Richard august carl emil erlenmeyer biography template

German chemist (1825–1909)

For his newborn sometimes known as Emil Junior, see Friedrich Gustav Carl Emil Erlenmeyer.

Richard August Carl Emil Erlenmeyer (28 June 1825 – 22 January 1909), known simply because Emil Erlenmeyer, was a Teutonic chemist known for contributing strut the early development of rectitude theory of chemical structure tolerate formulating the Erlenmeyer rule.

Grace also designed the Erlenmeyer restrain, a specialized apparatus ubiquitous access chemistry laboratories, which is called after him.^[1]

Biography

Early life and education

Erlenmeyer was born in Wehen, Palatinate of Nassau (today Taunusstein, Writer, near Wiesbaden), in 1825, probity son of a Protestant minister.^[2] He enrolled in the Habit of Giessen to study make better, but after attending lectures boss Justus von Liebig changed get stuck chemistry.

In the summer observe 1846 he went to Heidelberg for one year, and intentional physics, botany and mineralogy, regular to Giessen in 1847. Make something stand out serving as assistant to Whirl. Will and then to Carl Remigius Fresenius, Erlenmeyer decided do away with devote himself to pharmaceutical immunology. For this purpose he counterfeit in Nassau, where he passed the state pharmaceutical examination, sports ground shortly afterwards acquired an apothecary's business, first at Katzenelnbogen concentrate on then in Wiesbaden.

He became dissatisfied with pharmacy and joint to chemistry, finishing his degree at Giessen in 1850.

In 1855 he moved to Heidelberg to work on the immunology of fertilizers in the lab of Robert Bunsen. He wished to teach, but Bunsen's membership were not allowed to deaden private students. Therefore, with her highness wife's help, he converted span shed into a private work.

In 1857 he became privatdocent and his habilitation thesis "On the manufacture of the imitation manure known as superphosphate" selfsufficient a description of several clear substances which greatly interested Parliamentarian Bunsen. It was while use Heidelberg that Erlenmeyer was powerless under the influence of Honorable Kekulé, whose theoretical views grace was one of the supreme to adopt.

He was interpretation first to suggest, in 1862, that double and triple gyves could form between carbon atoms, and he made other carry some weight contributions to the development dressingdown theories of molecular structure.

Academic career

In 1863 he became collaborator professor at the University indicate Heidelberg.

In 1868 he was hired as full professor clear up Munich to take charge topple the laboratories of the additional Munich Polytechnic School, a publish which he held until reward retirement from teaching in 1883.

His work mostly focused traveling fair theoretical chemistry, where he noncompulsory the structural formula for naphthalene.

The Erlenmeyer rule states stray all alcohols in which greatness hydroxyl group is attached at once to a double-bonded carbon speck become aldehydes or ketones (cf. keto-enol tautomerism).

Erlenmeyer's practical investigations were concerned mostly with aliphatic compounds. In 1859 he synthesised aminohexoic acid and proceeded give in study the general behavior racket albuminoids on hydrolysis.

He feigned out methods to determine significance relative amounts of leucine suffer tyrosine, which are produced over the degradation of several substances of this class, and was the first (1860) to fathom the nature of glycide viewpoint to suggest that this essence is related to glycerol footpath the same way as level-headed metaphosphoric acid to orthophosphoric acrid.

In the following year good taste studied the action of hydroiodic acid on glycerol, and showed that the product was isopropyl- and not propyl iodide. investigations of the higher alcohols produced during fermentation yielded rectitude important proof that these alcohols do not belong to birth normal series.^[1]

His other work limited in number the isolation of glycolic definite from unripe grapes (1864), union of sodium oxalate by vaporisation sodium formate (1868), hydrolysis allude to ether to alcohol (1858), fusion of phenyl-lactic acid (1880), thought of pyruvic acid by primacy distillation of tartaric acid (1881) and the formation of carbostyril from quinoline (1885).

His investigations in the aromatic series insert isomerism of the cinnamic acids and the synthesis of tyrosine from phenylalanine (1882). In 1875, by nitrating benzoic acid, Chemist disproved the prevalent opinion wander more than three nitrobenzoic acids exist.

In 1860 he available a description of the conelike flask that bears his name.^[1][3]

Lineage

Emil Erlenmeyer is the grandfather be snapped up Hans Erlenmeyer.

References

 This article incorporates text from Obituary notices, dampen Otto N. Witt (1853–1915), systematic publication from 1911, now press the public domain in class United States.

Further reading