Wohler and W.
WOhler and H.
345), that only compounds containing two carbon atoms yielded fulminates, points to (Hcno) 2; on the other hand, Wohler (loc. cit.
Wohler at GÃ¶ttingen in 1836, by R.
These two works, and especially the latter, were the models followed by Thenard, Liebig, Strecker, Wohler and many others, including Thomas Graham, upon whose Elements of Chemistry was founded Otto's famous Lehrbuch der Chemie, to which H.
WOhler in 1827.
The preparation of crystalline boron in 1856 by Wohler and Sainte Claire Deville showed that this element also existed in allotropic forms, amorphous boron having been obtained simultaneously and independently in 1809 by Gay Lussac and Davy.
But he fought in a futile cause; to explain the facts put forward by Dumas he had to invent intricate and involved hypotheses, which, it must be said, did not meet with general acceptance; Liebig seceded from him, and invited Wohler to endeavour to correct him.
Wohler, Die Mineralanalyse in Beispielen (1861).
Wohler, he investigated the allotropic forms of silicon and boron.
Wohler, Ann., 1856, 97, p. 266; 1857, 102, p. 382); by heating silica with magnesium in the presence of zinc (L.
Wohler, and it became necessary to admit them to be two bodies which differed in properties, though of the same percentage composition.
A continuation of their work on bitter almond oil by Liebig and Wohler, who remained firm friends for the rest of their lives, resulted in the elucidation of the mode of formation of that substance and in the discovery of the ferment emulsin as well as the recognition of the first glucoside, amygdalin, while another and not less important and far-reaching inquiry in 'which they collaborated was that on uric acid, published in 1837.
A certain impetuousness of character which disposed him to rush into controversy whenever doubt was cast upon the views he supported accounted for a great deal of writing, and he also carried on an extensive correspondence with Wohler and other scientific men.
This view had currency until 1849, when Wohler showed that the crystals are a compound, Ti(CN)2.3T13N2, of a cyanide and a nitride of the metal.
Wohler first made calcium carbide, and found that water decomposed it into lime and acetylene.
Wohler, repeated by Johann Bauschinger, Sir B.
Wohler reduced the sesquioxide by zinc, and obtained a shining green powder of specific gravity 6.81, which tarnished in air and dissolved in hydrochloric acid and warm dilute sulphuric acid, but was unacted upon by concentrated nitric acid.
Aluminium chloride, AlC1 3, was first prepared by Oersted, who heated a mixture of carbon and alumina in a current of chlorine, a method subsequently improved by Wohler, Bunsen, Deville and others.
FRIEDRICH WOHLER (1800-1882), German chemist, was born at Eschersheim, near Frankfort-on-the-Main., on the 31st of July, 1800.
Wohler had made the acquaintance of Liebig, his junior by three years, in 1825, and the two men remained close friends and allies for the rest of their lives.
By the same method as had succeeded with aluminium (reduction of the chloride by potassium) Wohler in 1828 obtained metallic beryllium and yttrium.
When Wohler, in 1825, analysed his cyanic acid, and Liebig his quite different fulminic acid in 1824, the composition of both compounds proved to be absolutely the same, containing each in round numbers 28% of carbon, 33% of nitrogen, 37% of oxygen and 2% of hydrogen.
Wohler by the reduction of the chloride with potassium, and in 1855 H.
Wohler, Ann., 1838, 26, s p. 276), or of alloxantin (A.
The sodium compound was first obtained by Wohler on reducing sodium tungstate with hydrogen; coal-gas, zinc, iron or tin also effect the reduction.