Ni is the chemical element nickel. Ni is the chemical formula of nickel, which belongs to the transition metal element, is a hard and ductile metal with ferromagnetism, which can be high-light run-in and corrosion resistance, nickel is a thermophilic element, and the Earth’s core is mainly composed of iron and nickel elements.
2. What Metal is Ni?
A silver-white, hard, ductile, and ferromagnetic metallic element. Nickel metal has good ductility, medium hardness, magnetic and good plasticity, and corrosion resistance, mainly used in alloys and as a catalyst.
3. Harm of Ni
1, nickel mining and smelting; Alloy steel production and processing; When coal and petroleum are burned, soot is emitted; Production process of electroplating and nickel plating. All bring pollution.
2, nickel has the accumulation effect, the most accumulated in the kidney, spleen, and liver, can induce nasopharyngeal cancer and lung cancer.
4. Mineral Distribution
Laterite nickel deposits in the world are distributed in tropical countries within 30 degrees north and south of the equatorial line, concentrated in the tropical-subtropical regions of the Pacific Rim, mainly: Cuba and Brazil in the Americas; Indonesia and the Philippines in Southeast Asia; Oceania Australia, New Caledonia, Papua New Guinea, etc.
In terms of the distribution of nickel ore in China, it is mainly distributed in the northwest, southwest, and northeast, and its reserves account for 76.8%, 12.1%, and 4.9% of the total reserves in the country, respectively. In terms of provinces (regions), Gansu has the largest reserves, accounting for 62% of the country’s total nickel ore reserves, followed by Xinjiang (11.6%), Yunnan (8.9%), Jilin (4.4%), Hubei (3.4%) and Sichuan (3.3%). Among them, the copper-nickel symbiotic deposit in Jinchang, Gansu province, has huge nickel resource reserves, ranking second in the world and first in Asia after the Sudbury nickel mine in Canada.
5. Characteristics of Ni
The melting point is 1453℃, the boiling point is 2732℃, and the density is 8.902g/cm3(25℃). A silvery-white, glossy, malleable, and ductile metal. Corrosion resistant, soluble in acid (except concentrated nitric acid), does not react with bases.