Niobium Properties, Molecular Formula, Applications - WorldOfChemicals
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Niobium Properties




Niobium is a ductile transition metal. It is found in the minerals pyrochlore, the main commercial source for niobium, and columbite. It is used mostly in alloys, the largest part in special steel such as that used in gas pipelines. The temperature stability of niobium-containing superalloys is important for its use in jet and rocket engines. Niobium is used in various superconducting materials. Other applications of niobium include its use in welding, nuclear industries, electronics, optics, numismatics and jewelry. In the last two applications, niobium's low toxicity and ability to be colored by anodization are particular advantages.

Chemical Properties

Appearance Shiny Grey Metallic Solid
Atomic Number 41
Atomic Weight 92.964 g/mol
Block d
Boiling Point 4744 °C
CAS Number 7440-03-1
Class 4.1
Crystal Structure Cubic Body-Centered
Density 8.57 g/cm3
EINECS Number 231-113-5
Electron Configuration 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d4 5s1
Group 5
Ionization Energy 652.1 KJ/mol
Melting Point 2477 °C
Oxidation State 5,4,3,2,-1
PG 2
Period 5
RTECS Number QT9900000
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