Oxygenless melt

Peculiarities of oxygen-containing and oxygenless melts as media for oxoacidity... 

Pure oxygenless melts contain no oxide ions in any form, and because of it, pure melts carmot serve as donors of 0 . The melts, which are solvents of the second kind, can affect acid-base interaction in two manners by fixation of oxide ions entering melt and by solvation of conjugated acid or base. These ionic solvents are used in practice for research and applied purposes, however, they contain admixtures of oxide ion donors, which are formed in the melt from initial admixtures of oxoanions such as SO4, CO3, OH . The second way of the appearance of oxide ion admixtures in molten media is characteristic of the melts based on alkali metal halides the process of high-temperature hydrolysis of the halide melts results in formation of hydroxide and, after their dissociation, of oxide ions ... 

The presence of the oxide-containing admixtures in oxygenless melts inevitably leads to their dissociation with formation of oxide ions and conjugated gas-acid, as admbc-tures of these processes, which are described in ionic form by the following equations ... 

Features of oxygenless melts as the solvents of the second kind are as follows ... 

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