Potassium manganite
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Potassium manganite is the chemical compound with the formula K4MnO4. The brown-coloured manganite anion is a significant if often overlooked product of the reduction of permanganate. This Mn(IV) species is produced by dissolving MnO2 in strongly alkaline solution. [MnO4]4- is the conjugate base of the hypothetical acid Mn(OH)4. Alternatively, MnO44- can be generated by reduction of MnO43-.
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