Alexander Marcet
Alexander John Gaspard Marcet (born August 1, 1770 in Geneva , † October 19, 1822 in London ) was a Geneva-British chemist and doctor.
Marcet was born the son of a watchmaker and a member of the Council of Two Hundred . Alexander Marcet studied philosophy and law at the Geneva Academy and traveled to England with Nicolas-Théodore de Saussure in 1793/94 . Since he was sentenced to five years in exile in the wake of the revolution in Geneva, he traveled with Charles-Gaspard de la Rive to Edinburgh in 1794 , where he studied medicine and graduated in 1797 with a dissertation on diabetes mellitus . He worked at London hospitals, from 1804 at Guy's Hospital , where he also taught chemistry from 1805. In 1800 he took on British citizenship. In 1819 he returned to Geneva, where he became professor of medicinal chemistry (until 1821) and member of the Representative Council (until 1822).
Marcet was one of the first to research the chemical structure of the seas . In 1819 he discovered that the ratio of the main ions in seawater - sodium , chloride and magnesium ions - is exactly the same in all oceans. This principle of constant proportions applies regardless of the total salt content of the respective sea.
Works
- An essay on the chemical history and medical treatment of Calculous Disorders. 1817.
- An attempt at a chemical history and medical treatment of stone diseases. 1818.
- Concerning the specific gravity, the temperature, and the salts of the sea-water in different parts of the oceans and in enclosed seas. 1819.
- Chemical investigations on the urinary stones. 1820.
literature
- René Sigrist: Marcet, Alexandre. In: Historical Lexicon of Switzerland .
Individual evidence
- ↑ according to oceans. The great image encyclopedia. Dorling Kindersley 2007. ISBN 978-3831010769
| personal data | |
|---|---|
| SURNAME | Marcet, Alexander |
| ALTERNATIVE NAMES | Marcet, Alexander John Gaspard |
| BRIEF DESCRIPTION | Swiss-British chemist and doctor |
| DATE OF BIRTH | August 1, 1770 |
| PLACE OF BIRTH | Geneva |
| DATE OF DEATH | October 19, 1822 |
| Place of death | London |