NICKEL - definitie. Wat is NICKEL
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Wat (wie) is NICKEL - definitie

CHEMICAL ELEMENT WITH SYMBOL NI AND ATOMIC NUMBER 28
Element 28; Nickel (element); Nickelic; Nickelous; Nickel metallurgy; Nickel mining in BC; Ni2+; Kupfernickel; Ni (element); Biological roles of nickel; Nickel price; Nickel toxicity; History of nickel
  • [Ni(H2O)6](2+)}}
  • Nickel ores grade evolution in some leading nickel producing countries or regions
  • A "horseshoe magnet" made of [[alnico]] nickel alloy
  • bibcode=2015NatSR...515033S}}</ref>
  • Nickel foam (top) and its internal structure (bottom)
  • hydrated]] [[nickel(II) sulfate]]
  • Tetracarbonyl nickel
  • Dutch coins]] made of pure nickel
  • 2020s commodities boom}}
  • Nickel(III) antimonide
  • Electrolytically refined]] nickel nodule, with green, crystallized nickel-electrolyte salts visible in the pores
  • Evolution of the annual nickel extraction, according to ores
  • Highly purified nickel spheres made by the [[Mond process]]
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  • Nickeline/niccolite
  • [[Widmanstätten pattern]] showing the two forms of nickel-iron, kamacite and taenite, in an octahedrite meteorite

Nickel         
A metal; one of the elements; atomic weight, 58.8 ; equivalent, 29.4; valency, 2; specific gravity, 8.8. It is a conductor of electricity.   Relative resistance, annealed (Silver = 1),   8.285
  Specific Resistance,                         12.47   microhms.
  Resistance of a wire
  (a) 1 foot long, weighing 1 grain,      15.206   ohms.
  (b) 1 foot long, 1/1000 inch thick,     74.963    "
  (c) 1 meter long, weighing 1 gram,       1.060    "
  (d) 1 meter long, 1 millimeter thick,     .1587   "
  Resistance of a 1-inch cube,             4.907   microhms.
  Electro-chemical equivalent, (Hydrogen = .0105)   .3087   mgs.
It is strongly paramagnetic, but loses this quality at 350º C. (662º F.) It is important as a constituent of German silver, an alloy much used for resistance coils. Nickel, Bath. A bath for the electro-deposition of nickel. A great many formulae have been given. Metallic nickel is dissolved in 1 vol. sulphuric acid mixed with 2 vols. water. Neutralize with ammonia, and add of ammonium sulphate one-half the weight of metallic nickel originally used; 135 parts of nickel will be enough for a bath of 10,000 parts. Other formulae are as follows:
  Double nickel-ammonium sulphate,        4   parts.
  Ammonium carbonate,                     3   "
  Water                                 100   "
  Nickel sulphate, nitrate or chloride,   1   "
  Sodium bisulphate,                      1   "
  Water,                                 20   " Nickel anodes are used in the bath to maintain the strength. Too much care cannot be exercised in the absolute cleanliness of the articles to be plated. A too alkaline bath gives a disagreeable yellow color to the deposit; too acid a bath gives badly adhering deposits.
nickel         
(nickels)
1.
Nickel is a silver-coloured metal that is used in making steel.
N-UNCOUNT
2.
In the United States and Canada, a nickel is a coin worth five cents.
N-COUNT
nickel         
¦ noun
1. a silvery-white metal resembling iron, the chemical element of atomic number 28. (Symbol: Ni)
2. N. Amer. informal a five-cent coin.
¦ verb (nickels, nickelling, nickelled; US nickels, nickeling, nickeled) coat with nickel.
Origin
C18: shortening of Ger. Kupfernickel, the copper-coloured ore from which nickel was first obtained, from Kupfer 'copper' + Nickel 'demon' (with ref. to the ore's failure to yield copper).

Wikipedia

Nickel

Nickel is a chemical element with 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.

Meteoric nickel is found in combination with iron, a reflection of the origin of those elements as major end products of supernova nucleosynthesis. An iron–nickel mixture is thought to compose Earth's outer and inner cores.

Use of nickel (as natural meteoric nickel–iron alloy) has been traced as far back as 3500 BCE. Nickel was first isolated and classified as an element in 1751 by Axel Fredrik Cronstedt, who initially mistook the ore for a copper mineral, in the cobalt mines of Los, Hälsingland, Sweden. The element's name comes from a mischievous sprite of German miner mythology, Nickel (similar to Old Nick), who personified the fact that copper-nickel ores resisted refinement into copper. An economically important source of nickel is the iron ore limonite, which is often 1–2% nickel. Other important nickel ore minerals include pentlandite and a mix of Ni-rich natural silicates known as garnierite. Major production sites include the Sudbury region, Canada (which is thought to be of meteoric origin), New Caledonia in the Pacific, and Norilsk, Russia.

Nickel is one of four elements (the others are iron, cobalt, and gadolinium) that are ferromagnetic at about room temperature. Alnico permanent magnets based partly on nickel are of intermediate strength between iron-based permanent magnets and rare-earth magnets. The metal is used chiefly in alloys and corrosion-resistant plating. About 68% of world production is used in stainless steel. A further 10% is used for nickel-based and copper-based alloys, 9% for plating, 7% for alloy steels, 3% in foundries, and 4% in other applications such as in rechargeable batteries, including those in electric vehicles (EVs). Nickel is widely used in coins, though nickel-plated objects sometimes provoke nickel allergy. As a compound, nickel has a number of niche chemical manufacturing uses, such as a catalyst for hydrogenation, cathodes for rechargeable batteries, pigments and metal surface treatments. Nickel is an essential nutrient for some microorganisms and plants that have enzymes with nickel as an active site.

Voorbeelden uit tekstcorpus voor NICKEL
1. Norilsk Nickel produces one–fifth of the world‘s nickel.
2. Meanwhile, Norilsk Nickel, the largest nickel producer in the world, has weathered the correction without flinching.
3. Falconbridge CEO Derek Pannell would be president of Inco Nickel and head all nickel, aluminum and zinc operations.
4. Norilsk Nickel is the world‘s largest nickel and palladium miner and the country‘s leading producer of copper and platinum.
5. Shares of Norilsk Nickel retreated 2.4 percent to 5,562.43 rubles as nickel and copper fell on the London Metal Exchange.