Nickel is a hard, ductile and ferromagnetic metal that is highly polished and resistant to corrosion. Nickel is a ferrophilic element. The core is mainly composed of iron and nickel elements. In the crust, iron-mafic rocks contain more nickel than silico-alumina rocks. For example, peridotite contains 1,000 times more nickel than granite, and gabbro contains 80 times more nickel than granite.
On October 27, 2017, the World Health Organization's International Agency for Research on Cancer released the preliminary list of carcinogens for reference. Nickel compounds are in the list of carcinogens, metal cobalt, metal nickel and 66-67% nickel, 13-16% nickel. Chromium and 7% iron alloy powders for implantation of foreign bodies in vivo, nickel metal and nickel alloys are on the list of Class 2B carcinogens.
Niclkel powder is mainly used in atomic energy industry, conductive materials, battery electrode materials, chemical catalysts, hard surface spray welding, special welding rods, porous filter materials, magnetic materials, contact materials,
Diamond tools, automobile manufacturing, cemented carbide, high-temperature high-strength alloys and other powder metallurgy fields.
Application Nickel plating is used in various alloys such as new silver, Chinese silver, German silver; for coins, electronic boards, storage batteries; magnets, lightning rod tips, electrical contacts and electrodes, spark plugs, mechanical parts; catalysts for the hydrogenation of oils and other organic substances. See also Raney nickel. Manufacture of monel metal, stainless steel, heat-resistant steel, heat-resistant and corrosion-resistant alloys, nickel-chromium resistance wire; alloys for electronic and space applications. Use Nickel is used in various alloys such as German silver, monel and nickel-chromium alloys; for coins; coins, metals, etc. In storage batteries; in spark plugs; and as a hydrogenation catalyst. Preparation Nickel is obtained by processing sulfide and laterite ore concentrates using pyrometallurgical and hydrometallurgical processes. The nickel matte powder obtained by roasting and smelting is further cleaned by electrometallurgical, steam and hydrometallurgical refining methods. A portion of the matte surface is baked to obtain commercially available nickel oxide agglomerates. 99.9% pure nickel can be obtained by electrolytic refining process. The purest nickel (99.97%) is obtained by vapor metallurgy. In this process, also known as the Mond Chemicalbook process, a mixture of nickel and copper sulfide is converted into oxides and then reduced by heating with water vapor at 350â??400 �° C. The resulting active form of nickel is treated with carbon monoxide to obtain volatile nickel carbonyl [Ni (CO) 4]. The reaction of the latter is reversible. Heating produces pure nickel and carbon monoxide. Overview Nickel is a slightly yellowish silvery-white metal, hard, easy to polish, magnetic (not as good as iron and cobalt) and good plasticity. Density 8.902g/cm3, melting point 1453 �° C, boiling point 2732 �° C. The chemical properties are relatively active. It has good corrosion resistance, is difficult to oxidize in air at room temperature, is not easy to react with concentrated nitric acid, and can resist alkali corrosion. Fine nickel wire is flammable, reacts with halogens when heated, and slowly dissolves in dilute acid. It can absorb a considerable amount of hydrogen. It is mainly used to make various alloys composed of iron, copper, zinc and other metals, and is widely used in cutting-edge technology, high-temperature ceramic products, corrosion-resistant alloys, chemical equipment, electronic and electrical equipment, special utensils, glass and other industries. Adding nickel to steel can improve the toughness and corrosion resistance of steel, such as nickel steel, chrome-nickel steel, etc.
Nickel Has High Corrosion Resistance To Atmospheric And Chemical Agents.
Obtaining : - Reduction Of Nickel Oxide Oxides Or Nickel-nickel Cuprous Processing, Followed By Purification By Electrolysis Or Mond-carbonil.
Use : - Obtaining Of Stainless Steels And Special Alloys;
- Obtaining Wear-resistant Cast Iron;
- Obtaining Copper-nickel-zinc (alpaca) Alloys;
- Corrosion Protection Of Ornamental Articles;
- Obtaining Raney Nickel Catalysts For The Chemical Industry.
Property : - High Resistance To Corrosion Of Atmospheric And Chemical Agents.
Material Specification : According To Stas 10502/1976; Iso 6283/1995.
Brand : Ni 99.95.
Presentation : 800 X 800 X 10 Mm Plates.
100 X 100 X 10 Mm
