Method for producing organic onium tetrafluoroaluminate, electrolytic solution for electrolytic capacitor, and electrolytic capacitor using the same

摘要

PPROBLEM TO BE SOLVED: To provide a method for inexpensively and industrially producing an organic onium tetrafluoro aluminate, e.g. 1-ethyl-2,3-dimethylimidazolinium tetrafluoro aluminate. PSOLUTION: The organic onium tetrafluoro aluminate is obtained by reacting (i) hydrogen fluoride and/or hydrosilicofluoric acid, (ii) an organic onium salt and (iii) an aluminum compound (except aluminum trifluoride) and/or metallic aluminum. PCOPYRIGHT: (C)2004,JPO&NCIPI