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Jean Baptiste André Dumas (French pronunciation: [ʒɑ̃ batist ɑ̃dʁe dyma]; 14 July 1800 – 10 April 1884) was a French chemist, best known for his works on organic analysis and synthesis, as well as the determination of atomic weights (relative atomic masses) and molecular weights by measuring vapor densities.
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Jean-Baptiste Dumas used the terms "physical atoms" and "chemical atoms"; a "physical atom" was a particle that cannot be divided by physical means such as temperature and pressure, and a "chemical atom" was a particle that could not be divided by chemical reactions. [26]
The year 1873, by many accounts, was a seminal point in the history of the development of the concept of the "molecule". In this year, the renowned Scottish physicist James Clerk Maxwell published his famous thirteen page article 'Molecules' in the September issue of Nature. [15] In the opening section to this article, Maxwell clearly states:
Jean-Baptiste Lamarck (1744–1829) – French naturalist, biologist and academic whose theories on evolution preceded those of Darwin; Johann von Lamont (1805–1879) – astronomer and physicist who studied the magnetism of the Earth and was the first to calculate the mass of Uranus
The Dumas method of molecular weight determination was historically a procedure used to determine the molecular weight of an unknown volatile substance. [ 1 ] [ 2 ] The method was designed by the French chemist Jean Baptiste André Dumas , after whom the procedure is now named.
Many chemical syntheses and discoveries were published in Liebigs Annalen.Among these were Robert Bunsen and Gustav Kirchhoff's discovery of caesium and its later isolation by Carl Setterberg, [2] Adolf Windaus' studies on the constitution of cholesterol and vitamins for which he was awarded the 1928 Nobel prize in Chemistry, [3] and many of Georg Wittig's publications, including the ...
Pages in category "Nature Research academic journals" The following 169 pages are in this category, out of 169 total. This list may not reflect recent changes .