| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing an ionic liquid at low cost, and to provide the new ionic liquid producible by the method, presenting solution properties over a wide-range region, wide in electrochemically stable region, and useful as an electrolyte for electrical devices. SOLUTION: The method for producing the ionic liquid comprises carrying out a reaction between trimethylamine and a lower alkoxy lower alkyl chloride to obtain an ammonium chloride, which is then reacted with an acid of the formula: YA[ wherein, A is a hydrogen cation or alkali metal cation; Y is BF<SB>4</SB><SP>-</SP>, CF<SB>3</SB>SO<SB>3</SB><SP>-</SP>, CF<SB>3</SB>CO<SB>2</SB><SP>-</SP>, (C<SB>n</SB>F<SB>2n+1</SB>MO<SB>2</SB>)<SB>2</SB>N<SP>-</SP>, PF<SB>6</SB><SP>-</SP>, AsF<SB>6</SB><SP>-</SP>or SbF<SB>6</SB><SP>-</SP>, wherein n in (C<SB>n</SB>F<SB>2n+1</SB>MO<SB>2</SB>)<SB>2</SB>N<SP>-</SP>is 1 or 2; and M is independently S or C in two (C<SB>n</SB>F<SB>2n+1</SB>MO<SB>2</SB>) groups ] or its alkali metal salt. This ionic liquid is a lower alkoxy lower alkyl trimethylammonium one bearing Y as a pair of anions. The new ionic liquid thus obtained is represented by the general formula, being in a melt state at 50°C or lower. COPYRIGHT: (C)2006,JPO&NCIPI
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