METHOD FOR PRODUCING ORGANIC ONIUM SALT OF TETRAFLUOROALUMINATE

摘要

PROBLEM TO BE SOLVED: To provide a method for industrially producing in high yield an organic onium salt of tetrafluoroaluminate useful as one of various chemicals including electrolytes for electrochemical devices such as batteries and electrolytic capacitors. SOLUTION: The method for producing the organic onium salt of tetrafluoroaluminate (e.g. 1-ethyl-2,3-dimethylimidazolinium salt of tetrafluoroaluminate) comprises reacting an organic onium fluoride salt (e.g. 1-ethyl-2,3-dimethylimidazolinium fluoride salt) with an aluminum trifluoride compound (e.g. aluminum trifluoride trihydrate) in the presence of a chelating agent (e.g. ethylenediaminetetraacetic acid). COPYRIGHT: (C)2004,JPO