Chromatography

We used chromatography to investigate colourings used in sweets, and to study a ransom note.

http://lavenderpondnotes.tumblr.com/post/79488374116/forensic-examination-of-ransom-note-using

http://lavenderpondnotes.tumblr.com/post/79488244330/sweets-chromatography

http://lavenderpondnotes.tumblr.com/post/79488086756/chromatography

http://lavenderpondnotes.tumblr.com/post/79487795371/sweets-chromatography

Distillation of alchohol

Distillation of alcohol - we made a brew two sessions ago, adding yeast to water and sugar. Today we attempted to separate the alcohol from the liquid. We put the liquid in round-bottomed flasks suspended in water baths over hot plates, and attached Leibig condensers to the flasks. We didn’t use naked flames because we would be dealing with flammable vapours. We monitored the temperature to keep it ideally around 78C - 80C. As before, we put iced water in the condensers. It was hard to get the setup right, but we produced a few drops of condensate which smelled of alcohol.

http://lavenderpondnotes.tumblr.com/post/79489576079/distillation-of-alcohol-we-made-a-brew-two

http://lavenderpondnotes.tumblr.com/post/79488610236/distillation-of-alcohol-not-much-was-produced