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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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In February 1848, Alexandre Dumas (Gérard Depardieu) is at the height of his fame. He has withdrawn for a few days into the immense Château de Monte-Cristo near Le Port-Marly, that he is building. There he works with his collaborator, Auguste Maquet (Benoît Poelvoorde). If the books bear Dumas' name, the tiring work undertaken by Maquet is ...
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Shunned by Dumas, he eked out a living teaching in the mineral engineering lab - where he taught a young Louis Pasteur how to crystalize tartaric acid. Laurent died in Paris from tuberculosis . Alexander Williamson in England read Laurent's writing, leading to the Williamson Ether Synthesis that confirmed the validity of Laurent's approach.
He collaborated with Jean-Baptiste Dumas, and together they discovered the methyl radical during experiments on wood spirit . The terminology "methyl alcohol" was created by both chemists from "wood wine". They also prepared the gaseous dimethyl ether, and many esters.
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.
Title Director Cast Genre Notes 1970: Ananda: Usmar Ismail: Bernapas dalam lumpur: 1971: Beranak Dalam Kubur: Horror: Tuan tanah Kedawung: Awaludin: 1972: Beranak dalam kubur