Science, Maths & Technology
The chemistry of fireworks
...English monk Roger Bacon introduced blackpowder to Europe in the 13th century. This explosive material consists of sulfur and charcoal (a fuel), mixed with potassium nitrate (an oxidizer). A simple ‘banger’ comprises the blue touchpaper that is impregnated with potassium nitrate, which smoulders when lit. This reaches a sulfurless priming powder, which is a mixture of...