Phlogiston

  • (noun): A hypothetical substance once believed to be present in all combustible materials and to be released during burning.

Some articles on phlogiston:

Marie-Anne Pierrette Paulze - Contributions To Chemistry
... science dominated by George Stahl’s theory of phlogiston ... In the eighteenth century the idea of phlogiston (a fire-like element which is gained or released during a material’s combustion) was used to describe the apparent property ... a master in the English, Latin and French language, was able to translate various works about phlogiston into French for her husband to read ...
Science In The Age Of Enlightenment - Disciplines - Chemistry
... under Johann Joachim Becher and Georg Ernst Stahl, phlogiston theory was an attempt to account for products of combustion ... According to the theory, a substance called phlogiston was released from inflammable materials through burning ... The first strong evidence against phlogiston theory came from pneumatic chemists in Britain during the later half of the 18th century ...
Phlogiston Theory - Challenge and Demise
... such as magnesium, gained weight when they burned, even though they were supposed to have lost phlogiston ... to repeat Robert Boyle's celebrated experiment in 1753 and concluded that the phlogiston theory was false ... He wrote in his diary Some phlogiston proponents explained this by concluding that phlogiston had negative weight others, such as Louis-Bernard Guyton de Morveau, gave ...
History Of Thermodynamics - History - Transition From Chemistry To Thermochemistry
... See also History of chemistry The theory of phlogiston arose in the 17th century, late in the period of alchemy ... Phlogiston was a hypothetical substance that was presumed to be liberated from combustible substances during burning, and from metals during the process of rusting ... Caloric, like phlogiston, was also presumed to be the "substance" of heat that would flow from a hotter body to a cooler body, thus warming it ...
History Of Chemistry - From Alchemy To Chemistry - Antoine Lavoisier
... for his discovery of the law of conservation of mass, and his refutation of the phlogiston theory of combustion in 1783 ... (Phlogiston was supposed to be an imponderable substance liberated by flammable materials in burning.) Mikhail Lomonosov independently established a tradition of chemistry in Russia in the 18th century ... Lomonosov also rejected the phlogiston theory, and anticipated the kinetic theory of gases ...