Uses Of Ni Dmg 2
Posted By admin On 26.05.20Balance the reaction of Ni(NO3)2 + DMG = Ni(DMG)2 + NO3 using this chemical equation balancer! Pour half the nickel ethylene diamine solution into a small hydrometer and add the DMG solution dropwise to form the red precipitate. Hint: Any green precipitate formation is due to Ni(OH)2 precipitate. (Add more ammonia to make it go away.). The structure of nickel dimethyl-glyoxime Ludwig Edward Godycki Iowa State College Follow this and additional works at:Part of thePhysical Chemistry Commons This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University. DMG stands for Dimethylglyoxime. It forms a complex with Nickel which is insoluble and precipitates. Thus, determination of Ni and its quantification can be done by using DMG. DMG can also be used for determination of Bi and Pd. Gravimetric analys. Mar 30, 2009 The decomposition of Ni(dmg) 2 directly to metallic nickel particles, under the present experimental conditions, makes the normally required reducing agents such as H 2 no longer necessary in the formation of phase-pure metallic nickel for catalyzing the CNTs formation.
| Names | |
|---|---|
| IUPAC name nickel;N-[(Z)-3-nitrosobut-2-en-2-yl]hydroxylamine | |
| Other names | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider | |
| EC Number | |
PubChemCID | |
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| Properties | |
| C8H14N4NiO4 | |
| Molar mass | 288.917 g·mol−1 |
| Appearance | red solid |
| Density | 1.698 g/cm3 |
| Hazards | |
| GHS pictograms | |
| GHS Signal word | Warning |
| H315, H317, H319, H335, H351 | |
| P201, P202, P261, P264, P271, P272, P280, P281, P302+352, P304+340, P305+351+338, P308+313, P312, P321, P332+313, P333+313, P337+313, P362, P363, P403+233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Nickel bis(dimethylglyoximate) is the coordination complex with the formula Ni[ONC(CH3)C(CH3)NOH]2. The compound is a bright red solid. It achieved prominence for its use in the qualitative analysis of nickel.[1]
Structure[edit]
Nickel Dimethylglyoxime
Nickel(II) is square planar.[2] It is surrounded by two equivalents of the conjugate base (dmgH−) of dimethylglyoxime (dmgH2). 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.
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The use of dimethylglyoxime as a reagent to detect nickel was reported by L. A. Chugaev in 1905.[3]
Ni Dmg 2 Complex
References[edit]
- ^Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN978-0-08-037941-8.
- ^Donald E. Williams, Gabriele Wohlauer, R. E. Rundle (1959). 'Crystal Structures of Nickel and Palladium Dimethylglyoximes'. J. Am. Chem. Soc. 81: 755–756. doi:10.1021/ja01512a066.CS1 maint: uses authors parameter (link)
- ^Tschugaeff, Lev (1905). 'Über ein neues, empfindliches Reagens auf Nickel' [About a new, sensitive reagent on nickel] (PDF). Berichte der deutschen chemischen Gesellschaft (in German). 38 (3): 2520–2522. doi:10.1002/cber.19050380317.
