How much do you know about the basic knowledge of nickel oxide?

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Overview of nickel oxide
Nickel oxide is an inorganic substance with a chemical formula of NiO and a molecular weight of 74.71. It is a green-black cubic crystal. It is soluble in acid and ammonia but insoluble in water. The color turns yellow when heated. It is obtained by the action of nickel and oxygen at a temperature greater than 400°C, or by pyrolysis of nickel carbonate at 350°C. Used to make alloys, batteries, glass, enamel, ceramics, electronic components, nickel salts, and catalysts.
 
Properties and stability of nickel oxide
If used and stored in accordance with specifications, it will not decompose. There are no known hazardous reactions. Avoid halogens, hydrogen peroxide, and hydrogen sulfide.
It is soluble in acid and ammonia, but insoluble in water and liquid nitrogen. When heated to 400"C, it becomes nickel trioxide due to the absorption of oxygen in the air. It is reduced to nickel monoxide at 600°C. Nickel monoxide produced at low temperature is chemically active, and one produced at 1000°C high temperature calcination Nickel oxide is greenish-yellow with low activity. With the increase of preparation temperature, its density and resistance increase, and solubility and catalytic activity decrease. The color becomes yellow when heated. When heated to 400°C, it absorbs oxygen in the air to produce Ni203,600 At °C, it is reduced to NiO. Soluble in acid and ammonia. Insoluble in water.
 
Uses of nickel oxide
Used as an adhesive and coloring agent for porcelain enamel, and as a pigment for ceramics and glass. In the production of magnetic materials, it is used to produce nickel-zinc ferrite, etc., as well as raw materials for the production of nickel salts, nickel catalysts, and applications in metallurgy and picture tubes.
 
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