Antoine Lavoisier
He transformed chemistry from a mystical art into a modern science by identifying oxygen's role in combustion and establishing the law of conservation of mass.
1743–1794 (age 51)·French nobleman and chemist·Birthday: August 26
Biography
Antoine Lavoisier was a man of system and precision in an age of alchemical mystery. A wealthy French nobleman and tax collector, he brought rigorous measurement to the chaotic world of 18th-century chemistry. His most famous experiment meticulously demonstrated that matter is neither created nor destroyed in chemical reactions, only rearranged—a principle now known as the law of conservation of mass. He gave oxygen its name and correctly explained its function in combustion and respiration, dismantling the long-held phlogiston theory. Lavoisier's 1789 textbook, 'Traité Élémentaire de Chimie,' standardized chemical nomenclature, effectively creating the language modern chemists still speak. His brilliant career was cut short by the French Revolution; his association with the tax-collecting Ferme Générale led to his execution by guillotine, a tragedy that robbed science of one of its founding minds.
#1 When Antoine Was Born
The biggest hits of 1743
Antoine's Life & Times
The world at every milestone
1743Born
1748Started school
1756Became a teenager
1759Could drive
1761Could vote
1764Turned 21
1773Turned 30
1783Turned 40
1793Turned 50
1794Died at 51
Key Achievements
- Formulated the law of conservation of mass, a cornerstone of modern chemistry.
- Recognized and named oxygen and hydrogen, correctly explaining their roles in combustion and acid formation.
- Co-authored the 'Méthode de Nomenclature Chimique,' which established the systematic naming of chemical compounds.
- Authored the influential textbook 'Traité Élémentaire de Chimie,' which organized chemistry into a coherent science.
Did You Know?
He was a member of the Ferme Générale, a private tax collection company, which financed his scientific research but led to his execution.
He also worked on improving France's gunpowder and street lighting systems.
His wife, Marie-Anne Paulze Lavoisier, was a skilled illustrator and translator who played a crucial role in documenting and promoting his work.
He is often called the 'Father of Modern Chemistry.'
“Nothing is lost, nothing is created, everything is transformed.”
