Ossian Aschan
Adolf Ossian Aschan (born May 16, 1860 in Helsinki ; † February 25, 1939 there ) was a Finnish chemist (chemical engineering, organic chemistry ).
Aschan studied civil engineering and then chemical engineering at the Helsinki Polytechnic, graduating as a chemical engineer in 1881. He also received a master's degree from the University of Helsinki. He worked as a chemist in the nitric acid works in Turku , worked briefly in a dye works in Saint Petersburg and then went to Stockholm and Berlin for further studies, where he received his doctorate in 1884. He then worked as a geologist and food chemist in Helsinki, received his doctorate there again, and in 1896 became a university lecturer and teacher at the Polytechnic. From 1899 he also temporarily took over the chair of chemistry at the university. In 1907/08, as laboratory manager at E. Schering in Berlin, he implemented his camphor synthesis from turpentine oil (the pinene contained in it ). In 1908 he became a full professor of chemistry in Helsinki. In 1916 he founded the Central Laboratory of the Finnish Chemical Industry. In 1927 he retired. In 1930 he was elected a corresponding member of the Göttingen Academy of Sciences .
He investigated naphthenic acids from Baku oil (and alicyclic monocarboxylic acids in general ), dealt with industrial camphor synthesis (see above) and recognized the suitability of metallic sodium for the polymerization of rubber from isoprene . For the Finnish paper industry he investigated resins and glues, partly in collaboration with the Hercules Powder company.
He was a member of the Royal Danish Academy of Sciences. In 1910/11 he was in the Finnish Parliament. In 1929 he received the Norblad Ekstrand Medal from the Swedish Chemical Society .
Fonts
- The constitution of camphor and its main derivatives, Vieweg 1903, Archives
- with Julius Wilhelm Brühl , Edvard Hjelt: Die Pflanzen-Alkaloide, Vieweg 1900, Archives
- Chemistry of Alicyclic Compounds, Vieweg 1905, Archives
literature
- Winfried R. Pötsch (lead), Annelore Fischer, Wolfgang Müller: Lexicon of important chemists , Harri Deutsch 1989, p. 18
References and comments
- ↑ The total synthesis of camphor was achieved by his colleague in Finland Gustav Komppa in 1905
- ↑ Holger Krahnke: The members of the Academy of Sciences in Göttingen 1751-2001 (= Treatises of the Academy of Sciences in Göttingen, Philological-Historical Class. Volume 3, Vol. 246 = Treatises of the Academy of Sciences in Göttingen, Mathematical-Physical Class. Episode 3, vol. 50). Vandenhoeck & Ruprecht, Göttingen 2001, ISBN 3-525-82516-1 , p. 28.
- ↑ Lista mottagare. Svenska Kemisamfundet, accessed on September 7, 2019 .
| personal data | |
|---|---|
| SURNAME | Ashan, Ossian |
| ALTERNATIVE NAMES | Aschan, Adolf Ossian (full name) |
| BRIEF DESCRIPTION | Finnish chemist |
| DATE OF BIRTH | May 16, 1860 |
| PLACE OF BIRTH | Helsinki |
| DATE OF DEATH | February 25, 1939 |
| Place of death | Helsinki |