The limiting molar conductances and association constants for NaBPh4 have been evaluated in acentonitrile–toluene mixtures at 15, 25, and 35 °C. Experimental data have been analysed by the Lee–Wheaton conductance equation. The thermodynamic parameters of the non-coulombic interaction have been evaluated. Keywords: conductance, association constant, Lee–Wheaton equation, acetonitrile–toulene.
