Direct determination of transference numbers of LiClO4 solutions in propylene carbonate and acetonitrile

Transference number measurements were determined by a direct method for LiClO4 solutions in propylene carbonate and acetonitrile at 25 °C. A comparison is reported between theoretical calculations of transference numbers using a model based on the Lee-Wheaton theory with values of conductometric parameters, and thermodynamic ion pairing constants determined from previously reported conductivity data.