Romix
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Potassium manganate
At what temperature reaction of potassium hydroxide, manganese dioxide and oxygen begins?
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blogfast25
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For all oxidation states of Mn, please consult the relevant 'sticky' thread in 'Chemistry in general'.
http://www.sciencemadness.org/talk/viewthread.php?tid=8480
[Edited on 29-6-2015 by blogfast25]
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AJKOER
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Potassium manganate is an intermediate in the preparation of Potassium permanganate.
I would guess the answer is below 240 C as that is the temperature at which the Potassium permanganate decomposes per Wikipedia.
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Texium
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Or, take a look at this other thread that is specifically about manganates: https://www.sciencemadness.org/whisper/viewthread.php?tid=32...
Nowhere near as long and detailed as that other thread, but it is only about Mn(VI).
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