The lon-sdvent Interaction of several tetraalkylammonium (R4N+) Ions, alkali metal cations, and anions In sulfolane has been examined from the conductance data. The A" vs. CV2 plots are almost linear for all the salts studied, Indicating their complete dissociation In solution. The. limiting Ionic equivalent conductivities of these Ions at different temperatures have been obtained assuming i?-Bu4N+ and BPh4~i ons to have equal mobilities. The variation of the Walden product with temperature reveals that R4N+ cations and the common Inorganic anions do not appear to Interact appreciably with the solvent whereas Na+, K+, Rb+, and Cs+ Ions are significantly solvated.