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History
Monel
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Monel is a group of alloys of nickel and copper, with small amounts of iron, manganese, carbon, and silicon. Monel is not a cupronickel alloy because it has less than 60% copper.
The Art Deco gate in the entrance hall of the Guardian Building is made from Monel.
The Art Deco gate in the entrance hall of the Guardian Building is made from Monel.
Identification tags made from Monel
Identification tags made from Monel
Monel doorknobs in the Bryn Athyn Cathedral
Monel doorknobs in the Bryn Athyn Cathedral
The greenish roof of New York's Pennsylvania Station was made from Monel
The greenish roof of New York's Pennsylvania Station was made from Monel
Nickel
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Nickel is a chemical element; it has symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive, but large pieces are slow to react with air under standard conditions because a passivation layer of nickel oxide forms on the surface that prevents further corrosion. Even so, pure native nickel is found in Earth's crust only in tiny amounts, usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth's atmosphere.
Nickel
Nickel
Electron micrograph of a Ni nanocrystal inside a single wall carbon nanotube; scale bar 5 nm
Electron micrograph of a Ni nanocrystal inside a single wall carbon nanotube; scale bar 5 nm
Widmanstätten pattern showing the two forms of nickel–iron, kamacite and taenite, in an octahedrite meteorite
Widmanstätten pattern showing the two forms of nickel–iron, kamacite and taenite, in an octahedrite meteorite
Color of various Ni(II) complexes in aqueous solution. From left to right, [Ni(NH3)6]2+, [Ni(NH2CH2CH2NH2)]2+, [NiCl4]2−, [Ni(H2O)6]2+
Color of various Ni(II) complexes in aqueous solution. From left to right, [Ni(NH3)6]2+, [Ni(NH2CH2CH2NH2)]2+, [NiCl4]2−, [Ni(H2O)6]2+