Klaproth was the leading chemist of his time in Germany.
In the investigation of these relations, the physicist and chemist meet on common ground; this union has been attended by fruitful and far-reaching results, and the correlation of physical properties and chemical composition is one of the most important ramifications of physical chemistry.
KARL REMIGIUS FRESENIUS (1818-1897), German chemist, was born at Frankfort-on-Main on the 28th of December 1818.
ADOLPHE WILHELM HERMANN KOLBE (1818-1884), German chemist, was born on the 27th of September 1818 at Elliehausen, near GÃ¶ttingen, where in 1838 he began to study chemistry under F.
The second examination qualifies for registration as a chemist and druggist.
MARCELLIN PIERRE EUGENE BERTHELOT (1827-1907), French chemist and politician, was born at Paris on the 29th of October 1827, being the son of a doctor.
Industrial chemistry makes many claims upon the chemist, for it is necessary to determine the purity of a product before it can be valued.
There is also a public library, with 20,000 volumes, and various scientific collections, and a public garden, with a statue of the chemist Berthollet (1748-1822), who was born not far off.
MARTIN HEINRICH KLAPROTH (1743-1817), German chemist, was born at Wernigerode on the 1st of December 1743.
In the 19th century the word chymist became altered to chemist, although the original spelling is still continued to a small extent.
He prepared a new edition of the monk Theophilus's celebrated treatise, Diversarum artium schedula, and for several years devoted his Saturday mornings to laboratory research with the chemist Aline Girard at the Conservatoire des Arts et Metiers, the results of which were utilized by Marcellin Berthelot in the first volume (1894) of his Chimie au moyen dge.
But it seems pretty clear that if there is any change in weight consequent on chemical change, it is too minute to be of im- portance to the chemist, though the methods of modern physics may settle the question.
They began to make alkali by the ammonia-soda process, under licence from the Belgian chemist, Ernest Solvay, but at first the venture threatened to prove a failure.
"WILLIAM ODLING (1829-1921), English chemist, was born in Southwark Sept.
JEREMIAS BENJAMIN RICHTER (1762-1807), German chemist, was born at Hirschberg in Silesia on the 10th of March 1762, became a mining official at Breslau in 1794, and in 1800 was appointed assessor to the department of mines and chemist to the royal porcelain factory at Berlin, where he died on the 4th of April 1807.
HEINRICH GUSTAV MAGNUS (1802-1870), German chemist and physicist, was born at Berlin on the 2nd of May 1802.
Berzelius, and somewhat later, in the experiments of the Belgian chemist J.
Still no explanation of this singular fact was forthcoming, and it was reserved for the young chemist from FrancheComte to solve a problem which had baffled the greatest chemists and physicists of the time.
HERMANN VON FEHLING (1812-1885), German chemist, was born at Lubeck on the 9th of June 1885.
SAMUEL MORISON BROWN (1817-1856), Scottish chemist, poet and essayist, born at Haddington on the 23rd of February 1817, was the fourth son of Samuel Brown, the founder of itinerating libraries, and grandson of John Brown, author of the Self-Interpreting Bible.
Dalton, who was a mathematical physicist even more than a chemist, had given much thought to the study of gases.
LOUIS NICOLAS VAUQUELIN (1763-1829), French chemist, was born at Saint-Andre-d'Hebertot in Normandy on the 16th of May 1763.
Though an alchemist, Boyle, in his Sceptical Chemist (1661), cast doubts on the " experiments whereby vulgar Spagyrists are wont to endeavour to evince their salt, sulphur and mercury to be the true principles of things," and advanced towards the conception of chemical elements as those constituents of matter which cannot be further decomposed.
JULIUS LOTHAR MEYER (1830-1895), German chemist, was born on the 19th of August 1830, at Varel in Oldenburg.
SIR WILLIAM RAMSAY (1852-), British chemist, nephew of Sir A.
Ebonite takes a fine polish, and is valuable to the electrician on account of its insulating properties, and to the chemist and photographer because vessels made of it are unaffected by most chemical reagents.
SIR WILLIAM CROOKES (1832-), English chemist and physicist, was born in London on the 17th of June 1832, and studied chemistry at the Royal College of Chemistry under A.
ETIENNE HENRI SAINTE-CLAIRE DEVILLE (1818-1881), French chemist, was born on the 11th of March 1818 in the island of St Thomas, West Indies, where his father was French consul.
WILLIAM HYDE WOLLASTON (1766-1828), English chemist and natural philosopher, was born at East Dereham, Norfolk, on the 6th of April 1766, the second of seventeen children.
FRIEDEL, CHARLES (1832-1899), French chemist and mineralogist, was born at Strassburg on the 12th of March 1832.
LUDWIG MOND (1839-1909), British chemist, was born at Cassel in Germany on the 7th of March 1839.
