
	Where results make sense

Topic: August Wilhelm von Hofmann

Related Topics

Aniline

In the News (Wed 10 Feb 10)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	August Wilhelm von Hofmann Biography (1818-1892)
		Hofmann was more of an analyst than a bench chemist--that is, he worked morecomfortably analyzing and interpreting data than physically manipulating substances in experimentation.
		Hofmann also succeeded in producing aniline blue, or diphenylaniline, by replacing hydrogen in rosaniline with aniline.
		Hofmann was a founder of the German Chemical Society and was instrumental instandardizing the nomenclature for alkanes and alkane derivatives.
	www.madehow.com /inventorbios/81/August-Wilhelm-von-Hofmann.html (331 words)

	Altes Chemisches Institut der Universität
		An der Universität Gießen studierte August Wilhelm von Hofmann, den von Liebig betreute und der 1841 promovierte.
		When the chemist, August Wilhelm von Hofmann, received a chair, it was decided to construct an institute for chemistry, which the architect August Dieckhoff built in 1864-67 and in its time was the largest chemistry laboratory in the world.
		From 1845 to 1864, Hofmann was the Director of the Royal College of Chemistry in London; and, around 1853, his assistant, William Henry Perkin, synthesized by accident the first artificial dye, Tyrian purple or mauve aniline dye.
	www.engr.psu.edu /deutschlandsarchitektur/bonn/sonstiges/chem.html (683 words)

	von Baeyer
		Johann Friedrich Wilhelm Adolf von Baeyer was born on October 31, 1835, in Berlin, as the son of Johann Jakob Baeyer and Eugenie née Hitzig.
		With his tenure at Munich came elegant total syntheses of indigo, as well as work on acetylene and polyacetylene, and from this derived the famous Baeyer strain theory of the carbon rings; there were studies of the constitution of benzene as well as comprehensive investigations into cyclic terpene.
		Adolf von Baeyer married Adelheid (Lida) Bendemann in 1868.
	chem-faculty.ucsd.edu /theodorakis/vonbaeyer.html (725 words)

	August Wilhelm von Hofmann - HighBeam Encyclopedia (Site not responding. Last check: 2007-10-11)
		Hofmann, August Wilhelm von, 1818-92, German organic chemist.
		He studied the constitution of aniline and was the first to prepare rosaniline and its derivatives, thereby laying the basis for the aniline dye industry.
		August Adolf Ludwig Follen (1794-1855): political radicalism and literary romanticism in Germany and Switzerland.
	www.encyclopedia.com /doc/1E1-hofmanna1.html (300 words)

	Today in German History
		Von Hofmann was a cofounder of the German Chemical Society and was its president 14 times.
		Von Papen was a member of the Catholic Center Party in the parliament.
		Von Papen then urged the President, von Hindenburg, to appoint Hitler Chancellor with himself as vice chancellor.
	www.germanculture.com.ua /may/may2.htm (1024 words)

	Hofmann
		August Wilhelm Hofmann played a major role in the development and organization of the 19th century chemical profession in both Germany and Great Britain.
		In the field of organic chemistry, Hofmann is best known for his studies of the organic derivatives of ammonia and phosphine and for his subsequent discovery of the Hofmann degradation reaction.
		Hofmann was also the first chemist to popularize the use of the atomic model.
	www.bioanalytical.com /info/calendar/98/12hof.htm (353 words)

	Altes Chemisches Institut der Universität
		Als der Chemiker August Wilhelm von Hofmann einen Lehrstuhl erhielt, wurde beschlossen, ein chemisches Institut zu erbauen, das der Architekt August Dieckhoff 1864-67 errichtete und das seinerzeit das größte chemische Laboratorium der Welt war.
		Vor dem Gebäude steht eine Statue von Justus von Liebig, der an der Universität Bonn studierte.
		Als Doktorvater betreute der berühmte Chemiker Karl Wilhelm Gottlob Kastner den jungen Justus von Liebig, und von Liebig begleitete ihn, als Kastner nach Erlangen umzog, wo von Liebig 1822 promovierte.
	www.courses.psu.edu /nuc_e/nuc_e405_g9c/bonn/chem.html (683 words)

