Introduction to the Phrase âIonic Liquidsâ âT he Structure and Properties of Ionic Meltsâ was the title of a Faraday Society Discussion held in Liverpool in 1961; it dealt exclusively with molten inorganic salts.1 âIonic Liquidsâ was the title of Chapter 6 of the textbook Modern Electrochemistry ionic liquid are summarized in by Bockris and Reddy, published in 1970: it discussed liquids ranging from alkali silicates and halides to tetraalkylammonium salts.2 The modern era of ionic liquids stems from the work on alkylpyridinium