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ECHA InfoCard | 100.002.201 |
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Properties | |
C4H8N2O2 | |
Molar mass | 116.120 g·mol−1 |
Appearance | White/Off White Powder |
Density | 1.37 g/cm3 |
Melting point | 240 to 241 °C (464 to 466 °F; 513 to 514 K) |
Boiling point | decomposes |
low | |
Structure | |
0 | |
Hazards | |
Main hazards | Toxic, Skin/Eye Irritant |
Safety data sheet | External MSDS |
GHS pictograms | |
GHS Signal word | Danger |
H228, H301 | |
P210, P240, P241, P264, P270, P280, P301+310, P321, P330, P370+378, P405, P501 | |
NFPA 704 (fire diamond) | |
Related compounds | |
Hydroxylamine salicylaldoxime | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
verify (what is ?) | |
Infobox references |
Dimethylglyoxime is a chemical compound described by the formula CH3C(NOH)C(NOH)CH3. Its abbreviation is dmgH2 for neutral form, and dmgH for anionic form, where H stands for hydrogen. This colourless solid is the dioxime derivative of the diketone butane-2,3-dione (also known as diacetyl). DmgH2 is used in the analysis of palladium or nickel. Its coordination complexes are of theoretical interest as models for enzymes and as catalysts. Many related ligands can be prepared from other diketones, e.g. benzil.
![Nickel Nickel](/uploads/1/2/5/6/125687373/374010387.jpg)
Refining of Palladium and making its salt. A discussion started in 2003 but continuing through 2019. Dear Sir, I recover palladium from dragouts by electrolytic method, as a result this palladium contains traces of nickel, copper and Iron. Kindly suggest how to refine this palladium and convert to 'di nitro di amine palladium' salt.
Preparation[edit]
Dimethylglyoxime can be prepared from butanone first by reaction with ethyl nitrite to give biacetyl monoxime. The second oxime is installed using sodium hydroxylamine monosulfonate:[1]
Complexes[edit]
Dimethylglyoxime is used to detect and quantify nickel, which forms the bright red complex nickel bis(dimethylglyoximate) (Ni(dmgH)2). The reaction was discovered by L. A. Chugaev in 1905.[2]
Cobalt complexes have also received much attention. In chloro(pyridine)cobaloxime[3] the macrocycle [dmgH]22− mimics the macrocyclic ligand found in vitamin B12.
Structure of chloro(pyridine)cobaloxime.
References[edit]
- ^Semon, W. L.; Damerell, V. R. (1930). 'Dimethylglyoxime'. Organic Syntheses. 10: 22. doi:10.15227/orgsyn.010.0022.CS1 maint: multiple names: authors list (link)
- ^Lev Tschugaeff (1905). 'Über ein neues, empfindliches Reagens auf Nickel'. Berichte der Deutschen Chemischen Gesellschaft. 38 (3): 2520–2522. doi:10.1002/cber.19050380317.
- ^Girolami, G.. S.; Rauchfuss, T.B.; Angelici, R. J. (1999). Synthesis and Technique in Inorganic Chemistry: A Laboratory Manual (3rd ed.). pp. 213–215.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Dimethylglyoxime&oldid=922963518'
DMG may refer to:
- 1Organizations
Organizations[edit]
Entertainment[edit]
- Dames Making Games, a Canadian non-profit organization that encourages the participation of women, non-binary, femme and queer people in the creation of video games
- Davidson Media Group, an American radio station holding company
- Diamante Music Group, a former American music record label distributor
- Disney Music Group, a record label group
- DMG Entertainment, a Chinese-based film production and distribution company
- DMG Nashville, a brand of Hollywood Records
- DMG Radio Australia, owner of the Nova and Classic Rock radio networks
- DMG TV, part of the British record label Demon Music Group
Other organizations[edit]
- Daily Mail and General Trust, an international media company
- Daimler Motoren Gesellschaft (now Daimler AG), an early German automobile manufacturer
- Deckel Maho Gildemeister, earlier name of DMG Mori Aktiengesellschaft, a German engineering company
- Deutsche Morgenländische Gesellschaft (German Oriental Society), organization that studies Asia and the Orient
- District Management Group, an elite cadre of the Civil Service of Pakistan, now known as the Pakistan Administrative Service
- DMG interpersonal, a club for Charities in Germany
- DMG Media, a national newspaper and website publisher in the UK
- DMG Mori Seiki Co., a Japanese tools manufacturing company
- D.M.G. Grupo Holding S.A., a Colombian company disbanded under the suspicion of money laundering
Science and technology[edit]
- Dimethylglycine, a derivative of the amino acid glycine
- Dimethylglyoxime, an organic chemical used in analysis as a precipitant for palladium or nickel
- Direct metalation group, the target of directed ortho metalation
- Dot Matrix Game, the official product code for the original Game Boy handheld video game system
- .dmg file, the Apple Disk Image, a file format used in the macOS computer operating system
Other uses[edit]
![Dmg Palladium Nickel Gold Dmg Palladium Nickel Gold](/uploads/1/2/5/6/125687373/838001167.jpg)
- Decoration for Merit in Gold, a South African military decoration
- DMG (rapper), a rapper from Saint Paul, Minnesota
- DMG 90, an edition of the Holden Commodore
- Dungeon Master's Guide, a rulebook for the game Dungeons & Dragons
- ISO 639:dmg or Kinabatangan language, a language of Malaysia
Retrieved from 'https://en.wikipedia.org/w/index.php?title=DMG&oldid=920459888'