August Sigmund Frobenius
August Sigmund Frobenius († 1741 ) was an 18th century German chemist who worked in England. He is considered to be the rediscoverer of the " sulfur ether ".
Little is known about Frobenius, the first news about him comes from 1727. He worked in Ambrosius Gottfried Hanckwitz's laboratory in London, as he also published with him - about experiments with urine phosphorus, whose production was based on the method of Hennig Brand Hanckwitz in London business. There he made ether from alcohol and sulfuric acid. He published this in 1729 in the Philosophical Transactions of the Royal Society (with a note from Hanckwitz), but kept the manufacturing process a secret. It was deposited with the Royal Society and was not published until 1741 (by Cromwell Mortimer , immediately after Frobenius' death). At this time, however, others had already discovered the process for themselves, including Georg Ernst Stahl and Friedrich Hoffmann .
He called the diethyl ether Spiritus vini aethereus and thus paved the way for the word "ether". These and other experiments won him admission to the Royal Society . He had a doctorate in medicine.
The process of ether production was already known to Valerius Cordus in 1535, but had been forgotten again. In the first publication of 1729 it is also pointed out by Hanckwitz that the procedure was known to Isaac Newton , who died in 1727.
Fonts
- Frobenius: An Account of a Spiritus Vini Aethereus, Together with Several Experiments Tried Therewith, Phil. Trans. Royal Society, Volume 36, 1729/30, pp. 283-289
Web links
- Albert Ladenburg: Frobenius, August Sigmund . In: Allgemeine Deutsche Biographie (ADB). Volume 8, Duncker & Humblot, Leipzig 1878, p. 125.
- Writings of Frobenius in the Philos. Trans. Royal Society
Individual evidence
- ↑ Also quoted with other first names such as Sigismund
- ^ C. Mortimer, Abstracts of the Original Papers Communicated to the Royal Society by Sigismond Augustus Frobenius, MD concerning His Spiritus Vini Aethereus: Collected by C. Mortimer, MD Secr. RS , Phil. Trans. Royal Society, Vol. 41, 1741, pp. 864-870
- ↑ Mortimer in his report in the Phil. Trans. Roy. Soc. 1741
| personal data | |
|---|---|
| SURNAME | Frobenius, August Sigmund |
| BRIEF DESCRIPTION | German chemist |
| DATE OF BIRTH | 17th century or 18th century |
| DATE OF DEATH | 1741 |