Alchemy. Such a misunderstood science. I hope this article can help set things straight for whomever reads it. Alchemy is an ancient art, first practiced in the Middle Ages. It was devoted to finding a substance that would transmute, (or turn) common metals in to gold, silver or other precious metals, and also to cause immortality in humans. Alchemy was most likely the first time people dipped their toes into chemistry. Alchemy began in Ancient Egypt, and was especially prevalent in Alexandria in the Hellenistic period. At the same time, China had been tinkering with the ideas as well. Early writings about alchemy by greek philosiphers are sometimes thought of as the first chemical theories. Empedocles (im-ped-oh-klees) formed the all too famous theory that all things in existence were made of air, fire, earth and water. Later, the emperor Diocletian (die-oh-klee-shun) ordered all of the Egyptian texts on the chemistry of gold and silver to be burned and for all expirements to stop. Zosimus the Theban disvovered that sulfuric acid is a solvent of metals, and, using this, he removed oxygen from the red oxide of mercury, turning the oxidized mercury pure again, much like if you took rust off a nail, it would be a normal nail again. Alchemy's fundemental concept came from an Aristotelian doctrine saying that all things tend to reach perfection at some point. Since other common metals were "less perfect" than gold and other precious metals, it made sense to these researchers that these metals would eventually turn to gold. Also it was thought that nature must make gold out of common metals deep within the earth, so with any luck, this process could be done in the lab with good result. Eventually Alch |