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Dimethylglyoxime is a chemical compound described by the formula CH 3 C(NOH)C(NOH)CH 3. Its abbreviation is dmgH 2 for neutral form, and dmgH − for anionic form, where H stands for hydrogen. This colourless solid is the di oxime derivative of the di ketone butane-2,3-dione (also known as diacetyl ).
It is surrounded by two equivalents of the conjugate base (dmgH −) of dimethylglyoxime (dmgH 2). The pair of organic ligands are joined through hydrogen bonds to give a macrocyclic ligand. The complex is distinctively colored and insoluble leading to its use as a chelating agent in the gravimetric analysis of nickel.
The cobaloxime is slowly decomposed by acids and bases. With acids, the products of decomposition are dimethylglyoxime, cobalt salts, and pyridine; with bases, derivatives of other cobaloximes are formed, usually with the release of chloride ions. The complex has no reaction with hydrogen gas, and cannot carry oxygen as salcomine does.
Dimethylglyoxime (dmgH 2) is a reagent for the analysis of nickel and a popular ligand in its own right. In the typical reaction, a metal reacts with two equivalents of dmgH 2 concomitant with ionization of one proton. Salicylaldoxime is a chelator in hydrometallurgy. [20]
An example SDS, including guidance for handling a hazardous substance and information on its composition and properties. A safety data sheet (SDS), [1] material safety data sheet (MSDS), or product safety data sheet (PSDS) is a document that lists information relating to occupational safety and health for the use of various substances and products.
Dimethylglyoxime; HA-966; N-Nitrosomorpholine This page was last edited on 31 January 2024, at 01:08 (UTC). Text is available under the Creative Commons Attribution ...
It is an intermediate in the preparation of dimethylglyoxime: [2] Uses
Tris(bipyridine)ruthenium(II) chloride is the chloride salt coordination complex with the formula [Ru(bpy) 3]Cl 2.This polypyridine complex is a red crystalline salt obtained as the hexahydrate, although all of the properties of interest are in the cation [Ru(bpy) 3] 2+, which has received much attention because of its distinctive optical properties.