What is the word equation for potassium permanganate when heated?

Answer 1

here is the rection...

2KMnO4 + 3H2SO4 = K2SO4 + 2MnSO4 + 3H2O + 2.5O2 (alkaline)

and in other conditions...

6 KMnO4 + 9 H2SO4 → 6 MnSO4 + 3 K2SO4 + 9 H2O + 5 O3

The H2SO4/KMnO4 reaction can also produce the oily Mn2O7, which is unstable and can decompose explosively.

Answer 2

2 KMnO4 --ΔT--> K2MnO4 + MnO2 + O2

In words:

When 2 moles potassium permanganate [2 KMnO4] are heated [-ΔT-] is splits off in two parts: one mole of potassium manganate [K2MnO4] and one of manganese oxide [or manganese(IV) oxide, MnO2], while releasing one mole of oxygen gas [O2]

Answer 3

KMnO4 will dissolve in water to give a deep purple (wine) coloured solution. There is no other chemical reaction of KMnO4 with water.

Answer 4

If heated at about 240°C it decomposes into Potassium manganate, Manganese dioxide and Oxygen.

2 KMnO4 --240°C--> K2MnO4 + MnO2 + O2

Answer 5

The reaction is the following:

4 KMnO4 + 4 KOH → 4 K2MnO4 + O2 + 2 H2O

Answer 6

2KMnO4 → MnO2 + K2MnO4 + O2