Nickel(III) oxide is the inorganic compound with the formula Ni2O3. It is not well characterised, sometimes referred to as black nickel oxide. Traces of Ni2O3 on nickel surfaces have been mentioned. A related, better characterized material is nickel oxide hydroxide (NiOOH), which is likely the reagent employed in organic synthesis since it is generated in aqueous media.
Nickel (III) oxide
|Molar mass||165.39 g/mol|
|Appearance||black-dark gray solid|
|Melting point||600 °C (1,112 °F; 873 K) (decomposes)|
|NFPA 704 (fire diamond)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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