Niobium is a chemical element, symbol Nb, atomic number 41 (41 protons and 41 electrons) and atomic mass 92.9 u. It is a transition element belonging to the group 5 or 5B of the periodic classification of the elements. The name derives from the Greek goddess NÃ­obe, daughter of Dione and Tantalus - the latter, in turn gave name to another element of the family 5B, tantalum. It is used mainly in alloys of steel for the production of conductive tubes of fluids. Under normal conditions, it is solid. It was discovered in 1801 by the Englishman Charles Hatchett [1].It is used to bond in the manufacture of specialty steels and is one of the most resistant metals to both corrosion and external temperatures. It is also a superconducting metal and its melting point (melting) is at 2,468 Â°C, while its evaporation point is at 4744 Â°C. If added (in grams) proportionally to the ton of steel, it can give greater tenacity and lightness to the material [2]. Nowadays, this mineral element is used in the manufacture of air turbines, automobiles, gas pipelines, tomographs used for magnetic resonance imaging, as well as optical lenses, high intensity lamps, electronic goods and even piercings in the aerospace, nuclear.

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