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Overview of Nickel oxide

wallpapers News 2021-08-19
Nickel oxide has the chemical formula NiO. It is a common inorganic compound and the most stable oxide of nickel. It is a green powder and is widely used in daily life. It is also used to prepare high purity (>99.98% nickel). This product is harmful to human health. Please take precautions when contacting it. It may cause cancer and sensitization to the human body.
Physical properties
Nickel oxide is a green powdery solid. The melting point is 1980±20°C. The density is 6.67g/cm3. It is insoluble in water, insoluble in lye, alkaline oxide, soluble in acid and ammonia.
The entanglement of the internal structure of nickel oxide causes carriers to fail to flow, resulting in nickel oxide as an insulator and non-conductive.
In addition, the physical properties of nickel oxide also change with the change of preparation temperature. With the increase of preparation temperature, its density and resistance increase, and solubility and catalytic activity decrease.
The crystal structure of Nickel oxide is a cubic crystal system. The crystal structure of NiO is similar to that of sodium chloride, that is, the structure of rock salt, in which there is six closest Os around each Ni. The oxygen atoms form a regular octahedron, and the nickel atom is in the center; and vice
versa. The oxygen atom is also in the regular octahedron formed by the nickel atom. The whole crystal can be seen as a staggered arrangement of face-centered cubic Ni and also face-centered cubic O.
Chemical nature
If used and stored in accordance with the specifications, it will not decompose. There are no known hazardous reactions. Avoid contact with halogens, hydrogen peroxide, hydrogen sulfide, etc.
Nickel oxide prepared at low temperature has chemical activity. Nickel oxide prepared at high temperature at 1000 ℃ is greenish-yellow with low activity.
The color turns yellow when heated. When heated to 400°C, it absorbs oxygen in the air to produce high nickel oxide (Ni2O3), and at 600°C, it is reduced to NiO. The reaction formula is: 4NiO+O2==400℃==2Ni2O3, 2Ni2O3==600℃==4NiO+O2.
Nickel oxide Supplier
TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global Nickel oxide supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. Currently, our company has successfully developed a series of materials. The Nickel oxide produced by our company has high purity, and fine Nickel oxide size. For the latest price of Nickel oxide, send us an email or click on the needed products to send an inquiry.


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