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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 belongs to the transition metals and is hard and ductile.
N 2808 (OTTO) Nickel slug, 3.175mm (0.125in) dia x 6.35mm (0.25in) length, 99.98% Cas 7440-02-0 - used including Raney-type catalysts.