Paul Thénard
Paul Thénard , Baron Thénard, (born October 6, 1819 in Paris , † August 8, 1884 in Talmay ) was a French chemist and agronomist. He is known for fighting phylloxera . He thus contributed to the survival of the Bourgogne vines until the development and import of resistant American grape varieties brought the ultimate salvation.
He was the son of the chemist Louis Thénard . In 1842 he married the daughter of the landowner, Bonne-Isaure Françoise Derrion-Duplan, and became interested in the chemical analysis of soils for viticulture (the estate was owned by Givry ). His wife inherited property in 1847 near Talmay in the Côte d'Or where Thénard settled. In addition to viticulture, he dealt with methods to improve the soil for agriculture. From 1852 to 1866 he was mayor of Talmay. He was from 1852 to 1856 representative of the canton of Pontailler-sur-Saône in the district assembly and until 1871 in the Conseil départemental de la Côte-d'Or. In 1870 he was interned in Bremen for several months during the Franco-Prussian War. His descendants still own Talmay Castle today.
When phylloxera first appeared on the Rhone (1863), then in Saône-et-Loire in 1875 and on the Côte-d'Or in 1878, he developed a method to combat this by inoculating the roots with carbon disulfide . But it was only the importation of resistant American types of wine onto which the native varieties were grafted that saved the day. His son Arnaud was involved in this.
In 1845 he showed that there is hydrogen phosphide (discovered in 1789) in solid and liquid form besides gaseous form.
In 1864 he became a member of the Académie des Sciences , and in 1847 Knight of the Legion of Honor .
In 1850 his father's biography appeared.
Web links
Individual evidence
- ^ Thénard, Mémoire sur les combinaisons du phosphore avec l'hydrogène, Ann. Chim., Row 3, Volume 14, 1845, pp. 5-50
- ↑ Un grand Français: le chimiste Thenard, 1777-1856, par son fils, Paul Thénard, introduction et notes de Georges Bouchard, Dijon, impr. de Jobard, 1950
| personal data | |
|---|---|
| SURNAME | Thénard, Paul |
| BRIEF DESCRIPTION | French chemist and agronomist |
| DATE OF BIRTH | October 6, 1819 |
| PLACE OF BIRTH | Paris |
| DATE OF DEATH | August 8, 1884 |
| Place of death | Talmay |