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Théophile-Jules Pelouze (also known as Jules Pelouze, Théophile Pelouze, Theo Pelouze, or T. J. Pelouze, ; 26 February 180731 May 1867) was a French
chemist A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe th ...
.


Life

He was born at
Valognes Valognes () is a commune in the Manche department in Normandy in north-western France. Geography Valognes is situated in the Cotentin Peninsula, southeast of Cherbourg. Valognes station has rail connections to Caen, Paris and Cherbourg. History ...
, and died in Paris. His father, Edmond Pelouze, was an industrial chemist and the author of several technical handbooks. The son, after spending some time in a pharmacy at
La Fère La Fère () is a commune in the Aisne department in Hauts-de-France in France. Population See also * Communes of the Aisne department The following is a list of the 799 Communes of France, communes in the French Departments of France, de ...
acted as laboratory assistant to
Gay-Lussac Joseph Louis Gay-Lussac (, , ; 6 December 1778 – 9 May 1850) was a French chemist and physicist. He is known mostly for his discovery that water is made of two parts hydrogen and one part oxygen (with Alexander von Humboldt), for two laws ...
and
Jean Louis Lassaigne Jean Louis Lassaigne (22 September 1800 – 18 March 1859) was a French chemist. He is best known for the sodium fusion test named after him. Early life Lassaigne was born in Paris. Initially he worked in the laboratory of Louis Nicolas Vauquelin, ...
at Paris from 1827 to 1829. In 1830 he was appointed associate professor of chemistry at
Lille Lille ( , ; nl, Rijsel ; pcd, Lile; vls, Rysel) is a city in the northern part of France, in French Flanders. On the river Deûle, near France's border with Belgium, it is the capital of the Hauts-de-France Regions of France, region, the Pref ...
, but returning to Paris next year became ''repetiteur'', and subsequently professor at the
École polytechnique École may refer to: * an elementary school in the French educational stages normally followed by secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing in région Île-de-France * École, Savoi ...
. He also held the chair of chemistry at the
Collège de France The Collège de France (), formerly known as the ''Collège Royal'' or as the ''Collège impérial'' founded in 1530 by François I, is a higher education and research establishment (''grand établissement'') in France. It is located in Paris ne ...
, and in 1833 became assayer to the mint and in 1848 president of the ''Commission des Monnaies''. After the coup d'état in 1851 he resigned his appointments, but continued to conduct an experimental laboratory-school he had started in 1846. There he worked with the explosive material
guncotton Nitrocellulose (also known as cellulose nitrate, flash paper, flash cotton, guncotton, pyroxylin and flash string, depending on form) is a highly flammable compound formed by nitrating cellulose through exposure to a mixture of nitric acid and ...
and other nitrosulphates. His student
Ascanio Sobrero Ascanio Sobrero (12 October 1812 – 26 May 1888) was an Italian chemist, born in Casale Monferrato. He was studying under Théophile-Jules Pelouze at the University of Turin, who had worked with the explosive material guncotton. He studied me ...
was the discoverer of
nitroglycerin Nitroglycerin (NG), (alternative spelling of nitroglycerine) also known as trinitroglycerin (TNG), nitro, glyceryl trinitrate (GTN), or 1,2,3-trinitroxypropane, is a dense, colorless, oily, explosive liquid most commonly produced by nitrating g ...
(1847), and another student,
Alfred Nobel Alfred Bernhard Nobel ( , ; 21 October 1833 – 10 December 1896) was a Swedes, Swedish chemist, engineer, inventor, businessman, and Philanthropy, philanthropist. He is best known for having bequeathed his fortune to establish the Nobel ...
, was to take that discovery on to great heights in the form of commercial explosives including
dynamite Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells or clay), and Stabilizer (chemistry), stabilizers. It was invented by the Swedish people, Swedish chemist and engineer Alfred Nobel in Geesthacht, Northern Germa ...
. He was a major inspiration for both students. Though Pelouze made no discovery of outstanding importance, he was a busy investigator, his work including researches on
salicin Salicin is an alcoholic β-glucoside. Salicin is produced in (and named after) willow (''Salix'') bark. It is a biosynthetic precursor to salicylaldehyde. Medicinal aspects Salicin is found in the bark of and leaves of willows, poplars and va ...
, on beetroot sugar, on various organic acids ( gallic, malic, tartaric, butyric, lactic, etc.), on oenanthic ether (with Liebig), on the nitrosulphates, on guncotton, and on the composition and manufacture of glass. He also carried out determinations of the
atomic weight Relative atomic mass (symbol: ''A''; sometimes abbreviated RAM or r.a.m.), also known by the deprecated synonym atomic weight, is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a giv ...
s of several elements, and with E. Fremy, published ''Traité de chimie générale'' (1847–1850); ''Abrégé de chimie'' (1848); and ''Notions générales de chimie'' (1853). His son Eugène-Philippe Pelouze married , a rich heiress, in 1857. The couple purchased the
Château de Chenonceau The Château de Chenonceau () is a French château spanning the river Cher, near the small village of Chenonceaux, Indre-et-Loire, Centre-Val de Loire. It is one of the best-known châteaux of the Loire Valley. The estate of Chenonceau is firs ...
in 1864. Marguerite continued to live there until 1888, when she ran out of money and was forced to sell.James David Draper; Edouard Papet (2014). ''The Passions of Jean-Baptiste Carpeaux''
p. 226–227
Yale University Press. .
His name is one of the 72 names inscribed on the Eiffel Tower.


References


External links

* {{DEFAULTSORT:Pelouze, Theophile-Jules 1807 births 1867 deaths People from Manche 19th-century French chemists Burials at Montmartre Cemetery Commandeurs of the Légion d'honneur Members of the French Academy of Sciences