Names | |
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IUPAC name nickel;N-[(Z)-3-nitrosobut-2-en-2-yl]hydroxylamine | |
Other names | |
Identifiers | |
3D model (JSmol) | |
ChemSpider | |
EC Number | |
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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 |
Start with the mass of Ni (DMG)2 2. Convert to mole Ni (DMG)2 (DMG = C4H6 (NOH)2) 3. By stochiometry, determine the mole Ni2+. Use the equation above. The mole ratio of Ni2+ to Ni (DMG) is 1:1. Convert Ni2+ to mass Ni2+ 5.% Ni in ore = mass Ni2+/mass ore x 100.
- Enter your answer to 2 decimal placesA solid sample of a complex salt, with ideal composition Ni(NH3)6(NO3)2, was analyzed for nickel by dissolution in slightly acidic solution and precipitation as the dimethylglyoximate, Ni(DMG)2. A sintered glass crucible of mass 14.1564 g.
- Its abbreviation is dmgH 2 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). DmgH 2 is used in the analysis of palladium or nickel. Its coordination complexes are of theoretical interest as models for enzymes and as catalysts.
- To complete this calculation, you have to know what substance you are trying to convert. The reason is that the molar mass of the substance affects the conversion. This site explains how to find molar mass. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight.
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]
Ni Dmg 2 Molar Mass
Structure[edit]
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.
Download r on mac. The use of dimethylglyoxime as a reagent to detect nickel was reported by L. A. Chugaev in 1905.[3]
https://newbear973.weebly.com/os-x-1011-download-dmg.html. Jan 24, 2018 OS X 10.11 El Capitan torrent download! Very shortly, in the following words, we show 2 methods to download and get Mac OS X 10.11 El Capitan.DMG, then convert El Capitan.DMG to El Capitan.ISO (available solutions in both Mac OS X and Windows).
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)
- ^Lev Tschugaeff (1905). 'Über ein neues, empfindliches Reagens auf Nickel'. Berichte der deutschen chemischen Gesellschaft. 38 (3): 2520–2522. doi:10.1002/cber.19050380317.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Nickel_bis(dimethylglyoximate)&oldid=879626005'
Names | |
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Systematic IUPAC name | |
Identifiers | |
3D model (JSmol) |
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ECHA InfoCard | 100.006.147 |
EC Number | |
PubChemCID | |
CompTox Dashboard(EPA) | |
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Properties | |
C4H6NiO4 | |
Molar mass | 176.781 g·mol−1 |
Appearance | Green Solid |
Odor | slight acetic acid |
Density | 1.798 g/cm3 (anhydrous) 1.744 g/cm3 (tetrahydrate) |
Melting point | decomposes when heated [1][2] |
Easily soluble in cold water, hot water | |
Solubility | Soluble in methanol insoluble in diethyl ether, n-octanol |
+4,690.0·10−6 cm3/mol | |
Structure | |
monoclinic | |
P21/c | |
α = 90°, β = 93.6°, γ = 90°[3] | |
Lattice volume (V) | 471.5 |
2 | |
distorted octahedral | |
Hazards | |
NFPA 704 (fire diamond) | |
Lethal dose or concentration (LD, LC): | |
350 mg/kg (rat, oral) 410 mg/kg (mouse, oral)[4] | |
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 |
Nickel(II) acetate is the name for the coordination compounds with the formula Ni(CH3CO2)2·x H2O where x can be 0, 2, and 4. The green tetrahydrate Ni(CH3CO2)2·4 H2O is most common. It is used for electroplating.
Synthesis and structure[edit]
Molar Mass Of Ni Dmg 2
The compound can be prepared by treating nickel or nickel(II) carbonate with acetic acid:
- NiCO3 + 2 CH3CO2H + 3 H2O → Ni(CH3CO2)2·4 H2O + CO2
The green tetrahydrate has been shown by X-ray crystallography to adopt an octahedral structure, the central nickel centre being coordinated by four water molecules and two acetate ligands.[5] It may be dehydrated in vacuo, by reaction with acetic anhydride,[6] or by heat.[7]
Safety[edit]
Nickel salts are carcinogenic and irritate the skin.
