Sciencemadness Discussion Board - Potassium manganate

Potassium manganate

Romix - 29-6-2015 at 09:15

At what temperature reaction of potassium hydroxide, manganese dioxide and oxygen begins?

blogfast25 - 29-6-2015 at 09:41

At what temperature reaction of potassium hydroxide, manganese dioxide and oxygen begins?

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]

AJKOER - 30-6-2015 at 14:24

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.

Texium - 30-6-2015 at 14:34

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).