Ni(dmg)2 Molar Mass
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.
The JtR developers had the issues fixed in a couple days. I provided the bug details to john-dev and john-users mailing list to replicate. Dmg2john scrapes the DMG and provides output which can be cracked with JtR by others without putting the data at risk. Fortunately, JtR has something called dmg2john. Encrypted dmg forgot password recovery. Unfortunately, when I got there, dmg2john and JtR were broken when it came to DMGs.
Synthesis and structure[edit]
The compound can be prepared by treating nickel or nickel(II) carbonate with acetic acid:
Synonym: 2,4-Pentanedione nickel(II) derivative, Ni(acac) 2. CAS Number 3264-82-2. Linear Formula Ni(C 5 H 7 O 2) 2. Molecular Weight 256.91. Beilstein/REAXYS Number 4157970. EC Number 221-875-7. MDL number MFCD00000024. PubChem Substance ID 24857123. Balance the reaction of DMG + Ni(NO3)2 = NiDMG + NO3 using this chemical equation balancer! Best Answer: the method is to work our the% Ni in the complex then apply that to the precipitate% Ni in the complex = 58.69 / 288.9 = 20.31% mass of Ni in the precipitate = 20.31% of 376 = 76.4 mg of Ni. What I need to figure out: We did a gravimetric analysis lab and I have masses for the DMG-Ni complexes that we recovered but I need to find the percent nickel in each sample. Relevant Equations: I believe you take the mass of the DMG-Ni complex sample and multiply that by the mass ratio of Ni2.
- 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]
Massa Molar Ni(dmg)2
Safety[edit]
Nickel salts are carcinogenic and irritate the skin.
References[edit]
- ^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.
Ni Dmg 2 Molar Mass
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 |