DFliyerz
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Molten potassium thiocyanate
I recently noticed that potassium thiocyanate has a very low melting point when anhydrous; 173.2C. I did some googling and couldn't come up with much,
so I wanted to ask here if electrolysis of molten potassium thiocyanate or perhaps sodium thiocyanate (MP 287C, but decomposes at 307C) could perhaps
result in the formation of the alkali metal.
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kmno4
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I also did some googling and in 2 minutes (changing keywords) found this: "Advances in Molten Salt Chemistry vol.3" and from it: R. E. Panzer and
M. J. Schaer, J. Electrochem. Soc. 112:1136 (1965).
Shortly: Na(K) reacts with SCN(-) forming S(2-) and CN(-) ions.
In another words, reaction:
Na(K)(+) +e → Na(K)
occurs at more negative potential than reaction:
SCN(-) + 2e → S(2-) + CN(-).
The picture explains everything.
Слава Україні !
Героям слава !
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DFliyerz
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So, it's not possible, or it is possible just under certain conditions?
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