	1827
		Februar: In der Schlacht von Ituzaingo trifft eine Einheit der Brasilianischen Imperialen Armee auf argentinisch-uruguayische Truppen
		Dezember: Friedrich Wilhelm Grimme, deutscher Schriftsteller, Heimatdichter und Botaniker († 1887)
		Oktober: Johann Ludwig Wilhelm Müller, deutscher Dichter (* 1794)
	www.weblexikon.de /1827.html (1327 words)

	familytree
		Hofmann was a professor at the Univ. of Berlin from 1865 and was a founder of the German Chemical Society.
		He studied the constitution of aniline and was the first to prepare rosaniline and its derivatives, providing the basis for the aniline dye industry.
		He also developed the Hofmann method of determinng vapor densities of liquids, and thereby their molecular weights.
	www.boronchemist.com /acadfamilytree.htm (839 words)

	William Perkin Summary
		Although Hofmann was a brilliant chemist, he was awkward with laboratory work and depended on talented assistants to help him in his research on coal tar and its derivatives.
		Hofmann had published a theory on how it might be possible to synthesize quinine, an expensive natural product in much demand for the treatment of malaria.
		During the Easter break in 1856, when Hofmann had returned for a visit to his native Germany, Perkin tried some further experiments in his crude laboratory in his apartment on the top floor of his home in Cable Street in East London.
	www.bookrags.com /William_Perkin (1789 words)

	August Wilhelm von Hofmann
		Not intending originally to devote himself to physical science, he first took up the study of law and philology at Göttingen, and the general culture he thus gained stood him in good stead when he turned to chemistry, the study of which he began under Justus Liebig.
		In leaving England, of which he used to speak as his adopted country, Hofmann was probably influenced by a combination of causes.
		That city possesses a permanent memorial to his name in Hofmann House, the home of the German Chemical Society (of which he was the founder), which was formally opened in 1900, appropriately enough with an account of that great triumph of German chemical enterprise, the industrial manufacture of synthetical indigo.
	www.nndb.com /people/808/000103499 (644 words)

	August Wilhelm von Hofmann — Infoplease.com
		He studied the constitution of aniline and was the first to prepare rosaniline and its derivatives, thereby laying the basis for the aniline dye industry.
		Wilhelm Loehe in the context of the nineteenth century.
		August Adolf Ludwig Follen (1794-1855): political radicalism and literary romanticism in Germany and Switzerland.
	www.infoplease.com /ce6/people/A0823913.html (187 words)

	Silk Circa 1840: Dorner Paper
		At the same time, Hofmann determined that the principal components of magenta were homorosaniline, rosaniline, and toluidine.
		Hofmann later developed a violet in 1853, which was followed by Girard Violet Imperial in 1860.
		Friedrich August Kekulé von Stradonitz, a German chemist, formulated the cyclohexatiene form of benzene, which explained the aromatic character of benzene in terms of oscillating bonds.
	www.smith.edu /hsc/silk/papers/dorner.html (1379 words)

	Synthetic Organic Chemistry
		Hofmann had done research on chemicals obtained from coal tar (a thick, fl liquid obtained by heating coal in the absence of air), and he wondered whether it was possible to synthesize quinine from a coal tar chemical like aniline.
		Had he or Hofmann known more of the structure of the quinine molecule, they would have known the task was impossible to mid-nineteenth century techniques.
		Hofmann returned to Germany in 1864 and there threw himself into the new work of synthetic organic chemistry his young pupil had opened.
	www.3rd1000.com /history/synorg.htm (4973 words)

	August Wilhelm von Hofmann - Wikipedia, the free encyclopedia
		His perception of the analogy between it and ammonia led to his famous work on the amines and ammonium bases and the allied organic phosphorus compounds while his researches on rosaniline, which he first prepared, formed the first of a series of investigations on coloring matter which only ended with quinoline red in 1887.
		Hofmann was also the first to introduce molecular models into his public lectures around 1860, following the earlier (1855) suggestion by his colleague William Odling that carbon is tetravalent.
		This legacy is still remembered nowadays by continuing use of Hofmann's colour scheme: (nitrogen = blue, oxygen = red, chlorine = green, sulfur = yellow, hydrogen = white, as cited by W. Ollis, "Models and molecules", Proceedings of the Royal Institution of Great Britain, (1972), 45, 1-31).
	en.wikipedia.org /wiki/August_Wilhelm_von_Hofmann (539 words)

