Paul Julius

obituary

Paul Julius (born October 14, 1862 in Liesing (Vienna) , † January 9, 1931 in Heidelberg ) was an Austrian chemist.

Julius was the son of the chemist Hermann Julius and studied chemistry at the Technical University of Vienna, where he was already involved in the synthesis of dyes, and in Basel, where he received his doctorate in 1886 with Rudolf Nietzki with a dissertation on dyes. Then he was in the editorial department of the magazine Die Chemische Industrie in Berlin. In 1888 he went to the main laboratory of BASF , where he became department head and director of the main laboratory. From 1906 he had power of attorney and in 1915 he became a member of the board. In 1926 he retired.

He founded the chemistry of organic azo pigments, with Lithol Red R (1899) synthesized by him as the first representative. He was the first to synthesize I-acid (sometimes called J-acid after him) and used it to produce a number of azo dyes for dyeing cotton.

His tables of synthetic dyes with Gustav Schultz were widely used .

He was an honorary doctor at the technical universities in Vienna and Karlsruhe. He was also a numismatist .

Fonts

• The Artificial Organic Dyes, 1887
• with Gustav Schultz : Tabular overview of the artificial organic dyes on the market . Berlin 1888, 3rd edition, Berlin 1897 ( archive )
  • English edition: Arthur G. Green: A systematic survey of the organic coloring matters . Macmillan, 2nd edition, London 1908 Archives

literature

• Winfried R. Pötsch (lead), Annelore Fischer, Wolfgang Müller: Lexicon of important chemists , Harri Deutsch 1989, p. 226
• Helmut Pfitzner:  Julius, Paul. In: New German Biography (NDB). Volume 10, Duncker & Humblot, Berlin 1974, ISBN 3-428-00191-5 , p. 658 ( digitized version ).
• Obituary by KH Meyer in Reports of the German Chemical Society 64, A49 – A57 (1931) .