LOUIS PASTEUR (1822-1895), French chemist, was born, on the 27th of December 1822, at Dole, Franche-Comte, where his father carried on the business of a tanner.
VINCENZO DANDOLO, Count (1758-1819), Italian chemist and agriculturist, was born at Venice, of good family, though not of the same house as the famous doges, and began his career as a physician.
JOSEPH PRIESTLEY (1733-1804), English chemist and Nonconformist minister, was born on the 13th of March 1733 at Fieldhead, a hamlet near Birstal in the West Riding of Yorkshire.
CHRISTIAN FRIEDRICH SCHONBEIN (1799-1868), chemist, was born at Metzingen, Swabia, on the 18th of October 1799, and died at Sauersberg, near Baden Baden, on the 29th of August 1868.
In his Sceptical Chemist (1662) he freely criticized the prevailing scientific views and methods, with the object of showing that true knowledge could only be gained by the logical application of the principles of experiment and deduction.
Under certain conditions, as when latex is allowed to stand or is centrifugalized, a cream is obtained consisting of the liquid globules, which may be washed free from proteid without change, but, either by mechanical agitation or by the addition of acid or other chemical agent, the liquid gradually solidifies to a mass of solid caoutchouc. The phenomenon therefore resembles the change known to the chemist as polymerization, by which through molecular aggregation a liquid may pass into a solid without change in its empirical composition.
In the same address he called attention to the conditions of the world's food supply, urging that with the low yield at present realized per acre the supply of wheat would within a comparatively short time cease to be equal to the demand caused by increasing population, and that since nitrogenous manures are essential for an increase in the yield, the hope of averting starvation, as regards those races for whom wheat is a staple food, depended on the ability of the chemist to find an artificial method for fixing the nitrogen of the air.
Richard Chevenix (1774-1830), a chemist, having bought some of the substance, decided after experiment that it was not a simple body as claimed, but an alloy of mercury with platinum, and in 1803 presented a paper to the Royal Society setting forth this view.
JEAN CHARLES GALISSARD DE MARIGNAC (1817-1894), Swiss chemist, was born at Geneva on the 24th of April 1817.
Stas, the purpose of testing Prout's hypothesis, but he remained more disposed than the Belgian chemist to consider the possibility that it may have some degree of validity.
LIEBIG, JUSTUS VON, Baron (1803-1873), German chemist, was born at Darmstadt, according to his baptismal certificate, on the 12th of May 1803 (4th of May, according to his mother).
No laboratories were accessible to ordinary students, who had to content themselves with what the universities could give in the lectureroom and the library, and though both at Bonn and Erlangen Liebig endeavoured to make up for the deficiencies of the official instruction by founding a students' physical and chemical society for the discussion of new discoveries and speculations, he felt that he could never become a chemist in his own country.
CHARLES GILES BRIDLE DAUBENY (1795-1867), English chemist, botanist and geologist, was the third son of the Rev. James Daubeny, and was born at Stratton in Gloucestershire on the II th of February 1795.
And the elector Maximilian I., the obelisk erected to the 30,000 Bavarians who perished in Napoleon's expedition to Moscow, the Wittelsbach fountain (1895), the monument commemorative of the peace of 1871, and the marble statue of Justus Liebig, the chemist, set up in 1883.
The small discrepancies found are so easily accounted for by attributing them to experimental errors that, until recently, every chemist would have regarded the law as sufficiently verified.
Dr Natterer, the chemist of the " Pola " expeditions, has expressed the opinion that the poverty of the pelagic fauna is solely due to the want of circulation in the depths.
SVANTE AUGUST ARRHENIUS (1859-), Swedish physicist and chemist, was born on the 19th of February 1859, at Schloss Wijk, near Upsala.
The third, or major examination, which qualifies for registration as a pharmaceutical chemist, is not, like the minor, a compulsory one, but ranks as an honours examination.
LOUIS JACQUES THENARD (1777-1857), French chemist, was born on the 4th of May 1777 at Louptiere, near Nogentsur-Seine, Aube.
Carried out by the Swedish chemist, Torbern Bergman, acting under the impulse of Linnaeus, and by the German philosopher, Immanuel Kant.
ALEXANDER WILLIAM WILLIAMSON (1824-1904), English chemist, was born at Wandsworth, London, on the 1st of May 18 24.
The result of this decision was that any chemist who failed to pass the qualifying examination could constitute himself with a few others, even if ignorant of pharmacy, into a limited liability company, which would then have been outside the powers of the act, and not subject to its provisions.
For example, the physicist determines the density, elasticity, hardness, electrical and thermal conductivity, thermal expansion, &c.; the chemist, on the other hand, investigates changes in composition, such as may be effected by an electric current, by heat, or when two or more substances are mixed.