Paul Walden
Baltic German chemist (1863-1957) · Germany · On the map · Scientists · Died at 93
Paul Walden was a Latvian-Baltic German chemist known for his work in stereochemistry and history of chemistry. In particular, he discovered Walden's rule, he invented the stereochemical reaction known as Walden inversion and synthesized the first room-temperature ionic liquid, ethylammonium nitrate.
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