Burning of Aluminium in Chlorine

Aluminum foil glows white in the atmosphere of a yellow -green gas.

Scientific name: Aluminum reacts with chlorine forming aluminum chloride


Chlorine Gas and Aluminium (reaction only)

by Periodic Videos

Reaction of aluminum with chlorine

by ChemToddler


This experiment must be performed only outside or in a fume hood. 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

2Al + 3Cl2 → 2AlCl3


  1. Aluminium foil

Step-by-step instruction

WARNING! This experiment is dangerous! You should NOT perform this at home. ONLY carry out this experiment, if you are a trained chemist, and you understand local safety and legal requirements, which are required to perform such experiments

  1. Since chlorine is a hazardous gas, this experiment must be performed only in a fume hood.
  2. Prepare the flask. Put it into the fume hood.
  3. Put a piece of aluminum foil on the wire.
  4. Fill the flask with chlorine.
  5. Heat the aluminum foil with a gas burner.
  6. Place the foil into the flask.
  7. Aluminum burns in chlorine atmosphere. The white steam appears.

Scientific background

In this experiment the aluminum is oxidized by chlorine gas. This reaction is highly exothermic and is accompanied by flame and formation of white steam of aluminum chloride:

2Al + 3Cl2 → 2AlCl3


Published on 25 February 2015

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