Etymology:
The term "phlogiston" comes from the Greek word "phlogistos," which means "inflammable" or "burning."
Meaning:
Phlogiston was a hypothetical substance that was believed to be present in all flammable materials. It was thought to be released when a material burned, giving off heat and light.
Origin:
The concept of phlogiston was first proposed by the German chemist Johann Joachim Becher in the 17th century. He believed that all flammable substances contained a substance called "terra pinguis" ("fatty earth"), which was released during combustion.
In the 18th century, the French chemist Georges-Louis Leclerc, Comte de Buffon, modified Becher's theory and proposed that phlogiston was a weightless fluid that permeated all matter. He believed that when a material burned, phlogiston escaped, leaving behind a substance that was heavier and less flammable.
The phlogiston theory was widely accepted until the late 18th century, when it was gradually replaced by the oxygen theory of combustion. The oxygen theory, proposed by Antoine Lavoisier, demonstrated that combustion required the presence of oxygen, not phlogiston.
Significance:
The phlogiston theory played a significant role in the development of chemistry. It led to the discovery of new substances, such as hydrogen and oxygen, and helped to explain the processes of combustion and oxidation. However, the theory was ultimately incorrect, and its demise marked a turning point in the history of chemistry.
Etymology De prefix meaning remove or deprive of Phlogiston noun a hypot
Etymology The term phlogiston comes from the Greek word phlogistos which means inf
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1 Etymology Greek φλεγματικός phlegmatikos Root φλέγμα phlegma
Etymology The term phlogiston comes from the Greek word phlogistos which means inf
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