Date context
1743–1794
Including gases in measurement
Born in Paris and initially trained in law, Lavoisier turned to science. He emphasized weighing reactants and products, including gases, under controlled conditions. Accounting for gaseous material helped explain why some metals gained mass when heated instead of simply losing a combustible constituent.
Reinterpreting combustion
Building on gas experiments by Priestley and others, Lavoisier repeated investigations and explained combustion through combination with oxygen, opposing phlogiston theory. Isolating a gas, interpreting its properties and constructing a new account of reactions were distinct achievements involving several investigators.
Names, textbooks and collaborators
The 1789 Traité élémentaire de chimie organized terminology, experiments and a classification of simple substances. Marie-Anne Paulze contributed records, illustrations and scholarly communication. Revised language and presentation helped researchers compare results and brought the new chemistry into teaching.
Science and public life
Lavoisier worked on gunpowder, taxation and measures, and was executed during the French Revolution in 1794. His classifications included caloric, and he incorrectly associated all acids with oxygen. His historical importance does not imply that every part of his chemistry survived unchanged.