| 摘要 |
<p>Provided is a method for producing a bis(perfluoroalkanesulfone)imide salt by adding water and an alkali metal hydroxide to a salt containing the bis(perfluoroalkanesulfone)imide salt represented by the general formula (RfSO2)2NM (in the formula, Rf is a perfluoroalkyl group having 1-4 carbon atoms, and M is Li, Na, or K) and, as an impurity, a fluorine-containing alkanesulfone imide salt, heating, and after decomposing the fluorine-containing alkanesulfone imide salt, collecting the bis(perfluoroalkanesulfone)imide salt.</p> |
