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As an important inorganic compound, nickel hydroxide (OH) plays various roles and has many applications. The following outlines the main role of nickel hydroxide and provides specific instructions:
1. Battery materials
Nickel-metal hydride batteries and nickel-cadmium batteries: Nickel hydroxide is the key cathode material of these batteries, because of its good cycle life and high energy density, it is widely used in household appliances, mobile communication equipment, aerospace and other fields.
2.Catalyseur
Chemical catalysis: Nickel hydroxide has excellent catalytic performance and can be used for hydrogenation reaction, hydrolysis reaction, REDOX reaction and so on. In the chemical industry, it is commonly used as a hydrogenating agent of haloalkane; Used in the oil refining industry as a catalyst for desulfurization and nitrogen removal. Drug synthesis: In the field of medicine, nickel hydroxide can be used as a catalyst for th0e preparation of anti-tumor drugs and antibiotics.
3.Ceramic materials
High temperature ceramic components: The nickel oxide ceramics prepared by nickel hydroxide have high temperature stability, good electrical properties and thermal expansion coefficient, and can be used to manufacture high temperature ceramic capacitors, ceramic resistors, ceramic electronic components, etc.
4. paints and pigments
Special coatings: Nickel hydroxide can be used as a special coating material, with good corrosion resistance and heat resistance, suitable for the preparation of surface protective coatings such as metallurgical equipment and chemical equipment. De plus,, it can also be used as an additive for paints and pigments, and the prepared products are bright in color and not easy to fade.
5.Other industrial applications
Nickel salt: Nickel hydroxide is an important raw material for making nickel salt.
Electroplating: In the electroplating industry, nickel hydroxide can be used in the nickel plating process.
Magnetic materials: Nickel hydroxide can also be used to prepare magnetic materials, ceramic magnets, adsorption materials, etc., in the aerospace, automotive industry also has applications.
6.Physical and chemical properties
Appearance and solubility: Nickel hydroxide is a green powder, slightly soluble in water, but easily soluble in acid and ammonium hydroxide.
Melting point and density: Melting point is 230 ° C and density is 4.10 g/cm³ (different sources may vary slightly).
7.Safety and Toxicity
Toxicity: Nickel compounds (including nickel hydroxide) may be toxic under certain conditions, such as nickel can enter cells, cause the destruction of enzymes and metabolic processes in cells, and may cause carcinogenic effects by causing the production of certain carcinogens. Contact with nickel compounds can cause nickel eczema, nickel scabies.
8.Protective measures :During production, the operator should wear a gas mask and gas mask to prevent direct contact with the skin, and try to implement mechanized operation to avoid dust.
En résumé, nickel hydroxide has a wide range of applications in many fields such as batteries, catalysts, céramique, Revêtements, electroplating, etc., but its toxicity also needs attention, and corresponding protective measures need to be taken during production and use.
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