Genie in the bottle

Column of steam escapes from the bottle.

Scientific name: Hydrogen peroxide decomposes under the action of a catalyst. Produced oxygen and water liberates very fast.


Genie in a Bottle Demonstration

Genie in a Bottle - Cool Science Experiment

by Sick Science!

Genie in the bottle

Chemistry experiment 51 - Genie in a bottle

by koen2all

How to make a Genie in the Bottle Demo - Hydrogen peroxide and manganese dioxide reaction

by Maki(Ng) Science Fun!


Wear eye protection goggles and gloves.

Always follow general safety recommendations. Please note that conducting chemistry experiments you must comply with the relevant legal procedures in your country.

Reaction formula

2H2O2 -[MnO2]→ 2H2O + O2

Step-by-step instruction

  1. Prepare the flask. Warp it with aluminum foil.
  2. Pour hydrogen peroxide into the flask.
  3. Add about a spoon of manganese oxide to the flask at once. Stand clear since the reaction is very violent.
  4. The genie escapes from the bottle.

Scientific background

This experiment is based on the reaction of hydrogen peroxide decomposition. Usually this reaction is very slow. To speed it up the catalyst is added to hydrogen peroxide solution. Manganese oxide increases the rate of the reaction but is not consumed during it. In the case under study the oxide is solid powder and probably its catalytic action is based on providing a large surface area and proper environment for the reaction to proceed. The observed fog is caused by condensing water vapor mixed with liberated oxygen gas.


Published on 14 June 2015

  • Fire
  • Heating with fire
  • Explosion
  • Poisoned gas
  • Organic
  • Electricity
  • Solution
  • Oxidation reduction
  • Color change
  • Precipitate
  • Gassing
  • Catalyst