Tetraalkylammonium iodides-water

The same precautions versus the presence of water traces have to be taken for the used electrolyte. In most of the experiments, the electrolyte concentration was 0.1 moLL". Potassium, lithium, sodium, and cesium iodides were used (because of their large solubilities). Tetraalkylammonium salts (puriss grade) were also used with purity >99.7%. It is required that all salts be dried by conventional methods before use [40]. 

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