August Bernthsen

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August Bernthsen in 1883

Heinrich August Bernthsen (born August 29, 1855 in Krefeld , † November 26, 1931 in Heidelberg ) was a German chemist .

Life

The son of a building contractor, he studied mathematics at the University of Bonn , but then quickly switched to chemistry and the University of Heidelberg . After only one semester he returned to Bonn and received his doctorate there in 1876 . He then worked as a lecture assistant at Kekulé and completed his habilitation in 1879. In addition to his subsequent position as a private lecturer, he developed close scientific cooperation with BASF in the field of dyes. In 1883 Bernthsen became an associate professor at the University of Heidelberg. He switched to industry in 1887 and, as the successor to Heinrich Caro , headed the main laboratory at BASF AG from 1889. From 1919 he was also an honorary professor at Heidelberg University. In 1924 he became an extraordinary member of the Heidelberg Academy of Sciences .

On March 17, 1884, he married Maria Bernthsen . The marriage had three children: Elisabeth Wilhelma (1885–1902), Heinrich Ferdinand August (1893–1902) and Walther Theodor Friedrich (1888–1919).

Act

In the field of dyes , he worked on aspects of organic and physical chemistry. August Behrentsen's scientific achievements include clarifying the constitution of methylene blue as a phenothiazine derivative and the development of numerous interesting dyes based on phenazine and acridine. He made significant contributions to the development of noun dyes . The Bernthsen reaction is named after him.

From 1922 to 1924 he was chairman of the Bunsen Society .

In 1925 he received the Dr. hc from the Technical University in Berlin and in 1926 the Dr. hc from Heidelberg University.

literature

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Individual evidence

  1. ↑ Kipnis.de last accessed on August 25, 2014.
  2. ↑ Winfried R. Pötsch, Annelore Fischer and Wolfgang Müller with the collaboration of Heinz Cassenbaum: Lexicon of important chemists , VEB Bibliographisches Institut Leipzig, 1988, pp. 116–117, ISBN 3-323-00185-0 .

Web links

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personal data
SURNAME Bernthsen, August
BRIEF DESCRIPTION German chemist
DATE OF BIRTH August 29, 1855
PLACE OF BIRTH Krefeld
DATE OF DEATH November 26, 1931
Place of death Heidelberg