A shocking video shows the moment a barrel of liquid nitrogen exploded in a botched chemistry experiment in - causing 15 people, including nine children, to be hospitalised. The blast from the experiment at the House of Culture in Girona left victims with burns, which were treated at Placa de l'Hospital, reported . The footage shows the crowd, consisting mainly of children and a few parents, waiting expectantly to see the experiment - some with their cameras out.
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