*** Welcome to piglix ***

Nickel(III) oxide

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
EC Number 215-217-8
PubChem CID
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
Hazards
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroform Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YesYN ?)
Infobox references

Nickel(III) oxide is the inorganic compound with the formula Ni2O3. It is not a 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.


...
Wikipedia

...