Description
Nickel is a chemical element with the symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile. Pure nickel, powdered to maximize the reactive surface area, shows a significant chemical activity, but larger pieces are slow to react with air under standard conditions because an oxide layer forms on the surface and prevents further corrosion (passivation). Even so, pure native nickel is found in Earth's crust only in tiny amounts, usually in ultramafic rocks, [4][5] and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth's atmosphere.
Properties
Nickel is a hard, silver-white metal. It is hard, malleable, ductile and can be polished very well. Nickel is ferromagnetic like iron and cobalt.
Deliverable form: Ni2O5
Deliverable content:
Packing unit; On request
Application
Nickel is a major alloying metal used mainly for steel refining. It makes steel corrosion resistant and increases its hardness, toughness, and ductility. Pure nickel metal is used in finely divided form as a catalyst in the hydrogenation of unsaturated fatty acids .