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Cannon fire

Description

In this exothermic reaction, a series of loud, but harmless, bangs are heard as the oxygen that is evolved increases the rate of burning.

Credits

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

 



Apparatus Chemicals

For each demonstration:

Eye protection

Safety screens

Evaporating dish (10 cm diameter)

Heat resistant mats

Wooden splint

Spatula

Potassium manganate(VII) (potassium permanganate) (OXIDISING, HARMFUL), 0.5 g

Hydrogen peroxide, 20-volume (IRRITANT), 30 cm3

Ethanol (IDA, Industrial Denatured Alcohol) (HIGHLY FLAMMABLE, HARMFUL), 20 cm3

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

 


Read our standard health & safety guidance





Page last updated October 2015

In this exothermic reaction, a series of loud, but harmless, bangs are heard as the oxygen that is evolved increases the rate of burning.

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.