For similarly substituted cations, the conduct- ances increase with decreasing formula weight of the cation BUXH~+ < EtNH3+ < MeNH3+ BuaNHL+ < Et2SH2+ < lIe2NH2+ BurN+ < PrrS < hIe3PhN- < Et?N+ < Me4Ni The following series of decreasing relative con- ductances of the symmetrically substituted quater- nary amr,ionium ions shows that the difference (in h units) between the conductances of the MelN+ and Et4Nf ions is very small in comparison to those for the ...