WebDefinition. Халоалкан, който съдържа три халогенни атома, напр. йодоформ, CHI3; халоформна реакция е реакция за получаване на халоформи от кетони. In chemistry, the haloform reaction is a chemical reaction in which a haloform (CHX3, where X is a halogen) is produced by the exhaustive halogenation of an acetyl group (R−C(=O)CH3, where R can be either a hydrogen atom, an alkyl or an aryl group), in the presence of a base. The reaction can be … See more In the first step, the halogen dis-proportionates in the presence of hydroxide to give the halide and hypohalite. If a secondary alcohol is present, it is oxidized to a ketone by the hypohalite: If a methyl ketone … See more Laboratory scale This reaction forms the basis of the iodoform test which was commonly used in history as a See more Substrates are broadly limited to methyl ketones and secondary alcohols oxidizable to methyl ketones, such as isopropanol. The only primary alcohol and aldehyde to undergo this reaction are ethanol and acetaldehyde, respectively. 1,3-Diketones such as See more The haloform reaction is one of the oldest organic reactions known. In 1822, Georges-Simon Serullas added potassium metal to a solution of See more
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WebJan 1, 1982 · L'6tude cin6tique de formation du chlor(a- forme a par ailleurs confirm(~ l'extr~me r6activit6 du r6sorcinol vis-;,-vis de la r6action haloforme en milieu neutre. L'6tude r6alis~e fait apparaStre aussi que ie chloro- forme ne repr6sente en fait qu'un produit de chlora- tion possible. Webhaloforme — халоформ (Bulgarian / български) Халоалкан, който съдържа три халогенни атома, напр. йодоформ, CHI3; халоформна реакция е реакция за получаване на халоформи от кетони. night anxiety symptoms
Empirical rate equation for trihalomethane formation
Webhaloforme m (plural haloformes) (organic chemistry) haloform; Further reading “haloforme”, in Trésor de la langue française informatisé [Digitized Treasury of the … Webhaloforme. adj inv (chimie) trihalométhane, composé dans lequel 3 des atomes d'hydrogène de la molécule de méthane ont été substitués par des atomes de chlore, de brome et d'iode. Dictionnaire Français Définition. Ajouter … WebAug 3, 2008 · Réaction haloforme; Usage on hy.wikipedia.org Կարբոնիլային միացություններ ... npp backgrounds pictures png