	1842
		Dezember: Der Vertrag von Nanking beendet den ersten Opiumkrieg
		August: Gustav von Görtz, österreichisch-ungarischer Generalmajor und Kämmerer († 1903)
		August: Josef Riehl, österreichischer Ingenieur, maßgeblich an der Erschließung Tirols beteiligt († 1917)
	www.weblexikon.de /1842.html (1125 words)

	Frederick Augustus Abel Summary
		Born in Woolwich, near London, Abel studied under August Wilhelm von Hofmann (1818-1892), an enormously influential experimental and industrial scientist, at the Royal College of Chemistry.
		von Hofmann at the Royal College of Chemistry, then became professor of chemistry at the Royal Military Academy in 1851, and three years later was appointed chemist to the War Department and chemical referee to the government.
		It was superseded in August 1879 by the much more reliable Abel close-test instrument.
	www.bookrags.com /Frederick_Augustus_Abel (755 words)

	Gordon W. Gribble's Academic Genealogy, Dolby,Noyce, Doering, Linstead, Kon, Thorpe... Pelope, Rocabonela, Elisaius...
		Karl Friedrich Wilhelm Gottlob Kastner, 1783 - 1857
		The gathering of this information was begun by Frank Switzer and further augmented by William von Eggers Doering (private communication).
		A good deal of information prior to Hofmann was taken with permission from the Chemical Genealogy Database.
	www.dartmouth.edu /~gwgchem/genealogy3.html (327 words)

	William Crookes
		Crookes, Sir William 1832-1919, man of science, was born in London 17 June 1832, the eldest son of Joseph Crookes, a tailor of north-country origin, by his second wife, Mary Scott.
		He received some instruction at a grammar school at Chippenham, but his scientific career began when, at the age of fifteen, he entered the Royal College of Chemistry in Hanover Square, London, under August Wilhelm von Hofmann.
		From 1850 to 1854 he filled the position of assistant in the college, and soon embarked upon original work, not indeed in the region of organic chemistry whither the inspiration of his distinguished teacher might have been expected to lead him, but on certain new compounds of the element selenium, the selenocyanides.
	www.chem.ox.ac.uk /icl/heyes/LanthAct/Biogs/Crookes.html (1549 words)

	August Wilhelm von Hofmann - Wikipedia
		Hofmann studierte ab 1836 in Gießen Chemie bei Justus von Liebig, wurde dessen Assistent, promovierte 1843 bei ihm und ging nach seiner Habilitation 1845 als Privatdozent für Chemie an die Universität Bonn.
		Er lehrte zwar allgemeine organische Chemie, aber in der Forschung widmete er sich vor allem den Aminen und den sich vom Anilin ableitenden Farbstoffen.
		Nach Hofmann sind der Hofmann-Zersetzungsapparat und der Hofmann-Abbau von Carbonsäureamiden benannt.
	de.wikipedia.org /wiki/August_Wilhelm_von_Hofmann (300 words)

	AllRefer.com - August Wilhelm von Hofmann (Chemistry, Biography) - Encyclopedia
		You are here : AllRefer.com > Reference > Encyclopedia > Chemistry, Biographies > August Wilhelm von Hofmann
		August Wilhelm von Hofmann[ou´goost vil´helm fun hOf´mAn] Pronunciation Key, 1818–92, German organic chemist.
		More articles from AllRefer Reference on August Wilhelm von Hofmann
	reference.allrefer.com /encyclopedia/H/HofmannA.html (210 words)

