Nickel
Nickel is a silvery-white metal with a yellowish tint and is a magnetic transition metal. Electrolytic nickel is nickel made using electrolysis (electrolysis in a solution of nickel sulfate). The enriched sulfide ore is roasted into oxides, reduced to coarse nickel with carbon, and then electrolyzed to obtain pure metal nickel. Nickel is used as a catalyst for hydrogenation reactions in the chemical industry.
Description
镍是一种硬而有延展性并具有铁磁性的金属，它能够高度磨光和抗腐蚀。镍属于亲铁元素。熔点1455℃，沸点2730℃，密度8.90克/厘米3，能导电和导热。