They usually take the form of cast iron open stoves fitted with a number of Bunsen burners which heat perforated lumps of asbestos.
After studying at Marburg under Hermann Kolbe and at Heidelberg under Robert Bunsen, he came to England in 1862 and obtained a position in a chemical works at Widnes, where he elaborated the practical application of a method he had devised for recovering the sulphur lost as calcium sulphide in the black ash waste of the Leblanc alkali process.
In 1849 we find him studying chemistry under Bunsen at Marburg, where his love for astronomy was revived by Gerling's lectures.
Bunsen), it melts at 310-320° C. and boils between 763-772° C. (T.
Mit Bunsen (Leipzig, 1873); Die deutschen Mackie and der Fiirstenbund.
Bunsen held the chair of chemistry.
Bunsen at Marburg in 1840, and by O.
Berzelius was an early worker in this field; he was succeeded by Bunsen, and Deville and Debray, who worked out the separation of rhodium; and at a later date by P. T.
Bunsen and A.
Bunsen, the discoverer of the cacodyl compounds.
At the same time, however, the conception of radicals could not be entirely displaced, for the researches of Liebig and Welder, and those made subsequently by Bunsen, demonstrated beyond all doubt the advantages which would accrue from their correct recognition.
16, p. 382) were afterwards perfected by Robert Wilhelm Bunsen and Gustav Merz.
And of iodine and sulphurous acid to the estimation of copper and many other substances by Robert Wilhelm Bunsen, marks an epoch in the early history of volumetric analysis.
Hold a small portion of the substance moistened with hydrochloric acid on a clean platinum wire in the fusion zone' of the Bunsen burner, and note any colour imparted to the flame.
These reactions are practised in the following manner: A thread of asbestos is moistened and then dipped in the substance to be tested; it is then placed in the luminous point of the Bunsen flame, and a small porcelain basin containing cold water placed immediately over the asbestos.
Beilstein determines their presence by heating the substance with pure copper oxide on a platinum wire in the Bunsen flame; a green coloration is observed if halogens be present.
Before taking up residence in his parish he once more went abroad, and made in Rome the acquaintance of the Chevalier Bunsen, who afterwards dedicated to him part of his work, Hippolytus and his Age.
Bunsen (Ann., 1866, 137, p. I); A.
A long tour in Italy in 1828 was the beginning of his intimacy with Bunsen and did much to develop his knowledge of art and love of antiquity.
In concert with his friend Bunsen he laboured to bring about a rapprochement between the Lutheran and Anglican churches, the first-fruits of which was the establishment of the Jerusalem bishopric under the joint patronage of Great Britain and Prussia; but the only result of his efforts was to precipitate the secession of J.
And Bunsen were edited by Ranke (Leipzig, 18 73); his proclamations, speeches, &c., from the 6th of March 1848 to the 31st of May 1851 have been published (Berlin, 1851); also his correspondence with Bettina von Arnim, Bettina von Arnim and Friedrich Wilhelm IV., ungedruckte Briefe and Aktenstiicke, ed.
Von Bunsen at Marburg, and three years later to Lyon Playfair at London.
From 1847 to 1851 he was engaged at Brunswick in editing the Dictionary of Chemistry started by Liebig, but in the latter year he went to Marburg as successor to Bunsen in the chair of chemistry.
Bunsen, and this process subsequently received much attention at the hands of Moissan and Borchers.
Two years later Bunsen and H.
Strontium salts may be recognized by the characteristic crimson colour they impart to the flame of the Bunsen burner and by the precipitation of the insoluble sulphate.
In April 1833 occurred what is known as the Frankfort Insurrection (Frankfurter Attentat), in which a number of insurgents led by Georg Bunsen attempted to break up the diet.
Bunsen, Berlin Acad.
Bunsen, the best source of rubidium and caesium salts is the residue left after extraction of lithium salts from lepidolite.
Bunsen, Ann., 1862, 122, p. 347; 1863, 125, p. 367).
Before the commercial production of calcium carbide made it one of the most easily obtainable gases, the processes which were most largely adopted for its preparation in laboratories were: - first, the decomposition of ethylene bromide by dropping it slowly into a boiling solution of alcoholic potash, and purifying the evolved gas from the volatile bromethylene by washing it through a second flask containing a boiling solution of alcoholic potash, or by passing it over moderately heated soda lime; and, second, the more ordinarily adopted process of passing the products of incomplete combustion from a Bunsen burner, the flame of which had struck back, through an ammoniacal solution of cuprous chloride, when the red copper acetylide was produced.
In 1885 he was chosen to succeed Hans Hubner (1837-1884) in the professorship of chemistry at GÃ¶ttingen, where stereochemical questions especially engaged his attention; and in 1889, on the resignation of his old master, Bunsen, he was appointed to the chair of chemistry in Heidelberg.
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.
Von Schlegel, the diplomatist Christian Karl von Bunsen, Robert Schumann, Karl Simrock, E.
Bunsen, in 1852, electrolysed fused magnesium chloride in a porcelain crucible.
In the ordinary laboratory the Bunsen flame has become universal, and a number of substances, such as the salts of the alkalis and alkaline earths, show characteristic spectra when suitably placed in it.
Gouy, who forced the air before it entered the Bunsen burner, through a spray produce containing a salt in solution.
By this method even such metals as iron and copper may be made to show some of their characteristic lines in the Bunsen burner.
If a short length of platinum wire be inserted vertically into a lighted Bunsen burner the luminous line may be used as a slit and viewed directly through a prism.
(a) When a sodium salt is placed in a Bunsen burner in sufficient quantity, the yellow lines are widened.
Young, according to which the dark line observed in the centre of each component of the sodium doublet in a Bunsen burner is transparent to a radiation placed behind.