AMBIENT-TEMPERATURE MOLTEN SALT, ELECTRODE, BATTERY, AGENT FOR PREVENTING CHARGE-UP, AND METHOD FOR OBSERVING SAMPLE

An obj ect of the present invention is to provide an ambient temperature molten salt having excellent electron conductivity in addition to ion conductivity. The present invention attains the object by providing an ambient temperature molten salt comprising a first imidazolium salt having a cationic segment represented by the general formula (1) and an anionic segment represented by MX 4 (where M is a transition metal and X is a halogen); and a second salt having a cationic segment as a monovalent cation and an anionic segment as a halogen.