Ernst Erdmann
Ernst Immanuel Erdmann (born February 12, 1857 in Altfelde , † August 17, 1925 in Sweden ) was a German chemist .
Life
Erdmann was the son of a pastor (superintendent) who taught him until he was 16, and after graduating from high school in Tilsit , he studied chemistry from 1876 at the University of Berlin , the University of Heidelberg (with Robert Bunsen ) and the University of Strasbourg . In 1879/80 he did his one year military service. In 1881 he received his doctorate in Strasbourg (dissertation on the conversion of cinnamic acid with sulfuric acid ), was there assistant and went to Agfa in Berlin in 1883 , where he dealt with dyes. In 1888 he discovered there the usability of p- phenylenediamine as a hair dye (which was later widely used by others, for example in 1907 by Eugène Schueller in Paris, founder of L'Oréal ). In 1889 he and his brother Hugo Erdmann founded their own chemical laboratory in Halle, which in 1900 was incorporated into the university as a university laboratory. In 1901 he became a private lecturer for technical chemistry in Halle and after another doctorate in Halle (1902) and habilitation (1902) he became head of the Institute for Technical Chemistry there, in 1908 professor and in 1913 full honorary professor for applied chemistry. In 1905 he became a member of the Leopoldina . In 1922 he retired. He died on a trip in Sweden.
He dealt with gas liquefaction at low temperatures (1901 plant for air liquefaction), developed a process for illuminating gas cleaning of carbon monoxide and dealt with linseed oil and catalytic fat hardening.
In Halle he dealt with the chemistry and the history of the formation of local deposits, such as that of lignite and potash salts, and provided evidence of their marine origin with the detection of iodine in central German salt deposits. In 1917 he became the founder and managing director of the Halle Association for the exploration of Central German mineral resources and their utilization. He also examined many essential oils with his brother Hugo and he examined distillation products of lignite and wood.
His mother Rosa Angelica was a sister of the chemist Felix Hoppe-Seyler , with whom Erdmann also studied in Strasbourg.
Fonts
- The chemistry and industry of potash salts, commemorative publication for the 10th General Miners' Days in Eisenach, Berlin, published by the Royal Geological State Institute, 1907
- with Moritz Dolch: Chemistry of Brown Coal 1907, 2nd edition, Halle: Knapp 1927
- The genetic link between lignite and hard coal, 1924
- About the occurrence of iodine in salt minerals, Angewandte Chemie, Volume 23, 1910, pp. 342-347
literature
- Winfried R. Pötsch (lead), Annelore Fischer, Wolfgang Müller: Lexicon of important chemists , Harri Deutsch 1989, p. 139
Web links
- Entry on Ernst Erdmann in the Catalogus Professorum Halensis
- Chemistry friends Erkner
References and comments
- ↑ Member entry by Ernst Erdmann at the German Academy of Natural Scientists Leopoldina , accessed on January 21, 2016.
| personal data | |
|---|---|
| SURNAME | Erdmann, Ernst |
| ALTERNATIVE NAMES | Erdmann, Ernst Immanuel (full name) |
| BRIEF DESCRIPTION | German chemist |
| DATE OF BIRTH | February 12, 1857 |
| PLACE OF BIRTH | Altfelde |
| DATE OF DEATH | August 17, 1925 |
| Place of death | Sweden |