Jean-Antoine Chaptal and the Industrial Chemistry

Jean-Antoine Chaptal

Jean-Antoine Chaptal

On June 5, 1756, French chemist, physician, agronomist, industrialist, statesman, educator and philanthropist Jean-Antoine Chaptal, comte de Chanteloup was born. Chaptal authored the first book on industrial chemistry and also coined the name “nitrogen. He was the first to produce sulphuric acid commercially in France at his factory at Montpellier and helped to organize the introduction of the metric system.

Jean-Antoine Chaptal studied medicine at the medical school at the University of Montpellier and continued his postgraduate study in medicine and chemistry at Paris. There he attended courses on chemistry at the École de Médicine given by J.B.Bucquet, who was a friend of Lavoisier and instructor earlier of Berthollet. Chaptal became professor in Montpellier. His first book Mémoires de chimie was published in 1782.

At Montpellier, Chaptal established one of the first modern chemical factories in France. The company manufactured sulfuric, nitric, hydrochloric and other acids, alum, white lead and soda, among other substances and was quite successful. In the meantime, his scientific work was published by the Académie Royale des Sciences and in the Annales de chimie, the new journal founded in 1789.

It is believed that Jean-Antoine Chaptal was indeed a liberal, but probably apolitical as well. He believed in orderly change, human progress, competence and hierarchy. Initially, he welcomed the French Revolution. But in 1793 he determined to lead opposition in Montpellier against the extremism of the Committee of Public Safety of the National Convention in Paris. Chaptal was arrested but released due to his company’s value to the nation. In the Spring of 1794, by order of Lazare Carnot, the Minister of War, Chaptal was charged with the management of the major gunpowder factory at Grenelle in Paris. After Thermidor, Chaptal spent about four years mainly in Montpellier teaching at the medical school and rebuilding his chemicals industry. Jean-Antoine Chaptal was elected to the Institut and became a member of the editorial board of the Annales de chimie. Further he built a second large chemicals industry near Paris at Ternes.

In later years, Chaptal became Napoleon’s Council of State, then acting Minister of Interior, and finally confirmed in the position. He would remain in this high office until his resignation on 6 August 1804. It is belied that everything Jean-Antoine Chaptal touched was improved. From early on, he worked to design and implement not only a fundamentally new administrative structure of prefects, subprefects, mayors and municipal councils for France, but also a new primary and secondary educational system introducing the lycée.

After his resignation in 1804, Chaptal wrote Napoleon with whom he had developed a friendship, that he wanted to get back to his scientific endeavors. Some of his major works were written in the years immediately following the resignation. He still had his chemical factories and his son was about to establish a third chemicals plant at Martigues in southern France. In his later years Jean-Antoine Chaptal resumed his favorite position as president of the Society for the Encouragement of National Industry and organizer of industrial expositions.

Unfortunately, the 1820s for Chaptal were clouded by the financial ruin of his son, Jean-Baptiste Chaptal and Chaptal himself was left with a small pension. His remarkable career had unfolded through five different regimes and he had contributed importantly to every one. His name is one of the 72 names of famous French scientists engraved on the Eiffel Tower in Paris.

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