Wurtz); by the action of nitrous acid on aniline; by passing oxygen into boiling benzene containing aluminium chloride (C. Friedel and J.
Wurtz reported the existence of only one efficient laboratory in France, namely the Ecole Normale Superieure, under the direction of H.
Wurtz discovered the amines or substituted ammonias, previously predicted by Liebig; A.
Wurtz, Dictionnaire de chimie, and F.
Wurtz's laboratory, and in 1856, at the instance of H.
Des Cloizeaux (1817-1897) at the Ecole Normale, and in 1876 he became professor of mineralogy at the Sorbonne, but on the death of Wurtz in 1884 he exchanged that position for the chair of organic chemistry.
Friedel was associated with Wurtz in editing the latter's Dictionnaire de chimie, and undertook the supervision of the supplements issued after 1884.
His publications include a Notice sur la vie et les travaux de Wurtz (1885), Cours de chimie organique (1887) and Cours de mineralogie (1893).
Wurtz on boiling methyl isocyanate with caustic potash, CONï¿½ CH3+ 2KHO = CH3NH2+K2C03.
Anschiitz, independently of one another, in troduced "distillation under reduced pressure"; and "fractional distillation" was greatly aided by the columns of Wurtz (1855), E.
The distilling flask has an elongated neck so that Wurtz.
To the first type belongs the simple straight tube, and the Wurtz tube (see fig.
Henry Wurtz in America (1864) and Sir William Crookes in England (1865) made independently the discovery that, by the addition of a small quantity of sodium to the mercury, the operation is much facilitated.
Friedel and Wurtz, and returned to teach at Heidelberg.
CHARLES ADOLPHE WURTZ (1817-1884), French chemist, was born on the 26th of November 1817 at Wolfisheim, near Strassburg, where his father was Lutheran pastor.
The two were united, and Wurtz appointed to the new post.
Wurtz was an honorary member of almost every scientific society in Europe.
Wurtz's first published paper was on hypophosphorous acid (1842), and the continuation of his work on the acids of phosphorus (1845) resulted in the discovery of sulphophosphoric acid and phosphorus oxychloride, as well as of copper hydride.
In 1867 Wurtz prepared neurine synthetically by the action of trimethylamine on glycol-chlorhydrin, and in 1872 he discovered aldol, pointing out its double character as at once an alcohol and an aldehyde.
For twenty-one years (1852-1872) Wurtz published in the Annales de chimie et de physique abstracts of chemical work done out of France.
Wurtz); by boiling a-chlorpropionic acid with caustic alkalis, or with silver oxide and water; by the reduction of pyruvic acid with sodium amalgam; or from acetaldehyde by the cyanhydrin reaction (J.
Phosphoryl trichloride or phosphorus oxychloride, POC1 3, corresponding to phosphoric acid, (HO) 3 P0, discovered in 1847 by Wurtz, may be produced by the action of many substances containing hydroxy groups on the pentachloride; from the trichloride and potassium chlorate; by leaving phosphorus pentoxide in contact with hydrochloric acid: 2P 2 0 5 +3HC1= POC13+3HP03; or by heating the pentachloride and pentoxide under pressure: 3PC15+ P205= 5POC1 3.
Charles Adolphe Wurtz >>
In 1855 Adolph Wurtz had shown that when sodium acted upon alkyl iodides, the alkyl residues combined to form more complex hydrocarbons; Fittig developed this method by showing that a mixture of an aromatic and alkyl haloid, under similar treatment, yielded homologues of benzene.
Of the earlier encyclopaedias we may notice the famous HandwOrterbuch der reinen and angewandten Chemie, edited by Liebig; Fremy's Encyclopedie de chimie, Wurtz's Dictionnaire de chimie pure et applique'e, Watts' Dictionary of Chemistry, and Ladenburg's HandwOrterbuch der Chemie.
Wurtz on boiling methyl isocyanate with caustic potash, CONÃ¯¿½ CH3+ 2KHO = CH3NH2+K2C03.
Cuprous hydride, (CuH) n, was first obtained by Wurtz in 1844, who treated a solution of copper sulphate with hypophosphorous acid, at a temperature not exceeding 70Ã‚° C. According to E.