Limiting ionic partial molar volumes of R4N+ and Br− in aqueous ethanol at 298.15 K

The densities of tetraalkyl ammonium bromide, R4NBr (R=CH3 through n-C4H9), NaBPh4 and NaBr solutions in (0, 10, 30, 50, 70, 90, and 100) mass% ethanol+water have been measured over the whole composition range at 298.15 K. From the densities, apparent and limiting partial molar volumes of the electrolytes and ions in these mixtures have been evaluated.