Nickel
Nickel
Extracted from Collier's Encyclopedia
Nickel, symbol Ni, is element
number 28, at. wt. 58.69, density 8.9, m.p. 1,455 degrees celcius, b.p. 2,900
degrees celcius. Nickel is the last member of the first triad in Group VIII of
the periodic table. It is a transition element, associated with iron and cobalt,
with which it occurs in nature; these three metals resemble one another closely
in both physical and chemical properties. . ..
Properties.
Nickel is a white metal, hard (Brinell for cast metal 90-
110), malleable, and ductile. Below 340 degrees C. it can be magnetic. It
conducts heat and electricity fairly well. It takes a high polish, and remains
bright in ordinary air for a long time. It gradually becomes dull gray in color,
especially in air containing sulphur compounds. When the metal is dipped in
nitric acid it becomes passive...
Uses.
The uses of nickel depend largely on its ability to resist
corrosion, a property also imparted in large measure to its alloys. By far the
largest use of nickel is in the production of alloy steels, such as stainless
steel. ... Alnico (nickel , cobalt, iron, and aluminum) powerfully magnetic,
making possible the construction of small instruments requiring permanent
magnets.
((Inflation being what it is, a nickel isn't worth a plugged nickel.))
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