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Nickel(II) oxide

Product Name:
Nickel(II) oxide
CAS No.
1313-99-1
Chemical Name:
Nickel(II) oxide
CBNumber:
CB2358284
Molecular Formula:
NiO
Formula Weight:
74.69
MOL File:
1313-99-1.mol
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Nickel(II) oxide Property

Melting point:
1960 °C
Density 
6.67 g/mL at 25 °C(lit.)
form 
Powder/Solid
color 
green
Specific Gravity
6.67
Water Solubility 
insoluble
Merck 
14,6512
Stability:
Stable. Incompatible with strong acids.
InChIKey
GNRSAWUEBMWBQH-UHFFFAOYSA-N
CAS DataBase Reference
1313-99-1(CAS DataBase Reference)
EPA Substance Registry System
Nickel(II) oxide (1313-99-1)
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Safety

Hazard Codes 
T,Xi
Risk Statements 
49-43-53-48/23-36/37
Safety Statements 
53-45-61-36/37-26
RIDADR 
3288
WGK Germany 
1
RTECS 
QR8400000
TSCA 
Yes
HS Code 
28254000
Hazardous Substances Data
1313-99-1(Hazardous Substances Data)
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N-Bromosuccinimide Price More Price(28)

Sigma-Aldrich Gold
Product number:
203882
Product name :
Nickel(II) oxide
Purity:
99.99% trace metals basis
Packaging:
100g
Price:
$74.1
Updated:
2020/08/18
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Sigma-Aldrich Gold
Product number:
203882
Product name :
Nickel(II) oxide
Purity:
99.99% trace metals basis
Packaging:
20g
Price:
$103
Updated:
2020/08/18
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Buy
Alfa Aesar Gold
Product number:
010819
Product name :
Nickel(II) oxide, Puratronic?, 99.998% (metals basis)
Packaging:
5g
Price:
$36.4
Updated:
2020/06/24
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Alfa Aesar Gold
Product number:
010819
Product name :
Nickel(II) oxide, Puratronic?, 99.998% (metals basis)
Packaging:
25g
Price:
$201
Updated:
2020/06/24
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Strem Chemicals Gold
Product number:
28-1475
Product name :
Nickel(II) oxide (99.998%-Ni) PURATREM
Packaging:
50g
Price:
$288
Updated:
2020/06/24
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Nickel(II) oxide Chemical Properties,Usage,Production

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.
Nickel (II) oxide

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

Chemical Properties

Nickel(II) oxide is Brownish black or black powder.

Uses

Nickel salts, porcelain painting, fuel cell electrodes.

Preparation

Nickel oxide is prepared by heating pure nickel powder with oxygen at a temperature above 400°C. In some commercial processes, green nickel oxide is made by heating a mixture of nickel powder and water in air at 1,000°C. Adding some nickel 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 slight-ly greater than its green counterpart.

Reactions

Nickel(II) oxide is insoluble in water but soluble in acids as long as it has not been ignited at a high temperature (under these latter conditions it is converted into grey-black octahedra having a metallic lustre). It reacts reversibly with hydrogen, the reaction NiO+H2 ? Ni+H20 proceeding from left to right at relatively low temperatures in a stream of hydrogen.

Hazard

Confirmed carcinogen.

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.

Nickel(II) oxide Preparation Products And Raw materials Raw materials

Raw materials

Preparation Products

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Nickel(II) oxide Suppliers

Global(224)Suppliers
Shanghai Aladdin Bio-Chem Technology Co.,LTD
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Physical Properties Occurrence Uses Preparation Reactions