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Topic: Adolph Wilhelm Hermann Kolbe


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In the News (Sun 15 Nov 09)

  
  Adolph Wilhelm Hermann Kolbe
Adolph Wilhelm Hermann Kolbe (September 27, 1818 - November 25, 1884) was a chemist.
Kolbe was born in Elliehausen near Hanover, Germany.
Kolbe believed that organic compounds could be derived from inorganic ones, directly or indirectly, by substitution processes.
www.ebroadcast.com.au /lookup/encyclopedia/ad/Adolph_Wilhelm_Hermann_Kolbe.html   (276 words)

  
 Adolph Wilhelm Hermann Kolbe - Cleverpedia, the ultimate encyclopedia   (Site not responding. Last check: 2007-10-20)
Adolph William Hermann Kolbe (* 27 September 1818 in Elliehausen, today an urban district of Goettingen; † 25 November 1884 in Leipzig) was a German chemist.
Kolbe followed Bunsen in Marburg and went 1865 to the University of Leipzig.
Kolbe was convinced that organic compounds from inorganic can be won directly or indirectly by substitution procedures.
cleverpedia.com /Adolph_Wilhelm_Hermann_Kolbe   (349 words)

  
 Kolbe, Adolph Wilhelm Hermann
Kolbe studied with Friedrich Wöhler and Robert Bunsen and after 1845 spent 2 years in London with Lyon Playfair.
As one of the best experimentors of his time he conducted research of the reaction of carbon disulphide and chlorine, the synthesis of acetic acid from inorganic matter, the transformation of alcohols into carboxylic acids and the synthesis of salicylic acid.
Relying on the fact that many organic compounds are derivatives of carbonic acid Kolbe professed a type theory of his own making while rejecting Jacobus Henricus van 't Hoff´s and Achille Le Bel´s tetrahedron model of carbon.
www.euchems.org /Distinguished/19thCentury/kolbeadolph.asp   (108 words)

  
 Adolph Wilhelm Hermann Kolbe Summary
Adolf Wilhelm Hermann Kolbe was born in Göttingen, Germany.
Kolbe returned to Marburg with Frankland and began publishing their research results.
Kolbe also studied the effects of galvanic current on organic compounds and succeeded in producing ethane from fatty acid salts.
www.bookrags.com /Adolph_Wilhelm_Hermann_Kolbe   (603 words)

  
 BlurtIt: What is Kolbe’s Reaction?
The Kolbe reaction is better known as Kolbe-Schmitt reaction/Kolbe process.
Adolph Wilhelm Hermann Kolbe was a chemist born in Germany.
After studying chemistry with Friedrich Wohler he joined as assistance to Robert Wilhelm Bunsen at the University of Marburg in the year 1842.
www.blurtit.com /q466572.html   (215 words)

  
 Adolph Wilhelm Hermann Kolbe - Wikipedia
Kolbe besuchte ab 1831 das Gymnasium in Göttingen.
Kolbe folgte Bunsen in Marburg nach und ging 1865 an die Universität Leipzig.
Kolbe war überzeugt, dass organische Verbindungen aus anorganischen direkt oder indirekt durch Substitutionsverfahren gewonnen werden können.
de.wikipedia.org /wiki/Adolph_Wilhelm_Hermann_Kolbe   (302 words)

  
 Carbon Chemistry
In 1845, for instance, Adolph Wilhelm Hermann Kolbe (1818-1884), a pupil of Wohler's, succeeded in synthesizing acetic acid, an indubitably organic substance.
Furthermore, he synthesized it by a method which showed that a clear line of chemical change could be drawn from the constituent elements, carbon, hydrogen, and oxygen, to the final product, acetic acid.
With Berthelot, crossing the line from inorganic to organic ceased to be a thrilling intrusion upon the "forbidden", and became purely routine.
www.3rd1000.com /history/carbon.htm   (3125 words)

  
 HOS: Biology and the Origin of Life   (Site not responding. Last check: 2007-10-20)
In 1959, two German scientists Wilhelm Groth and H. von Weyssenhoff, designed an experiment in which ultraviolet light could be used instead, and they also got amino acids.
If there was any doubt that the direction-toward-life was the line of least resistance, there was the fact that, in the late 1960s, more and more complicated molecules, representing the first stages of that direction, were found in gas clouds of outer space.
The German physiologist, Karl Friedrich Wilhelm Ludwig (1816-1895) was educated at the universities of Erlangen and Marburg and received his first professorial appointment at the latter school in 1846.
www.rit.edu /~flwstv/biology.html   (19672 words)

  
 Muck and Magic or Change and Progress: vitalism versus Hamiltonian matter-of-fact knowledge.(David Hamilton ) - ...
Like Hamilton's mystic potencies, vital qualities are strictly in the eye of the beholder.
In 1845, one of Woehler's students, Adolph Wilhelm Hermann Kolbe (1818-1884), accomplished the first synthesis of an organic compound (acetic acid) from its elements.
To Sidney Toby (2000), "the death-knell of vitalism in chemistry was sounded." In England, scientists like Sir Humphrey Davy were demonstrating the importance of minerals for the human body and the illnesses that result from their deficiency.
goliath.ecnext.com /coms2/summary_0199-2558644_ITM   (1319 words)

  
 Education Resources » Chemistry Terms
If it starts from a product isolated from plants or animals and then proceeds to a new compounds, the synthesis is described as a semisynthetic process.
The word synthesis in the present day meaning was first used by the chemist Adolph Wilhelm Hermann Kolbe.
The other meaning of chemical synthesis is narrow and restricted to a specific kind of chemical reaction, a direct combination reaction, in which two or more reactants combine to form a single product.
www.thecatalyst.org /resource/category/chemistry-terms/page/2   (6755 words)

  
 ACSH > Health Issues >
Wide acceptance of this discovery has enabled better nourishment of human-kind—despite that humans number more than six times what they did before the discovery.
In 1845, one of Wöhler's students—Adolph Wilhelm Hermann Kolbe (1818-1884)—accomplished the first synthesis of an organic compound (acetic acid) from its elements.
Hermann Rauschning (1887-1961) was the mayor of the seaport Danzig (now Gdansk, Poland) before he immigrated to Switzerland, in 1936, and defected to the Allies.
www.acsh.org /healthissues/newsID.604/healthissue_detail.asp   (4360 words)

  
 HERMANN KOLBE Articles from AMAZINES.COM - The Article Database and EZine Publishers Database
HERMANN KOLBE Articles from AMAZINES.COM - The Article Database and EZine Publishers Database
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