Conductivity studies of 1:1 electrolytes in water + methanol mixtures at 298.15 K
Agnieszka Boruń, Anna Wypych-Stasiewicz
Abstract
The electrical conductivities of sodium iodide (NaI), potassium iodide (KI), potassium chloride (KCl), sodium bromide (NaBr), lithium nitrate (LiNO 3 ), potassium nitrate (KNO 3 ), silver nitrate (AgNO 3 ), potassium perchlorate (KClO 4 ), sodium tetraphenylborate (NaBPh 4 ), tetraethylammonium iodide (Et 4 NI) and tetra-n-butylammonium iodide (Bu 4 NI) in mixtures of methanol with water have been measured at 298.15 K. The obtained results were analyzed using the Fuoss–Justice equation and the low concentration chemical Model (lcCM). The limiting ionic conductances λ o have been determined using the Fuoss–Hirsch assumption. The dependencies of the limiting molar conductances Λ o and Walden products Λ o η versus mixed solvent composition have been discussed.