"a nonexistent chemical that, prior to the discovery of oxygen, was thought to be released during combustion" - http://dictionary.reference.com/browse/phlogiston
WHO?Robert Boyle, Joseph Black, Joseph Priestly, Henry Cavendish, Antoine Lavoisier - http://web.fccj.org/~ethall/phlogist/phlogist.htm
WHEN?
Latter half of the 17th century; lasted for 100 years. - http://web.fccj.org/~ethall/phlogist/phlogist.htm
WHY (was it abandoned)?
"Eventually, quantitative experiments revealed problems, including the fact that some metals, such as magnesium, gained weight when they burned, even though they were supposed to have lost phlogiston. Mikhail Lomonosov attempted to repeat Robert Boyle's celebrated experiment in 1753 and concluded that the phlogiston theory was false." - http://en.wikipedia.org/wiki/Phlogiston_theory
No comments:
Post a Comment