Several new benzimidazolium chlorides were prepared by the reaction of I-substituted benzimidazole with chloromethylalkyl ethers or sulphides. Benzimidazolium salts like iodides, tetrafluoroborates or perchlorates were obtained by a rapid and simple method.44 benzimidazolium salts were examined according to their antielectrostatic effect : the surface resistance, half decay time and the maximum voltage induced on polyethylene film were measured.