The combustion of alcohol in a whoosh bottle. This is a popular demonstration of the following reaction:
Alcohol + Oxygen = Carbon Dioxide + Water
In this case I am using methanol, which is very volatile. Most people would use ethanol or isopropanol, which are less volatile and therefore a bit safer to work with.
There are a couple of things you can do at the end, although I totally forgot to do either:
1. Quickly seal the top of the bottle with your hand. As the air inside cools down a vacuum will be formed and the air pressure outside the bottle will push the sides in.
2. Pour out the water produced by the combustion reaction.
Video created and uploaded by Tom's Photo Log: [ Ссылка ]
