Wilhelm Schlenk

Wilhelm Johann Schlenk (22 March 1879 – 29 April 1943) was a German chemist. He was born in Munich and also studied chemistry there. Schlenk succeeded Emil Fischer at the University of Berlin in 1919.

Wilhelm Schlenk
Wilhelm Johann Schlenk
Born	Wilhelm Johann Schlenk (1879-03-22)22 March 1879 Munich, German Empire
Died	29 April 1943(1943-04-29) (aged 64) Tübingen, Germany
Alma mater	University of Munich
Known for	Schlenk flask Schlenk line
Awards	Lieben Prize (1917)
Scientific career
Institutions	University of Munich, University of Jena, University of Vienna, University of Berlin, University of Tübingen
Doctoral advisor	Oskar Piloty
Doctoral students	Herman Mark Fritz Feigl Ernst David Bergmann

Schlenk was an organic chemist who discovered organolithium compounds around 1917. He also investigated free radicals and carbanions and discovered (together with his son) that organomagnesium halides are capable of participating in a complex chemical equilibrium, now known as a Schlenk equilibrium.[1]

Today Schlenk is remembered mostly for developing techniques to handle air-sensitive compounds and for his invention of the Schlenk flask. The latter is a reaction vessel with a glass or Teflon tap for the addition and removal of gases, such as nitrogen or argon. He is also known for the Schlenk line, a double manifold incorporating a vacuum system and a gas line joined by double oblique taps that allow the user to switch between vacuum and gas for the manipulation of air-sensitive compounds.