Nickel is extracted from ores via the Mond process, in which nickel oxides are purified through multiple steps into pure nickel metal. It is placed with hydrogen and carbon monoxide gases at 122 degrees Fahrenheit, which converts it to impure nickel. This impure nickel then reacts with the carbon monoxide, becoming nickel tetracarbonyl. This is then heated to 446 degrees Fahrenheit, which releases the carbon monoxide gas and leaves pure nickel metal.Know More
Relatively pure coins made of nickel were used as far back as 235 BCE in China, but it was first documented as a unique metal after extraction in 1751. It was initially seen as worthless, but its many uses were soon discovered. Nickel is a very useful metal for making alloys, adding strength, hardness and corrosion resistance. It is used in silver plating, and is a key ingredient in stainless steel, one of the most-used alloys.
While nickel does occur naturally as a pure metal in the form of cubic crystals, it is generally mined from mixed ores. As a pure metal, it is malleable and ductile and has moderate thermal and electrical conductivity. Nickel is also a magnetic metal below 653 degrees Fahrenheit. It is somewhat reactive with dilute nitric, hydrochloric and sulfuric acids.Learn more about Geology
Magnesium is extracted in one of three ways. The first is the electrolytic process, which uses magnesium chloride produced from magnesite or seawater. The second is the silicothermic process, which mixes calcined dolomite or magnesite with ferrosilicon alloy. The third involves dissolving magnesite in hydrochloric acid to make magnesium chloride.Full Answer >
Aluminum is extracted from bauxite ore using chemical processes. Bauxite is strip mined from near the surface of the earth. The ore is then heated along with a sodium hydroxide solution that chemically separates the aluminum from the ore. After its separation, it is heated, becomes molten, then electrified, and finally solidified as a solid and wholly aluminum product.Full Answer >
Raney nickel is an alloy of nickel and aluminum that has much of the aluminum removed through a leaching process with sodium hydroxide. It is used as a catalyst in organic chemistry and as a reagent.Full Answer >
Nickel is a ferromagnetic element. Nickel, iron, cobalt and gadolinium are the only elements that are magnetic around room temperature. A ferromagnetic metal can be attracted to magnets and can be magnetized itself.Full Answer >