Abstract
A systematic investigation of the Ag2SO4-Na2SO4 binary system which forms a complete solid solution in the entire compositional range reveals the mobility of Ag+ as well as Na+. This is concluded on the basis of the appearance of two overlapping semicircles in the complex impedance plane. Transport number measurements using Tubandt and dc polarisation methods support the mobility of both ions. Further, the maximum conductivity for 30 Ag2SO4-70 Na2SO4 is due to optimum percolating paths resulting from lattice expansion. The decrease in conductivity beyond this, is caused by the increased interaction of Ag+ and Na+.
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