Danish university pauses chemistry demonstrations following accident

Aalborg University in Denmark has indefinitely paused its public chemistry shows while it conducts a review after a demonstration it organised at a local library injured several people earlier this month. Two people had to be treated in a hospital including the student employee conducting the experiment who sustained damage to his hands, and a boy in the audience who was hit by a glass fragment on his shoulder. The demonstration is known as the ‘genie in the bottle’ because it generates a dramatic puff of ‘smoke’ from a bottle following the catalytic decomposition of hydrogen peroxide.