Ignatius Gottfried Kaim

Ignatius Gottfried Kaim (* 1746 ; † 1778 ) was an Austrian doctor and chemist of the 18th century .

Kaim was possibly the first to produce (and thus discover) metallic manganese , as he described it in his dissertation De metallis dubiis (German: About dubious metals) published in Vienna in 1770 . The work itself did not have a great influence on the contemporaries (weeks), but the content was briefly reproduced by Pierre-Joseph Macquer in his widespread Dictionnaire de chymie . Then he reduced manganese oxide (brownstone) with carbon (powdered activated charcoal) and obtained a brittle, bluish-white shiny metal, the fragments of which shimmered in all colors. He also stated that the material was iron free.

Because of the minor influence of his publication and the incompleteness of the chemical analysis (since he died early), the Swede Johan Gottlieb Gahn is generally considered to be the discoverer of manganese (1774). He worked with the later famous chemist Carl Wilhelm Scheele .

literature

The discovery of the manganese metal by Ignatius Gottfried Kaim. In: Karl Rumpf: Gmelins Handbook of Inorganic Chemistry : Mangan, Volume 1. 8th edition. Part: system no. 56. Springer, Berlin 1980, ISBN 3-540-93401-4 , pp. 36-42 ( limited preview in the Google book search).
Mary Weeks: Discovery of the Elements. 6th edition. Verlag Journal of Chemical Education, Easton, Pa 1956, p. 169 ( limited preview in Google Book Search).

Web links

Article Kaim in Den Store Dansk, Danish

Individual evidence

↑ According to Constantin von Wurzbach : Biographisches Lexikon des Kaiserthums Oesterreich , Volume 57, Vienna 1889, p. 89 (article about JJ Winterl, wikisource ), the professor, doctor, botanist and chemist Jacob Joseph Winterl is also the author of the book, but what after Radoslav Fundárek, trained as a pharmacist at the Medical Faculty of Nagyszombat University, Comm. Hist. Artis Med., 57-59, 1971, p. 265 is incorrect. It is about Kaim's dissertation, but he was familiar with Winterl's work.

personal data
SURNAME	Kaim, Ignatius Gottfried
BRIEF DESCRIPTION	Austrian chemist
DATE OF BIRTH	1746
DATE OF DEATH	1778

[1] According to Constantin von Wurzbach : Biographisches Lexikon des Kaiserthums Oesterreich , Volume 57, Vienna 1889, p. 89 (article about JJ Winterl, wikisource ), the professor, doctor, botanist and chemist Jacob Joseph Winterl is also the author of the book, but what after Radoslav Fundárek, trained as a pharmacist at the Medical Faculty of Nagyszombat University, Comm. Hist. Artis Med., 57-59, 1971, p. 265 is incorrect. It is about Kaim's dissertation, but he was familiar with Winterl's work.