References[edit]
Massa Molar Ni(dmg)2
- ^M. A. Mohamed, S. A. Halawy, M. M. Ebrahim: 'Non-isothermal decomposition of nickel acetate tetrahydrate', in: Journal of Analytical and Applied Pyrolysis, 1993, 27 (2), S. 109–110. doi:10.1016/0165-2370(93)80002-H.
- ^G. A. M. Hussein, A. K. H. Nohman, K. M. A. Attyia: 'Characterization of the decomposition course of nickel acetate tetrahydrate in air', in: Journal of Thermal Analysis and Calorimetry, 1994, 42, S. 1155–1165; doi:10.1007/BF02546925.
- ^Downie, T. C.; Harrison, W.; Raper, E. S.; Hepworth, M. A. (15 March 1971). 'A three-dimensional study of the crystal structure of nickel acetate tetrahydrate'. Acta Crystallographica Section B. 27 (3): 706–712. doi:10.1107/S0567740871002802.
- ^'Nickel metal and other compounds (as Ni)'. Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
- ^Van Niekerk, J. N.; Schoening, F. R. L. (1953). 'The crystal structures of nickel acetate, Ni(CH3COO)2·4H2O, and cobalt acetate, Co(CH3COO)2·4H2O'. Acta Crystallogr.6 (7): 609–612. doi:10.1107/S0365110X5300171X.
- ^Lascelles, Keith; Morgan, Lindsay G.; Nicholls, David; Beyersmann, Detmar (2005). 'Nickel Compounds'. Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a17_235.pub2.
- ^Tappmeyer, W. P.; Davidson, Arthur W. (1963). 'Cobalt and Nickel Acetates in Anhydrous Acetic Acid'. Inorg. Chem.2 (4): 823–825. doi:10.1021/ic50008a039.
AcOH | He | ||||||||||||||||
LiOAc | Be(OAc)2 BeAcOH | B(OAc)3 | AcOAc ROAc | NH4OAc | AcOOH | FAc | Ne | ||||||||||
NaOAc | Mg(OAc)2 | Al(OAc)3 ALSOL Al(OAc)2OH Al2SO4(OAc)4 | Si | P | S | ClAc | Ar | ||||||||||
KOAc | Ca(OAc)2 | Sc(OAc)3 | Ti(OAc)4 | VO(OAc)3 | Cr(OAc)2 Cr(OAc)3 | Mn(OAc)2 Mn(OAc)3 | Fe(OAc)2 Fe(OAc)3 | Co(OAc)2, Co(OAc)3 | Ni(OAc)2 | Cu(OAc)2 | Zn(OAc)2 | Ga(OAc)3 | Ge | As(OAc)3 | Se | BrAc | Kr |
RbOAc | Sr(OAc)2 | Y(OAc)3 | Zr(OAc)4 | Nb | Mo(OAc)2 | Tc | Ru(OAc)2 Ru(OAc)3 Ru(OAc)4 | Rh2(OAc)4 | Pd(OAc)2 | AgOAc | Cd(OAc)2 | In | Sn(OAc)2 Sn(OAc)4 | Sb(OAc)3 | Te | IAc | Xe |
CsOAc | Ba(OAc)2 | Hf | Ta | W | Re | Os | Ir | Pt(OAc)2 | Au | Hg2(OAc)2, Hg(OAc)2 | TlOAc Tl(OAc)3 | Pb(OAc)2 Pb(OAc)4 | Bi(OAc)3 | Po | At | Rn | |
Fr | Ra | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | |
↓ | |||||||||||||||||
La(OAc)3 | Ce(OAc)x | Pr | Nd | Pm | Sm(OAc)3 | Eu(OAc)3 | Gd(OAc)3 | Tb | Dy(OAc)3 | Ho(OAc)3 | Er | Tm | Yb(OAc)3 | Lu(OAc)3 | |||
Ac | Th | Pa | UO2(OAc)2 | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr |
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