	Chemist's Biographies
		Associated with the Hofmann reaction (and various other double-barreled reactions), Hofmann degradation (sometimes mistakenly given to the unrelated Hofmann reaction), Hofmann primary amine test (carbylamine reaction), Hofmann rule, Hofmann's violet, Hofmann method of vapour densities, and the Hofmann voltammeter, which is surely more than enough for one person, even one as ambitious as AW.
		Born in Buffalo and studied chemistry at Heidelberg under Robert Bunsen (1811-1899) and at Berlin under August Wilhelm Hofmann (1818-1892).
		Born in Neustadt in the Palatinate and was educated at the University of Würzburg and Munich Polytechnic.
	www.chem.qmul.ac.uk /rschg/biog.html (7520 words)

	Radiant Matter
		His early school years were spent at a grammar school in Chippenham, but his study of science began at 15 when he entered the Royal College of Chemistry in Hanover Square, London.
		There he studied under organic chemistry professor, August Wilhelm von Hofmann and held the position of assistant from 1850 to 1854.
		That year, he took a position as superintendent of the meteorological department at the Radcliffe Observatory in Oxford and in 1855 was appointed lecturer in chemistry at the Chester training college.
	www.tfcbooks.com /mall/more/315rm.htm (428 words)

	Science and Society Picture Library - Search
		Adolf von Baeyer, German organic chemist, late 19th century.
		August Wilhelm von Hofmann, German organic chemist, late 19th century.
		Carl von Graebe, German organic chemist, early 20th century.
	www.scienceandsociety.co.uk /results.asp?txtkeys1=Dye (126 words)

	Gesellschaft Deutscher Chemiker e. V., GDCh - August-Wilhelm-von-Hofmann-Denkmünze
		Die Auszeichnung ist nicht mit einem Geldbetrag verbunden.
		Die August-Wilhelm-von-Hofmann-Denkmünze ist eine Goldmedaille mit einem Durchmesser von 5 cm, auf deren Rückseite der Name des Preisträgers und das Verleihungsjahr eingraviert werden.
		Hofmann (1818-1892) an den Gründer und langjährigen Präsidenten der Deutschen Chemischen Gesellschaft, der zuvor 20 Jahre lang äußerst erfolgreich in England wirkte und auch dort Präsident der chemischen Gesellschaft war.
	www.gdch.de /gdch/eps/preise/awvh_dm.htm (71 words)

	The Scripps Research Institute - News and Views (Site not responding. Last check: 2007-10-11)
		For instance, in 1865 German chemist August Wilhelm von Hofmann lectured to the Royal Society in London using croquet balls to demonstrate how various atoms combine to form simple organic compounds.
		Hofmann used fl balls to represent carbon because carbon soot is fl; he used red balls to represent oxygen because fire, which requires oxygen, is red; and he used blue balls to represent nitrogen since nitrogen was known to be a primary component of the atmosphere—the blue sky.
		This arbitrary use of colors to represent different atoms worked, said Olson, and we are still using it.
	www.scripps.edu /newsandviews/e_20030811/print-siggraph.html (791 words)

	Science and Society Picture Library - Search (Site not responding. Last check: 2007-10-11)
		Photograph of Hofmann (1818-1892) who became the first director of the Royal College of Chemistry in London in 1845.
		Hofmann later became professor of chemistry in Berlin in 1865, and he founded the German Chemical Society in 1868.
		Keywords: 19th Century, Aniline, Aniline dyes, August, August Wilhelm Hofmann, August Wilhelm von Hofmann, Chemistry, Chemists, Chemist, College, Dye, Dyeing, Dyes, German, Germany, Hofmann, Hofmann, August Wilhelm von, Industrial Revolution (1780-18, Man, Men, Organic, Organic chemists, Pioneers, Portrait, Portraits, Royal, Royal College of Chemistry, Unattributed, Victorian, Von, Wilhelm
	www.scienceandsociety.co.uk /results.asp?image=10401345 (122 words)

	Hier finden Sie Infos zum Thema jenseits von eden.
		Hier finden Sie Infos zum Thema jenseits von eden.
		In dieser Situation ist es wichtig, Hilfe von kompetenter Seite zu bekommen.
		Sie finden hier Informationen, die Ihnen helfen werden, ein geeignetes Unternehmen zu finden und auch das Preis-Leistungs-Verhältnis zu vergleichen.
	www.jenseits-von-eden.de (157 words)

Try your search on: Qwika (all wikis)