Posted  by 

Dmg Nroth

  1. Dmg North Hvac
Dimethylglyoxime
Names
IUPAC name
Other names
  • Dimethylglyoxime
  • Diacetyl dioxime
  • Butane-2,3-dioxime
  • Chugaev's reagent
Identifiers
  • 95-45-4
ChEMBL
ChemSpider
  • 10606175
ECHA InfoCard100.002.201
EC Number
PubChemCID
RTECS number
  • EK2975000
UNII
  • InChI=1S/C4H8N2O2/c1-3(5-7)4(2)6-8/h7-8H,1-2H3/b5-3-,6-4+
  • InChI=1/C4H8N2O2/c1-3(5-7)4(2)6-8/h7-8H,1-2H3/b5-3-,6-4+
  • CC(=NO)C(C)=NO
Properties
C4H8N2O2
Molar mass116.120 g·mol−1
AppearanceWhite/Off White Powder
Density1.37 g/cm3
Melting point 240 to 241 °C (464 to 466 °F; 513 to 514 K)
Boiling pointdecomposes
low
Structure
0
Hazards
Main hazardsToxic, Skin/Eye Irritant
Safety data sheetExternal MSDS
GHS pictograms
GHS Signal wordDanger
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

DMG Reno works closely with consulting engineers, contractors, developers and facility engineers/owners, assisting in the design, selection and purchase of top quality equipment. The DMG Reno office covers the northern half of Nevada, including Carson City, Reno and Elko. DMG North represents over 30 leading manufacturers of for applied and commercials HVAC products. As a manufacturer's representative we employee a team of experienced sales engineers and service technicians to deliver projects from early design to successful. DMG North is a manufacturers’ representative for custom engineered, high quality Heating, Ventilating and Air Conditioning (HVAC) equipment. Since opening our Northern California offices in 1988, we've worked closely with consulting engineers, contractors, developers and facility engineers/owners, in the design, selection and purchase of top quality equipment. Provides innovative engineering solutions for your HVAC needs. Since 1967, DMG offers its clients personalized engineering support and project management, and has worked closely with the building owner, mechanical engineer, mechanical contractor, architect, and acoustician on the design, selection, delivery, commissioning and training of mechanical equipment.

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.

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]

Dmg north inc

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.
Air

References[edit]

  1. ^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)
  2. ^Lev Tschugaeff (1905). 'Über ein neues, empfindliches Reagens auf Nickel'. Berichte der Deutschen Chemischen Gesellschaft. 38 (3): 2520–2522. doi:10.1002/cber.19050380317.
  3. ^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'

Davis Manufacturing

DMG MORI is proud of its manufacturing capabilities in the United States.

Download VLC Media Player for Mac Download the.DMG installer file. Go to the 'Download Files' and open the setup of 'VLC Media Player.DMG'. Drag and drop the VLC file from the 'Download' folder to 'Application' folder. This will copy the VLC Media Player in the Application folder. Double click. VLC is a free and open source cross-platform multimedia player and framework that plays most multimedia files, and various streaming protocols. Download VLC VLC.app dmg package. VLC Media Player for Linux Play audio and video files in real-time and streaming modes. Vlc media player download mac. Installing in Mac OS X. Download VLC installation file from the location mentioned above (VideoLAN website). Locate the downloaded file which will be named something like vlc-2.1.0.dmg Open the file. After verifying the contents of the file, it will open. Click and drag the VLC icon to the applications folder.

Our Davis, California campus consists of both our U.S. factory and DMG MORI’s American Research and Development hub, which allows us to be closer to our North American customers. The extensive use of automation combined with our highly skilled workforce make Davis one of the most advanced factories in the world.

Dmg North Hvac

As one of our valued customers, you will have the opportunity to see how our machines are built from the ground up. Take a closer look at our machining, quality assurance, assembly processes, and a fierce belief in utilizing our own machines and automation systems as an integral part of our factory. The DMC 340 U, three NHX 10000’s, and two NH 6300 DCGII, each with pallet pool systems and automation, have been built using our own products. Our fully-automated line also includes robot loaders and washing stations custom-built into our LPP systems.