Abstract
Experiments have been performed to investigate whether the common acids formed by water can be replaced by solutions of proton donors in nonaqueous solvents for dissolving metals and oxides. Hydrogen chloride as proton donor and nitrogen compounds as solvents have been examined in particular. It has been found that molten hydrochlorides of some aromatic amines dissolve metals and oxides readily and at convenient temperatures. The advantages to be gained in analytical and radiochemistry by the use of such compounds instead of acids formed by water are discussed.

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