Skip to main content

Reactions of chlorine, bromine and iodine with aluminium

Description

In this demonstration experiment aluminium reacts with three halogens, producing spectacular exothermic redox reactions.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
reactions-of-chlorine-bro...



Apparatus Chemicals

Goggles

Thick chemically-resistant gloves such as marigold industrial blue nitrile

Access to a fume cupboard

The teacher will require:

Mortar and pestle

Heat resistant mat, 30 x 30 cm

Watch glasses, about 10 cm diameter, 2

Reduction tube (Note 1)

Test-tubes, 3

Test-tube rack

Teat pipette

Filter paper

Spatula or wooden splint

Bosses, clamps and stands

Chemicals for one demonstration:

Aluminium foil, a few cm2

Aluminium powder (HIGHLY FLAMMABLE, CONTACT WITH WATER MAY LIBERATE HYDROGEN), 0.1 g

Liquid bromine (CORROSIVE, VERY TOXIC), 1 cm3 (Note 2)

Solid iodine (HARMFUL), 0.4 g

Silver nitrate solution, about 0.1M, about 10 cm3

A little deionised water in a wash bottle

Chlorine generator (TOXIC, IRRITANT) Generating, collecting and testing gases

Sodium chlorate(I) solution (sodium hypochlorite) (14% (w/v) available chlorine) (CORROSIVE), about 100cm3

Hydrochloric acid, 5M (CORROSIVE), about
 50 cm3

Refer to Health & Safety and Technical notes section below for additional information.

 









Page last updated January 2016

In this demonstration experiment aluminium reacts with three halogens, producing spectacular exothermic redox reactions.

ADDITIONAL INFORMATION

This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. This collection of over 200 practical activities demonstrates a wide range of chemical concepts and processes. Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures. Practical Chemistry activities accompany Practical Physics and Practical Biology.