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Chromium trioxide is generated by treating sodium dichromate with sulfuric acid: [6]. H 2 SO 4 + Na 2 Cr 2 O 7 → 2 CrO 3 + Na 2 SO 4 + H 2 O. Approximately 100,000 tonnes are produced annually by this or similar routes.
For oxidations to the aldehydes and ketones, two equivalents of chromic acid oxidize three equivalents of the alcohol: 2 HCrO 4 − + 3 RR'C(OH)H + 8 H + + 4 H 2 O → 2 [Cr(H 2 O) 6] 3+ + 3 RR'CO. For oxidation of primary alcohols to carboxylic acids, 4 equivalents of chromic acid oxidize 3 equivalents of the alcohol. The aldehyde is an ...
The complex is produced by treating chromium trioxide with pyridine. [2] The complex is diamagnetic. According to X-ray crystallography, the complex is 5-coordinate with mutually trans pyridine ligands.
Alcohol oxidation is a collection of oxidation reactions in organic chemistry that convert alcohols to aldehydes, ketones, carboxylic acids, and esters. The reaction mainly applies to primary and secondary alcohols. Secondary alcohols form ketones, while primary alcohols form aldehydes or carboxylic acids. [1] A variety of oxidants can be used.
Periodic Videos (also known as The Periodic Table of Videos) is a video project and YouTube channel on chemistry. It consists of a series of videos about chemical elements and the periodic table , with additional videos on other topics in chemistry and related fields.
A reaction video, or a react video, [1] is a video in which one or more persons react to something. Videos showing the emotional reactions, criticism or commentary of people viewing movies, television series episodes, film trailers, music videos, news, or other media are numerous and popular on online video hosting services such as YouTube and ...
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The stronger the reducing agent, the more violent the reaction. [9] It has also been used to promote the oxidation of alcohols and thiols . Ammonium dichromate, in the presence of Mg(HSO 4 ) 2 and wet SiO 2 can act as a very efficient reagent for the oxidative coupling of thiols under solvent free conditions.