Decomposition releasing oxygen occurs slowly.  The addition of potassium permanganate catalyst speeds up the reaction.

Decomposition releasing oxygen occurs slowly.  The addition of potassium permanganate catalyst speeds up the reaction.  The rate of this can be measured using data logging equipment.

A mixture of ethanol and hydrogen peroxide.  Hydrogen peroxide decomposes using potassium permanganate catalyst.  This produces oxygen bubbles which explode when they come in contact with the burning ethanol.

As above but a lot more vigorously.

Potassium permanganate rapidly speeds up the oxidation of methanol.  This only occurs on the potassium permanganate crystals giving small explosions.