Nickel(III) oxide

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Nickel (III) oxide
Nickel (III) oxide powder
Names
IUPAC name
Nickel (III) oxide
Other names
Nickel sesquioxide,
nickel trioxide
Identifiers
ECHA InfoCard
 100.013.835 Edit this at Wikidata
EC Number
  • 215-217-8
RTECS number
  • QR8420000
UNII
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
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Nickel (III) oxide is the inorganic compound with the formula Ni2O3. It is not well characterized,[1] and is sometimes referred to as black nickel oxide. Traces of Ni2O3 on nickel surfaces have been mentioned.[2][3]

Nickel (III) oxide has been studied theoretically since the early thirties,[4] supporting its unstable nature at standard temperatures. A nanostructured pure phase of the material was synthesized and stabilized for the first time in 2015 from the reaction of nickel(II) nitrate with sodium hypochlorite and characterized using powder X-ray diffraction and electron microscopy.[5]

References

  1. ISBN 978-0-08-037941-8
    .
  2. ISSN 0022-3654
    .
  3. doi:10.1016/S0040-6090(01)00962-2
    .
  4. ISSN 0002-7863
    .
  5. ISSN 2046-2069
    .


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