Niobium (Nb)
Discovered in 1801 in an ore, the name niobium officially replaced the name 'columbium' in 1950 after 100 years of controversy.
Niobium is a soft, shiny white, ductile metal that becomes bluish with long exposure to air. Eighteen isotopes of niobium are known.
It is found in niobite, niobite-tantalite, parochlore, and euxenite, and large deposits are associated with carbon-silicate rocks.
Niobium is used in arc-welding rods and for advanced airframe systems used in space travel. Its superconductive properties have helped to make magnets that retain their superconductivity in the presence of strong magnetic fields.
Strem, An Ascensus Company CAS# 7440-03-1. 5cm. Niobium rod (99.8%). MFCD00011126
CAS# 7440-03-1. 5cm. Niobium rod (99.8%). MFCD00011126. Molecular Weight: 92.91. Molecular Formula: Nb. Color/form: 6.35 mm dia. (~2.7g/cm) Strem# 41-0070. http://www.strem.com/catalog/v/41-0070/
Sigma Aldrich Fine Chemicals Biosciences Niobium IRMM(R), certified reference material, 0.02 mm foil | 7440-03-1 | MFCD00011126 | 1EA
Niobium IRMM(R), certified reference material, 0.02 mm foil | Mol Wt: 92.91 | 7440-03-1 | MFCD00011126 | 1EA
Sigma Aldrich Fine Chemicals Biosciences Niobium IRMM(R), certified reference material, 0.5 mm wire | 7440-03-1 | MFCD00011126 | 1EA
Niobium IRMM(R), certified reference material, 0.5 mm wire | Mol Wt: 92.91 | 7440-03-1 | MFCD00011126 | 1EA
Strem, An Ascensus Company CAS# 7440-03-1. 25cm. Niobium rod (99.8%). MFCD00011126
CAS# 7440-03-1. 25cm. Niobium rod (99.8%). MFCD00011126. Molecular Weight: 92.91. Molecular Formula: Nb. Color/form: 6.35 mm dia. (~2.7g/cm) Strem# 41-0070. http://www.strem.com/catalog/v/41-0070/
Thermo Scientific Chemicals Niobium Foil, 0.025 ± 0.015mm (0.001 ± 0.0006in) thick, 0.998, Thermo Scientific™
CAS: 3-1-7440 Molecular Formula: Nb Molecular Weight (g/mol): 92.91 MDL Number: MFCD00011126 InChI Key: GUCVJGMIXFAOAE-UHFFFAOYSA-N Synonym: columbium,element,niobium-93,powder,foil,rod,vn 1,foil, 0.25mm 0.01in thick,columbio,niobio PubChem CID: 23936 ChEBI: CHEBI:33344 IUPAC Name: niobium SMILES: [Nb]