Gibbs energy of transfer and conductivity properties of NaBr solutions in mixtures of water with propan-1-ol at 298.15 K

✍ Scribed by Jerzy Gregorowicz; Adam Bald; Adam Szejgis; Malgorzata Żurada

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 514 KB
• Volume: 79
• Category: Article
• ISSN: 0167-7322
• DOI: 10.1016/s0167-7322(98)00110-x

✦ Synopsis

The electrical conductivity of NaBr solutions and the emf of the cell: glass electrode (Na) I NaBr I AgBr, Ag in the mixtures of water with propan-l-ol in the range 0-80 tool% have been measured at 298.15 K. The values of limiting molar conductance (A0), association constants (KA), and parameter of distance of ions (K) were obtained with the Fuoss-Justice equation. From the conductivity data obtained, the values of the Walden products (Ao~l) were also calculated. The values of the Gibbs energy of transfer (AtG °) of NaBr from water to mixtures of water with propan-l-ol mixtures were obtained from the emf data. The dependencies of limiting molar conductance (Ao), Walden products (Ao11) , association constants (KA) and Gibbs energy of transfer (AtG °) of NaBr versus the mixed solvent composition have been discussed. The obtained results haxe been compared with earlier findings for sodium chloride and iodide.