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Gottfried Osann

Gottfried Wilhelm Osann (26 October 1796, Weimar – 10 August 1866, Würzburg) was a German chemist and physicist. He is known for his work on the chemistry of platinum metals.

Gottfried Wilhelm Osann

He studied natural sciences and became a privatdozent in physics and chemistry at the University of Erlangen in 1819. Between 1821 and 1823, he occupied the same position at the University of Jena. He taught chemistry and medicine at the University of Dorpat (Dorpat, Governorate of Livonia, Russian Empire; today Tartu, Estonia) from 1823 to 1828, from 1828 at the University of Würzburg.

A collaboration with Jöns Jakob Berzelius nearly led to the discovery of ruthenium in 1828. They dissolved platinum ore from the Ural mountains in aqua regia and sifted through the residue. Where Berzelius found nothing, Osann thought he had detected three new metals and named them pluranium (concatenation of platinum and Ural), ruthenium (after Ruthenia, the Latin name for Rus) and polinium (from the Greek word polia, meaning grey-haired, for its residue color; not to be confused with polonium, discovered later).[1][2] However, the quantity of the metals was too small to isolate, and Osann eventually withdrew his discovery claims.[3] It was up to the Russian chemist Karl Klaus to verify their existence, which he did in 1844 by isolating measurable quantities of ruthenium.[4] For this reason, Klaus is usually named as the discoverer of ruthenium rather than Osann.

He was the brother of balneologist Emil Osann (1787-1842) and philologist Friedrich Gotthilf Osann (1794-1858).[5]

Notes edit

  1. ^ Gottfried Osann (1828). "Fortsetzung der Untersuchung des Platins vom Ural". Poggendorffs Annalen der Physik und Chemie (in German). 13: 283–297.
  2. ^ Gottfried Osann (1828). "Fortsetzung der Untersuchung des Platins vom Ural". Poggendorffs Annalen der Physik und Chemie (in German). 14: 329–357.
  3. ^ Gottfried Osann (1829). "Berichtigung, meine Untersuchung des uralschen Platins betreffend". Poggendorffs Annalen der Physik und Chemie (in German). 15: 158.
  4. ^ Pitchkov, V. N. (1996). . Platinum Metals Review. 40 (4): 181–188. Archived from the original on 2011-06-09. Retrieved 2015-05-19.
  5. ^ Goethes Gespräche. Zeno.org Herausgegeben von Woldemar Freiherr von Biedermann, Band 1–10, Leipzig 1889–1896, Band 10.

External links edit

gottfried, osann, polinium, redirects, here, confused, with, polonium, gottfried, wilhelm, osann, october, 1796, weimar, august, 1866, würzburg, german, chemist, physicist, known, work, chemistry, platinum, metals, gottfried, wilhelm, osann, studied, natural, . Polinium redirects here Not to be confused with Polonium Gottfried Wilhelm Osann 26 October 1796 Weimar 10 August 1866 Wurzburg was a German chemist and physicist He is known for his work on the chemistry of platinum metals Gottfried Wilhelm Osann He studied natural sciences and became a privatdozent in physics and chemistry at the University of Erlangen in 1819 Between 1821 and 1823 he occupied the same position at the University of Jena He taught chemistry and medicine at the University of Dorpat Dorpat Governorate of Livonia Russian Empire today Tartu Estonia from 1823 to 1828 from 1828 at the University of Wurzburg A collaboration with Jons Jakob Berzelius nearly led to the discovery of ruthenium in 1828 They dissolved platinum ore from the Ural mountains in aqua regia and sifted through the residue Where Berzelius found nothing Osann thought he had detected three new metals and named them pluranium concatenation of platinum and Ural ruthenium after Ruthenia the Latin name for Rus and polinium from the Greek word polia meaning grey haired for its residue color not to be confused with polonium discovered later 1 2 However the quantity of the metals was too small to isolate and Osann eventually withdrew his discovery claims 3 It was up to the Russian chemist Karl Klaus to verify their existence which he did in 1844 by isolating measurable quantities of ruthenium 4 For this reason Klaus is usually named as the discoverer of ruthenium rather than Osann He was the brother of balneologist Emil Osann 1787 1842 and philologist Friedrich Gotthilf Osann 1794 1858 5 Notes edit Gottfried Osann 1828 Fortsetzung der Untersuchung des Platins vom Ural Poggendorffs Annalen der Physik und Chemie in German 13 283 297 Gottfried Osann 1828 Fortsetzung der Untersuchung des Platins vom Ural Poggendorffs Annalen der Physik und Chemie in German 14 329 357 Gottfried Osann 1829 Berichtigung meine Untersuchung des uralschen Platins betreffend Poggendorffs Annalen der Physik und Chemie in German 15 158 Pitchkov V N 1996 The Discovery of Ruthenium Platinum Metals Review 40 4 181 188 Archived from the original on 2011 06 09 Retrieved 2015 05 19 Goethes Gesprache Zeno org Herausgegeben von Woldemar Freiherr von Biedermann Band 1 10 Leipzig 1889 1896 Band 10 External links editGottfried Wilhelm Osann at Bayerische Staatsbibliothek permanent dead link Retrieved from https en wikipedia org w index php title Gottfried Osann amp oldid 1178953687, wikipedia, wiki, book, books, library,

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