Suchergebnisse
Suchergebnisse:
Vor einem Tag · It was isolated again by Peter Woulfe in 1767, by Carl Wilhelm Scheele in 1770 and by Joseph Priestley in 1773 and was termed by him 'alkaline air'. [21] [67] Eleven years later in 1785, Claude Louis Berthollet ascertained its composition.
Vor 4 Tagen · Complete step by step solution : - Oxygen was discovered by Scheele. The process of discovery of oxygen is as follows. Oxygen was discovered about 1772 by Swedish chemist, Carl William Scheele, who obtained it by heating potassium nitrate, mercuric oxide, and many other substances. An English chemist, Joseph Priestley, independently discovered ...
2. Mai 2024 · Oxygen was discovered about 1772 by a Swedish chemist, Carl Wilhelm Scheele, who obtained it by heating potassium nitrate, mercuric oxide, and many other substances. An English chemist, Joseph Priestley , independently discovered oxygen in 1774 by the thermal decomposition of mercuric oxide and published his findings the same year, three years before Scheele published.
4. Mai 2024 · Carl Wilhelm Scheele, Henry Cavendish, and Joseph Priestley also studied the element at about the same time, and Lavoisier named it in 1775–6. 56 Barium: 1772 W. Scheele 1808 H. Davy Scheele distinguished a new earth in pyrolusite in 1772. He did not name his discovery; Guyton de Morveau suggested barote in 1782.
Vor 5 Tagen · 1779 erhielt Carl Wilhelm Scheele bei der Verseifung von Olivenöl erstmals Glycerin. Michel-Eugène Chevreul konnte im Jahr 1813 nachweisen, dass Fette Ester von Fettsäuren und Glycerin sind und gab dem Alkohol 1823 seinen Namen, abgeleitet von griechisch {{Modul:Vorlage:lang}} Modul:Multilingual:149: attempt to index field 'data' (a nil value) , ‚süß‘.
Vor 2 Tagen · Carl Wilhelm Scheele wrote a description of chlorine gas in 1774, supposing it to be an oxide of a new element. In 1809, chemists suggested that the gas might be a pure element, and this was confirmed by Sir Humphry Davy in 1810, who named it after the Ancient Greek χλωρός ( khlōrós , "pale green") because of its colour.
Vor 5 Tagen · Acetaldehyd wurde wahrscheinlich erstmals im Jahre 1781 von Carl Wilhelm Scheele beim Versuch der Oxidation von Ethanol mit Braunstein in Gegenwart von Schwefelsäure synthetisiert. Die Charakterisierung gelang jedoch erst Justus Liebig in Zusammenarbeit mit Johann Wolfgang Döbereiner im Jahre 1835.
