Alexander Classen
Alexander Martin Hubert Classen (born April 13, 1843 in Aachen ; † January 28, 1934 there ) was a chemist and the founder of analytical electrolysis .
Life
Classen studied in Gießen and Berlin from 1861 and was then an assistant in Rostock . In 1864 he received his doctorate in Berlin and was an assistant there from the following year. Two years later he ran his own laboratory . In 1870 he became a lecturer and in 1878 professor for analytical chemistry at the Technical University of Aachen . In 1878 the Academic Association of Chemists and Metallurgists at the Aachen Polytechnic , which later became Corps Montania Aachen, made him an honorary member. In 1882 he succeeded Hans Heinrich Landolt as a full professor for inorganic and analytical chemistry and in 1894 became director of the Electrochemical Institute. In 1914 he retired.
Classen worked on the electrolytic gravimetry of metals and in 1897 developed a rapid method with a rotating anode. It also made sugar and alcohol from cellulose . He was a member of the Corps Teutonia Giessen .
Awards
"In grateful recognition of the excellent services he has earned as a teacher and professor at the Aachen University since its inception", Alexander Classen was made an honorary senator of the RWTH Aachen on April 13, 1933 on the occasion of his 90th birthday, as well as in 1923 to an honorary doctorate. In addition, a street in Aachen was named after him in 1933. In the same year he received the Goethe Medal for Art and Science . The faculty set up an Alexander Classen Foundation to honor outstanding services in the field of experimental chemistry.
Publications
- Handbook of analytical chemistry
- with Henry Enfield Roscoe : Textbook of Inorganic Chemistry .
- Selected methods of analytical chemistry
- Handbook of the qualitative chemical analysis of inorganic a. organic compounds . Enke, Stuttgart 5. Probably u. verb. Edition 1896 urn : nbn: de: hbz: 061: 2-13631
- further publications in the Library of Congress : Titles List (Library of Congress Online Catalog)
literature
- Hansheinrich Friedländer: Corp table of the Corps Teutonia Giessen 1839-1999 , Giessen 1999, p. 340
- Robert Schwarz : Classen, Alexander. In: New German Biography (NDB). Volume 3, Duncker & Humblot, Berlin 1957, ISBN 3-428-00184-2 , p. 265 ( digitized version ).
Individual evidence
- ↑ Ferenc Szabadváry, Gyula Svehla: History of analytical chemistry
- ^ Franz Ludwig Neher: The Corps Montania zu Aachen, 1872-1957 , 1957, p. 21
- ↑ A. Würzburg, C. May: General In: Journal for the investigation of food and luxury goods, as well as the objects of daily use. August 15, 1901, Volume 4, Issue 16, pp 765-767 doi : 10.1007 / BF02439303
- ↑ Kösener Corpslisten 1960, 38/660
| personal data | |
|---|---|
| SURNAME | Classen, Alexander |
| ALTERNATIVE NAMES | Classen, Alexander Martin Hubert |
| BRIEF DESCRIPTION | Founder of analytical electrolysis |
| DATE OF BIRTH | April 13, 1843 |
| PLACE OF BIRTH | Aachen |
| DATE OF DEATH | January 28, 1934 |
| Place of death | Aachen |