Categories: Accidental discoveries , Applied Chemistry , Chemistry in History |  Comments
Guest post by Rowena Fletcher-Wood
It is Christmastime, and the season of light: everywhere you look, particularly after dark, is the twinkle of hundreds of little lights. As 2015 approaches, the International Year of Light is also being kindled into action – a year designed to make us think about light technologies and global challenges in energy. So let’s start now, and out of the dark.
One of the earliest human light technologies was the match. What do you need to make fire? Oxygen, fuel and an ignition source – simple enough in theory, but not so much in practice. Fires just don’t start spontaneously. Before matches, ignition sources included flint and tinder, or a magnifying glass which, naturally, only worked on sunny days, when you are least in need of fire. But luckily, something was spontaneous: the accidental invention of matches.
Matches had nearly been discovered more than once. Having synthesised phosphorous in 1680, Robert Boyle showed awestruck onlookers how this new material created fire when rubbed with sulfur, but the combustion exercise was never put to practical use and remained merely entertainment for wealthy dabblers. He wasn’t the first to make such novelties either – as far back as 950 AD, Chinese ‘Records of the unworldly and strange’ mention ‘light-bringing slaves’ (later ‘fire-inch sticks’) that use sulfur to create fire fast from a small spark or dying embers. In 1805, a French chemist, Jean Chancel, dipped a wooden splint in sugar, potassium chlorate, and sulfuric acid, creating an explosion. It was expensive, dangerous and gave off a foul, poisonous odour. But all of these were chemical matches: they required mixing the right things together at the right time to create an exothermic reaction. The first friction match was created by accident, by apothecary John Walker in 1826. (more…)