water with butan-l-oi in the range 0-1 mol% and 60-100 mol% have been measured at 298.15 K. The values of limiting molar conductance (A0), association constants (KA), and the parameter of distance of ions (R) were obtained with the Fuoss-Justice equation. From the conductivity data obtained, the values of the Walden products (A0rl) were also calculated. The values of the Gibbs energy of transfer (AtG °) of NaI from water to mixtures of water with butan-l-ol mixtures were obtained from the emf data. The dependencies of limiting molar conductance (A0), Walden products (A0rl), association constants (KA) and Gibbs energy of transfer (AtG °) of NaI versus the mixed solvent composition have been briefly discussed and compared with existing literature data. Densities (p) and relative electric permittivities (e) in temperature range 288.15 K-308.15 K as well as viscosities (Vl) of the mixed solvent at 298.15 K have also been measured.