Nickel(II) acetate
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Names | |
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Systematic IUPAC name
Nickel(2+) diacetate
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Identifiers | |
373-02-4 6018-89-9 (tetrahydrate) |
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EC Number | 239-086-1 |
Jmol 3D model | Interactive image |
PubChem | 9756 |
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Properties | |
C4H6NiO4 | |
Molar mass | 176.78 g·mol−1 |
Appearance | Green Solid |
Odor | slight acetic acid |
Density | 1.798 g/cm3 (anyhdrous) 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 |
Vapor pressure | {{{value}}} |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references | |
Nickel(II) acetate is the name for inorganic compound with the formula Ni(CH3CO2)2·2 H2O or Ni(CH3COO)2·2 H2O also abbreviated Ni(OAc)2·2 H2O. The green tetrahydrate Ni(CH3COO)2·4 H2O is more common. It is used for electroplating.
Synthesis and structure
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.[3] It may be dehydrated in vacuo, by reaction with acetic anhydride,[4] or by heat.[5]
Safety
Nickel salts are carcinogenic and irritate the skin.
References
- ↑ 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.
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Salts and the ester of the Acetate ion | |||||||||||||||||||
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AcOH | He | ||||||||||||||||||
LiOAc | Be(OAc)2 BeAcOH |
B(OAc)3 | ROAc | NH4OAc | AcOAc | FAc | Ne | ||||||||||||
NaOAc | Mg(OAc)2 | Al(OAc)3 ALSOL Al(OAc)2OH |
Si | P | S | ClAc | Ar | ||||||||||||
KOAc | Ca(OAc)2 | Sc(OAc)3 | Ti(OAc)4 | VO(OAc)3 | Cr(OAc)2 | Mn(OAc)2 MnAc3 |
Fe(OAc)2 FeAc3 |
Co(OAc)2, CoAc3 |
Ni(OAc)2 | Cu(OAc)2 | Zn(OAc)2 | Ga(OAc)3 | Ge | As | 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 SnAc4 |
Sb(OAc)3 | Te | IAc | Xe | ||
CsOAc | Ba(OAc)2 | Hf | Ta | W | Re | Os | Ir | Pt(OAc)2 | Au | Hg2(OAc)2, HgAc2 |
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 | Uut | Fl | Uup | Lv | Uus | Uuo | |||
↓ | |||||||||||||||||||
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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- Nickel compounds
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