|
Léon-Albert Arnaud
Léon-Albert Arnaud (15 February 1853 – 27 March 1915) was a French chemist born in Paris. From 1872 he worked as an assistant in the laboratory of Michel Eugène Chevreul (1786–1889) at the ''Muséum national d'histoire naturelle''. In 1883 he succeeded François Stanislas Cloez (1817–1883) as ''aide-naturaliste'', and from 1890 to 1915 was chair of applied organic chemistry at the museum. Arnaud was the first scientist to describe the chemical make-up of tariric acid, an extraction from the glucoside of the " tariri plant" found in Guatemala. He is also credited with isolating tanghinine, taken from '' Tanghinia venenifera''; (family Apocynaceae), and in 1883 discovered a new alkaloid Alkaloids are a class of basic, naturally occurring organic compounds that contain at least one nitrogen atom. This group also includes some related compounds with neutral and even weakly acidic properties. Some synthetic compounds of similar ... called cinchonamine. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1886 - Albert Arnaud By Nadar
Events January–March * January 1 – Upper Burma is formally annexed to British Burma, following its conquest in the Third Anglo-Burmese War of November 1885. * January 5– 9 – Robert Louis Stevenson's novella '' Strange Case of Dr Jekyll and Mr Hyde'' is published in New York and London. * January 16 – A resolution is passed in the German Parliament to condemn the Prussian deportations, the politically motivated mass expulsion of ethnic Poles and Jews from Prussia, initiated by Otto von Bismarck. * January 18 – Modern field hockey is born with the formation of The Hockey Association in England. * January 29 – Karl Benz patents the first successful gasoline-driven automobile, the Benz Patent-Motorwagen (built in 1885). * February 6– 9 – Seattle riot of 1886: Anti-Chinese sentiments result in riots in Seattle, Washington. * February 8 – The West End Riots following a popular meeting in Trafalgar Square, London. * Februar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
