Nickel(III) oxide
Names | |
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IUPAC name
Nickel (III) oxide
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Other names
Nickel sesquioxide,
nickel trioxide |
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Identifiers | |
1314-06-3 ![]() |
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EC Number | 215-217-8 |
PubChem | 10313272 |
RTECS number | QR8420000 |
Properties | |
Ni2O3 | |
Molar mass | 165.39 g/mol |
Appearance | black-dark gray solid |
Density | 4.84 g/cm3 |
Melting point | 600 °C (1,112 °F; 873 K) (decomposes) |
negligible | |
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(III) oxide (Ni2O3) has been referred to in the literature, but is not a well characterised compound.[1] The substance black nickel oxide is sometimes described as being Ni2O3; however, the composition quoted by suppliers has a nickel content of around 77% by weight, whereas Ni2O3 would have 70.98% Ni by weight, and may be non-stoichiometric NiO.[1]
There are references in the literature to traces of Ni2O3 on nickel surfaces, and as intermediates in nickel oxidation, e.g.[2][3]
Nickel oxide hydroxide
The related nickel oxide hydroxide (NiOOH) can be prepared by reaction of nickel(II) chloride with sodium hypochlorite; the sodium hypochlorite functions as an oxidizing agent:
4OH− + 2NiCl2 + NaClO ---> Na+ + H2O + 2NiOOH + 5Cl−
In one modification[4] the compound is used in a catalytic amount with bleach in stoichiometric amount in the oxidation of benzyl alcohol to benzoic acid:
or in double oxidation of 3-butenoic acid to fumaric acid:
References
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- ↑ An oxide of tervalent nickel , P. S. Aggarwal, A. Goswami, J. Phys. Chem.; 1961; 65(11); 2105-2105, doi:10.1021/j100828a503
- ↑ Chemical vapor deposition of nickel oxide films from Ni(C5H5)2/O2, Jin-Kyu Kang, Shi-Woo Rhee, Thin Solid Films, 391, 1, (2001),57-61, doi:10.1016/S0040-6090(01)00962-2
- ↑ An Efficient and Practical System for the Catalytic Oxidation of Alcohols, Aldehydes, and ,-Unsaturated Carboxylic Acids Joseph M. Grill, James W. Ogle, and Stephen A. Miller J. Org. Chem.; 2006; 71(25) pp 9291 - 9296; (Article) doi:10.1021/jo0612574
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- Inorganic compounds
- Catalysts
- Electrochemistry
- Oxides
- Nickel compounds
- Non-stoichiometric compounds
- Sesquioxides