Nickel(III) oxide
Compounds
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Nickel (III) oxide is the inorganic compound with the formula Ni₂O₃. It is not well characterized, and is sometimes referred to as black nickel oxide. Traces of Ni₂O₃ on nickel surfaces have been mentioned. Wikipedia
Formula: Ni2O3
Molar mass: 165.39 g/mol
Melting point: 1,112°F (600°C)
Density: 4.84 g/cm³
Solubility in water: negligible
Appearance: black-dark gray solid
NFPA 704 (fire diamond): 2 0 0