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Article: Relationship between nickel allergy and diet
- Article from:
- Indian Journal of Dermatology, Venereology and Leprology
- Article date:
- September 1, 2007
- Author:
CopyrightCopyright Medknow Publications Sep/Oct 2007. Provided by ProQuest LLC. (Hide copyright information)
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Introduction
Nickel was first isolated by the Swedish chemist Cronstedt in 1751. It is the twenty-second most abundant element and the seventh most abundant transitional metal with an atomic number of 28 in the periodic table with an atomic weight of 58.71. It has five naturally occurring isotopes. It is a tough, silvery-white heavy metal and is highly resistant to attack by air and water. It occurs in igneous rocks, as a free metal and together with iron; it is also a component of the earth core. Nickel also occurs in living organisms, mainly in plants. Nickel forms numerous alloys with other metals. Its alloy with iron, nickel steel, is extremely tough and corrosion resistant.
Most of the ...