Erik Liebreich

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Erik Liebreich (also Liebreich-Landolt , born September 28, 1884 in Berlin , † November 24, 1946 in Berlin), was a German electrochemist . He created the basics of chrome plating technology .

Life

Erik Liebreich was born as the son of pharmacologist Oskar Liebreich and his wife Anna Margareta Maria. Landolt was born on September 28, 1884 at Ahornallee 44 in Berlin-Charlottenburg . The maternal grandfather was the chemist Hans Heinrich Landolt , and the paternal uncle was the ophthalmologist Richard Liebreich . Erik Liebreich studied physics and chemistry in Berlin, Strasbourg and Munich, but also law, medicine and mechanical engineering. Finally he turned to chemistry. He received his doctorate in 1910 at the Technical University of Charlottenburg under Heinrich Rubens . Later he was a private assistant, first to Rubens, then to Arthur Wehnelt at the Friedrich-Wilhelms-Universität Berlin . From 1916 he worked as an assistant at the University's Physics Institute. In 1923 he became a research assistant and in 1932 deputy head of the department for metal chemistry and metal protection at the Chemisch-Technische Reichsanstalt . At the same time he taught electrochemistry as a private lecturer at the Technical University. In 1924 Liebreich married Dorothea Schmidt-Clusius. In 1933 he was dismissed under the law to restore the civil service . He then worked in industry, including at the electrochemical works in Bitterfeld , the Langbein-Pfanhauser works in Leipzig and Siemens & Halske . In 1945 he returned to the Technical University of Berlin.

plant

After completing his doctorate, Liebreich dealt with questions of corrosion . He developed anti-rust paints and founded the Dr. Liebreich GmbH in Reinickendorf . In 1914 he described the area comprehensively in his monograph Rust and Rust Protection .

From 1919 he turned to electroplating . In 1920 he found the basics of chrome plating technology. The classic chrome bath is based on his patent DRP 398054 from 1920, which he then further developed for Elektro-Chrom-Gesellschaft mbH Berlin . His patent DRP 448526 from 1924 is considered the key patent for chrome plating. After the establishment of the chrome interest group in 1928, the economic importance of chrome plating rose sharply. In 1932 there were already 1,400 chrome plants in Germany.

Fonts (selection)

  • Erik Liebreich: Change of the refraction exponents with the temperature in the ultra-red in rock salt, sylvine and fluorite , inaugural dissertation, 1910
  • Erik Liebreich: Rust and rust protection , Vieweg, Braunschweig 1914
  • Emil Maaß, Erik Liebreich: On the question of the corrosion of metals . In: Angew. Chem. 37, 1924, pp. 897-899

literature

Individual evidence

  1. ↑ wrongly referred to on the birth register entry until 1904 as "Erich"
  2. ↑ see birth register entry of the StA Charlottenburg No. 1084/1884
  3. ↑ Patent DE398054 : Process for the electrolytic deposition of metallic chromium. Registered on March 9, 1920 , published on July 1, 1924 , applicant: Erik Liebreich. ‌
  4. ↑ Patent DE448526 : Process for producing a solution suitable for the electrolytic deposition of metallic chromium. Registered on July 22, 1924 , published on July 28, 1927 , applicant: Elektro-Chrom-Gesellschaft mbH Berlin. ‌
  5. ↑ H. Leuze, S. Leuze-Reichert, TW Jelinek: From the beginnings of electroplating . In: Electroplating. Volume 93, 2002, pp. 70-92.

Web links

personal data
SURNAME Liebreich, Erik
ALTERNATIVE NAMES Liebreich-Landolt, Erik
BRIEF DESCRIPTION German chemist
DATE OF BIRTH September 28, 1884
PLACE OF BIRTH Berlin
DATE OF DEATH November 24, 1946
Place of death Berlin