Theory and complications involved in dipole moment measurements in slightly conductive polar solvents are discussed. Experimental results are presented for the following electrolytes in anhydrous acetic acid: LiCl, KCl, KBr, LiTs, KTs, CsTs, TlTs, R4NNO3, BHTs, Ts = p-toluenesulfonate; BH = p-toluidinium; R4N = tetra-isoamylammonium. Except for R4NNO3, the dipole moments indicate that solvation complexes are formed between the respective ion pairs and acetic acid molecules. Comparison of dipole moments of the solvation complexes with intrinsic dipole moments of the ion pairs yields information about the structure of the solvation complexes. © 1979, Walter de Gruyter. All rights reserved.