乙酸镍 | |
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系统名 Nickel(2+) diacetate | |
英文名 | Nickel(II) acetate |
别名 | 醋酸镍 |
识别 | |
CAS号 | 6018-89-9(四水) 373-02-4 |
PubChem | 9756 |
SMILES |
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InChI |
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EINECS | 239-086-1 |
性质 | |
化学式 | C4H6NiO4 |
摩尔质量 | 176.78 g·mol−1 |
外观 | 绿色固体 |
气味 | 略带醋酸味 |
密度 | 1.798 g/cm3(无水) 1.744 g/cm3(四水) |
熔点 | 分解[1][2] |
溶解性(水) | 易溶于水 |
溶解性 | 可溶于甲醇 难溶于乙醚、1-辛醇 |
磁化率 | +4,690.0·10−6 cm3/mol |
结构 | |
晶体结构 | 单斜晶系 |
空间群 | P21/c |
晶格常数 | a = 4.764, b = 11.771, c = 8.425 Å |
晶格常数 | α = 90°, β = 93.6°, γ = 90° |
配位几何 | 扭曲的八面体 |
危险性 | |
NFPA 704 | |
致死量或浓度: | |
LD50(中位剂量)
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350 mg/kg(大鼠,口) 410 mg/kg(小鼠,口)[3] |
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。 |
乙酸镍是镍的乙酸盐,化学式为Ni(CH3COO)2,有时简写为Ni(OAc)2或NiAc2。乙酸镍可以以无水物、二水合物和四水合物的形式存在。它常用于电镀。
制备
- NiCO3 + 2 CH3CO2H + 3 H2O → Ni(CH3CO2)2·4 H2O + CO2
性质
四水合乙酸镍是绿色晶体,X射线衍射表明它具有八面体结构。中心镍原子由四个水分子和两个乙酸根配位。[4]四水合物可以在真空中和乙酸酐反应[5]或直接加热[6]来脱水。
参考文献
- ↑ 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.
- ↑ 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. The crystal structures of nickel acetate, Ni(CH3COO)2·4H2O, and cobalt acetate, Co(CH3COO)2·4H2O. Acta Crystallogr. 1953, 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. Cobalt and Nickel Acetates in Anhydrous Acetic Acid. Inorg. Chem. 1963, 2 (4): 823–825. doi:10.1021/ic50008a039.
- ↑ 庞美丽, 吴川, 吴锋,等. 醋酸镍促进硼氢化钠水解制氢的研究 [J]. 华南师范大学学报(自然科学版), 2009(s1):88-89.
乙酸盐及乙酸衍生物 | |||||||||||||||||||||||||||||||||||||||||||||||||
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AcH AcOH |
He | ||||||||||||||||||||||||||||||||||||||||||||||||
LiOAc | Be(OAc)2 Be4O(OAc)6 |
B(OAc)3 | ROAc | NH4AcO | AcOAc | FAc | Ne | ||||||||||||||||||||||||||||||||||||||||||
NaOAc NaH(OAc)2 |
Mg(OAc)2 | Al(OH)2(OAc) Al(OH)(OAc)2 Al(OAc)3 Al(OAc)x |
Si | P | S | ClAc ClOAc |
Ar | ||||||||||||||||||||||||||||||||||||||||||
KOAc | Ca(OAc)2 | Sc(OAc)3 | Ti(OAc)4 | VO2(OAc)2 | Cr2(OAc)4 Cr(OAc)3 |
Mn(OAc)2 Mn(OAc)3 |
Fe(OAc)2 Fe(OAc)3 |
Co(OAc)2 Co(OAc)3 |
Ni(OAc)2 | Cu2(OAc)2 Cu2(OAc)4 |
Zn(OAc)2 | Ga(OAc)3 | Ge | As | Se | BrAc BrOAc |
Kr | ||||||||||||||||||||||||||||||||
RbOAc | Sr(OAc)2 | Y(OAc)3 | Zr(OAc)4 | Nb | Mo(OAc)2 | Tc | Ru(OAc)3 | Rh2(OAc)4 | Pd(OAc)2 | AgOAc | Cd(OAc)2 | In(OAc)3 | Sn(OAc)2 Sn(OAc)4 |
Sb(OAc)3 | Te | IAc IOAc I(OAc)3 |
Xe | ||||||||||||||||||||||||||||||||
CsOAc | Ba(OAc)2 | Hf(OAc)4 | Ta | W | Re | Os | Ir | Pt(OAc)2 | Au(OAc)3 | 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)3 Ce(OAc)4 |
Pr(OAc)3 | Nd(OAc)3 | PmAc3 | Sm(OAc)3 | Eu(OAc)3 | Gd(OAc)3 | Tb(OAc)3 | Dy(OAc)3 | Ho(OAc)3 | Er(OAc)3 | Tm(OAc)3 | Yb(OAc)3 | Lu(OAc)3 | |||||||||||||||||||||||||||||||||||
Ac(OAc)3 | Th(OAc)4 | Pa | U(OAc)4 UO2(OAc)2 |
Np | PuO2Ac2 | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr |