Solvent Properties that Suit Ion Dissolution

In view of the requirements noted here, hydrocarbons are unsuitable as solvents for ions, although aromatic hydrocarbons do interact with electrolytes that themselves have aromatic or large aliphatic groups attached to an ionized atom or group 

Ions in Solution and Their Solvation, First Edition. Yizhak Marcus. 

In the following, the physical and chemical properties of such solvents that make them suitable for dissolving electrolytes and permit their ionic dissociation are presented and discussed. Properties of liquids not included in this limited list can be found in such compilations as [1-3]. Some of the solvents that are listed have low permittivities and are not particularly suited for the dissolution of electrolytes and their ionic dissociation, but have been employed for special purposes, such as in mixtures with water (e.g., 1,4-dioxane) or because of special donor properties (such as tetrahydrothiophene). Another solvent listed, ammonia, is not liquid at ambient conditions, but becomes so at low temperatures and moderately high pressures, and its ion solvation properties have been extensively studied. 

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