Louis Claude Cadet de Gassicourt
Louis Claude Cadet de Gassicourt ( dt. Ludwig Claudius Cadet) (born July 24, 1731 in Paris , † October 17, 1799 there ) was a French chemist and pharmacist . In 1760 he synthesized the first organometallic compound.
Life
He was the first pharmacist and senior at the royal Paris hospital for invalids and chief inspector of the pharmacies of the French military hospitals. He later became director of the porcelain factory in Sèvres . In 1771, Cadet de Gassicourt married Marie Thérèse Françoise Boisselet , a former mistress of Louis XV. Louis XV is very likely the father of Charles Louis Cadet von Gassicourt (1769–1821).
Cadet de Gassicourt was a Freemason .
plant
In 1760 Cadet de Gassicourt worked on invisible inks (" secret inks ") based on cobalt salts. However, the cobalt minerals he used were contaminated with arsenic . When the minerals were distilled together with potassium acetate , tetramethyldiarsine was formed; an extremely disgusting smelling, highly toxic compound. The compound was initially referred to as "Cadet's liquid" or "Cadet's fuming liquid" ( liqueur fumante de Cadet ). Jöns Jakob Berzelius later called the connection Kakodyl ( Greek kakados "stinking"). It was the first historically verifiable synthesis of an organometallic compound. The composition of the cacodyl was only clarified 83 years later by Robert Wilhelm Bunsen .
Cadet translated the work of the Strasbourg chemist Jacob Reinbold Spielmann (1722–1783) from Latin into French.
Honors
In 1761 he was elected a member of the German Academy of Sciences Leopoldina . In 1766 he was accepted into the Académie des Sciences . Since 1787 he was an elected member of the American Philosophical Society .
Publications (selection)
- CL Cadet de Gassicourt, experiments which serve to prove that a coppery and arsenical being is present in the borax, together with a glassy earth. In: New Hamburg magazine. , 4th Vol., 19th St, 1768, pp. 338-357.
- CL Cadet de Gassicourt, experiments from which it can probably be shown that a glassy earth is really present in the borax. In: New Hamburg magazine. , 4th Vol., 19th St, 1768, pp. 358-368.
literature
- J. Tulard et al. a., Histoire et dictionnaire de la Révolution française. 1789-1799 , Paris, 1987, ISBN 2-702-82076-X
Individual evidence
- ↑ JF Neigebaur , History of the Imperial Leopold Carolinian German Academy of Natural Scientists during the Second Century of Its Existence , 1860, p. 225.
- ↑ a b G. Schwedt, Goethe as a chemist. , Springer, 1998, ISBN 3-540-64354-0
- ^ University of Jena, Journals @ UrMEL
- ^ Form, number, order: Studies on the history of science and technology. , Editor: R. Seising u. a., Franz-Steiner-Verlag, 2004, ISBN 3-515-08525-4 , p. 594.
- ↑ B. Graewe, Metallo-supramolecular substances as sensor-active layers for the micro oscillating quartz balance. , Dissertation, University of Bonn, 2004
- ^ List of members Leopoldina, Louis-Claude Cadet de Gassicourt
- ↑ member histrory: Louis C. Cadet Gassicourt. American Philosophical Society, accessed May 27, 2018 .
| personal data | |
|---|---|
| SURNAME | Cadet de Gassicourt, Louis Claude |
| ALTERNATIVE NAMES | Cadet, Ludwig Claudius |
| BRIEF DESCRIPTION | French pharmacist and chemist |
| DATE OF BIRTH | July 24, 1731 |
| PLACE OF BIRTH | Paris |
| DATE OF DEATH | October 17, 1799 |
| Place of death | Paris |