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Nickel(III) oxide

Nickel(III) oxide

General
Systematic name	Nickel (III) oxide
Other names	Nickel sesquioxide, nickel trioxide
Molecular formula	Ni₂O₃
Molar mass	165.39 g/mol
Appearance	Black-grey solid
CAS number	[1314-06-3]
Properties
Density and phase	4.84 g/cm³, solid
Solubility in water	Insoluble
Melting point	600 °C (873 K) decomposes
Boiling point	N/A
Structure
Coordination geometry	N/A
Crystal structure	N/A
Hazards
MSDS	ScienceLab.com
Main hazards	Carcinogen, Irritant and
NFPA 704	0 1 0
Flash point	Non-flammable
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Nickel(III) oxide (more commonly nickel oxide, Ni₂O₃) is an ionic chemical compound, formed by the oxidation of pure carbonyl nickel powder. It is usually used as an electrolyte, or as a catalyst.

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Nickel oxide hydroxide

The related nickel oxide hydroxide (NiOOH) can be prepared by reaction of nickel(II) chloride and sodium hypochlorite in water and used as an oxidizing agent. In one modification ^[1]the compound is used in a catalytic amount with bleach in stoichometric amount in the oxidation of benzyl alcohol to benzoic acid:

or in double oxidation of 3-butenoicid to fumaric acid:

References

^ 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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Categories: Inorganic compounds | Catalysts | Electrochemistry | Oxides | Nickel compounds