| Identification | More | [Name]
Nickelous oxide | [CAS]
1313-99-1 | [Synonyms]
NICKEL(+2)OXIDE
NICKEL(II) OXIDE
NICKEL(II) OXIDE, BLACK
NICKEL (II) OXIDE (GREEN)
NICKEL MONOXIDE
NICKELOUS OXIDE
NICKELOUS OXIDE, GREEN
NICKEL OXIDE
NICKEL OXIDE, BLACK
NICKEL OXIDE, GREEN
NICKEL OXIDE GREEN (OUS)
blacknickeloxide
bunsenite
mononickeloxide
nickel(ii)oxide(1:1)
nickeloxide(nio)
nickeloxidesinter75
Nickelprotoxide
Nickel(II) oxide, nanopowder, 99.8% metals basis
NICKEL(II) OXIDE, GREEN,-325 MESH, 99% | [EINECS(EC#)]
215-215-7 | [Molecular Formula]
NiO | [MDL Number]
MFCD00011145 | [Molecular Weight]
74.69 | [MOL File]
1313-99-1.mol |
| Chemical Properties | Back Directory | [Appearance]
Brownish black or black powder | [Melting point ]
1960 °C
| [density ]
6.67 g/mL at 25 °C(lit.)
| [solubility ]
insoluble in H2O; soluble in acid solutions | [form ]
Powder/Solid | [color ]
green
| [Specific Gravity]
6.67 | [Stability:]
Stable. Incompatible with strong acids. | [Water Solubility ]
insoluble | [Merck ]
14,6512 | [Exposure limits]
ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 10 mg/m3; TWA 0.015 mg/m3 | [InChIKey]
GNRSAWUEBMWBQH-UHFFFAOYSA-N | [Uses]
Nickel salts, porcelain painting, fuel cell electrodes. | [CAS DataBase Reference]
1313-99-1(CAS DataBase Reference) | [EPA Substance Registry System]
1313-99-1(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T,Xi | [Risk Statements ]
R49:May cause cancer by inhalation.
R43:May cause sensitization by skin contact.
R53:May cause long-term adverse effects in the aquatic environment. | [Safety Statements ]
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36/37:Wear suitable protective clothing and gloves . | [RIDADR ]
3288 | [WGK Germany ]
1
| [RTECS ]
QR8400000
| [TSCA ]
Yes | [HS Code ]
28254000 | [Safety Profile]
Confirmed carcinogen
with experimental carcinogenic and
tumorigenic data. Poison by intratracheal,
intravenous, and subcutaneous routes.
Mutation data reported. Can react violently
with fluorine, hydrogen peroxide, hydrogen
sulfide, iodine, barium oxide + air. See also
NICKEL COMPOUNDS. | [Hazardous Substances Data]
1313-99-1(Hazardous Substances Data) |
| Hazard Information | Back Directory | [Hazard]
Confirmed carcinogen. | [Chemical Properties]
Nickel(II) oxide is Brownish black or black powder. | [General Description]
Nickel(II) oxide (NiO) is a metal oxide based nanomaterial with a good semiconducting property. Nanosized nickel oxide can be found in a variety of morphologies which include nanoflowers, spheres, wires, and tubes. It exhibits high performance in applications which require charge transfer and charge transport based processes. It can be prepared by a variety of physical and thermal methods such as sol-gel, hydrothermal and solvothermal techniques. | [Flammability and Explosibility]
Nonflammable |
| Questions And Answer | Back Directory | [Physical Properties]
Green cubic crystals; transforms to a grayish black octahedral form, known as black oxide, when strongly ignited; black oxide has a metallic luster; density of green oxide is 6.72 g/cm3; Mohs hardness 5.5; melts at 1955°C; insoluble in water; soluble in acids at ordinary temperatures; black form dissolves in hot acids.
| [Occurrence]
The oxide occurs in nature in the mineral, bunsenite.
| [Uses]
Nickel (II) oxide is used in the ceramic industry for making frit, ferrites, and coloring porcelain. The oxide in sinter form is used in the production of nickel- steel alloys. It supplies oxygen to the melt for removal of carbon as carbon dioxide. Some other important uses of Nickel (II) oxide include preparation of many nickel salts, specialty chemicals, and nickel catalysts. It also is used as an electrode in fuel cells. | [Preparation]
Nickel (II) oxide is prepared by heating pure nickel powder with oxygen at a temperature above 400°C. In some commercial processes, green Nickel (II) oxide is made by heating a mixture of nickel powder and water in air at 1,000°C. Adding some Nickel (II) oxide to the above mixture enhances the rate of reaction. An alternative method of preparation of the green oxide involves thermal decomposition of an oxo acid salt of nickel at elevated temperatures. Thus, nickel nitrate, nickel sulfate or, more conveniently, nickel carbonate when heated at 1,000°C, yields the green oxide. The black oxide, on the other hand, is produced at a lower temperature from incomplete calcination of the carbonate or nitrate salt at 600°C. The oxygen content of the black form is slightly greater than its green counterpart. | [Reactions]
Several nickel salts are obtained by reactions of nickel oxide with mineral acids. Thus, the reaction of black nickel oxide with hot dilute sulfuric acid forms nickel sulfate, NiSO4•6H2O. Similarly, dilute nitric acid, hydrochloric, and hydrobromic acids when heated react with the black form of nickel oxide to yield corresponding nickel salts as hexahydrates.
Heating nickel oxide with hydrogen, carbon, or carbon monoxide reduces it to metallic nickel.
Nickel oxide combines with sodium or potassium hydroxide at elevated temperatures (>700°C), forming sodium or potassium nickelate; i.e., K2NiO2:
NiO + 2NaOH → Na2NiO2 + H2O
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