- Berthelot reaction
- the reaction of ammonia with Berthelot reagent to form phenol-indophenol, a stable, deep blue product; used in colorimetric methods for ammonia and urea.
Medical dictionary. 2011.
Berthelot reaction
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Berthelot reaction (reagent) — Ber·the·lot reaction (reagent) (bār tə loґ) [Pierre Eugиne Marcellin Berthelot, French chemist, 1827–1907] see under reaction … Medical dictionary
Berthelot reagent — an alkaline solution of phenol and hypochlorite, used in the Berthelot reaction … Medical dictionary
BERTHELOT (M.) — Comblée d’honneurs, la carrière de Berthelot se développe dans l’âge du positivisme bourgeois, dont il demeure l’une des figures les plus écrasantes. Pontife du scientisme conquérant, il a exercé en France, à la fin de sa vie, un magistère… … Encyclopédie Universelle
Berthelot, Pierre-Eugène-Marcellin — ▪ French chemist Introduction born Oct. 27, 1827, Paris, France died March 18, 1907, Paris French organic and physical chemist, science historian, and government official. His creative thought and work significantly influenced the development of … Universalium
Berthelot , Pierre Eugène Marcellin — (1827–1907) French chemist The Parisian born son of a doctor, Berthelot studied medicine at the Collège de France but became interested in chemistry, becoming assistant to Antoine Jérôme Balard in 1851. He was professor of organic chemistry at… … Scientists
Berthelot, Marcelin — (1827 1907) chemist, political figure Born in Paris and educated at the collège de france, Marcelin Berthelot received a doctorate in 1854 with a thesis on the nature of fats, glycerin, and polyhydric alcohols. In 1856, he synthesized… … France. A reference guide from Renaissance to the Present
reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… … Medical dictionary
Berthelot, (Pierre-Eugène-) Marcellin — born Oct. 27, 1827, Paris, France died March 18, 1907, Paris French chemist. The first professor of organic chemistry at the Collège de France (from 1865), he later also held high government offices, including that of foreign minister (1895–96).… … Universalium
Berthelot — Pierre Eugene Marcellin, French chemist, 1827–1907. See B. reaction … Medical dictionary
Marcellin Berthelot — Pour les articles homonymes, voir Berthelot. Ne doit pas être confondu avec l homme politique du XXe siècle Marcelin Berthelot Pierre Eugène Marcellin Berthelot … Wikipédia en Français
