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Niobium Chunk

High Purity Nb Chunk
CAS 7440-03-1


Product Product Code Request Quote
(2N) 99% Niobium Chunk NB-M-02-CK Request Quote
(3N) 99.9% Niobium Chunk NB-M-03-CK Request Quote
(4N) 99.99% Niobium Chunk NB-M-04-CK Request Quote
(5N) 99.999% Niobium Chunk NB-M-05-CK Request Quote

CHEMICAL
IDENTIFIER
Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.
SMILES
Identifier
InChI
Identifier
InChI
Key
Nb 7440-03-1 24855926 23936 MFCD00011126 231-113-5 N/A [Nb] InChI=1S/Nb GUCVJGMIXFAOAE-UHFFFAOYSA-N

PROPERTIES Mol. Wt. Appearance Density Tensile Strength Melting Point Boiling Point Thermal Conductivity Electrical Resistivity Eletronegativity Specific Heat Heat of Vaporization Heat of Fusion MSDS
92.90 Silvery 8.57 gm/cc N/A 2468 °C 4742 °C 0.537 W/cm/K @ 298.2 K 12.5 microhm-cm @ 0°C 1.6 Paulings 0.064 Cal/g/K @ 25°C N/A 6.5 Cal/gm mole Safety Data Sheet

High Purity ChunkAmerican Elements specializes in producing high purity Niobium Chunks are produced using crystallization, solid state and other ultra high purification processes such as sublimation. Standard Chunk pieces are amorphous uniform pieces ranging in size from 5-15 mm. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into granules, rod, bar or plate form, as well as other machined shapes and through other processes such as nanoparticles and in the form of solutions and organometallics. We also produce Niobium as rod, pellets, powder, pieces, disc, ingot, wire, and in compound forms, such as oxide. Other shapes are available by request.

Niobium(Nb) atomic and molecular weight, atomic number and elemental symbolNiobium (atomic symbol: Nb, atomic number: 41) is a Block D, Group 5, Period 5 element with an atomic weight of 92.90638. Niobium Bohr ModelThe number of electrons in each of niobium's shells is 2, 8, 18, 12, 1 and its electron configuration is [Kr] 4d4 5s1. The niobium atom has a radius of 146 pm and a Van der Waals radius of 207 pm. Niobium was discovered by Charles Hatchett in 1801 and first isolated by Christian Wilhelm Blomstrand in 1864. Elemental NiobiumIn its elemental form, niobium has a gray metallic appearance. Niobium has the largest magnetic penetration depth of any element and is one of three elemental type-II superconductors (along with vanadium and technetium). Niobium is found in the minerals pyrochlore, its main commercial source, and columbite. The word Niobium originates from Niobe, daughter of mythical Greek king Tantalus. For more information on niobium, including properties, safety data, research, and American Elements' catalog of niobium products, visit the Niobium element page.

HEALTH, SAFETY & TRANSPORTATION INFORMATION
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PACKAGING SPECIFICATIONS FOR BULK & RESEARCH QUANTITIES
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.


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Recent Research & Development for Niobium

  • Niobium-nitrides derived from nitrogen splitting. Searles K, Carroll PJ, Chen CH, Pink M, Mindiola DJ. Chem Commun (Camb). 2015 Feb 28: Chem Commun (Camb)
  • Regioselective [2+2] and [4+2] cycloaddition reactivity in an asymmetric niobium(bisimido) moiety towards unsaturated organic molecules. Obenhuber AH, Gianetti TL, Bergman RG, Arnold J. Chem Commun (Camb). 2015 Jan 25: Chem Commun (Camb)
  • Niobium pentoxide as radiopacifying agent of calcium silicate-based material: evaluation of physicochemical and biological properties. Silva GF, Tanomaru-Filho M, Bernardi MI, Guerreiro-Tanomaru JM, Cerri PS. Clin Oral Investig. 2015 Feb 3. : Clin Oral Investig
  • Mild niobium-catalyzed [2 + 2 + 2] cycloaddition of sila-triynes: easy access to polysubstituted benzosilacyclobutenes. Simon C, Amatore M, Aubert C, Petit M. Org Lett. 2015 Feb 20: Org Lett
  • Reductive lithium insertion into B-cation deficient niobium perovskite oxides. Perejon A, Hayward MA. Dalton Trans. 2015 Jan 5. : Dalton Trans
  • Synthesis of α-Amino Acidato Derivatives of Niobium and Tantalum Pentahalides and Their Conversion into Iminium Salts. Bortoluzzi M, Hayatifar M, Marchetti F, Pampaloni G, Zacchini S. Inorg Chem. 2015 Apr 6. : Inorg Chem
  • Proton conductivity of naphthalene sulfonate formaldehyde resin-doped mesoporous niobium and tantalum oxide composites. Turley JP, Romer F, Trudeau ML, Dias ML, Smith ME, Hanna JV, Antonelli DM. ChemSusChem. 2015 Jan: ChemSusChem
  • Proton conductivity of naphthalene sulfonate formaldehyde resin-doped mesoporous niobium and tantalum oxide composites. Turley JP, Romer F, Trudeau ML, Dias ML, Smith ME, Hanna JV, Antonelli DM. ChemSusChem. 2015 Jan
  • Niobium-nitrides derived from nitrogen splitting. Searles K, Carroll PJ, Chen CH, Pink M, Mindiola DJ. Chem Commun (Camb). 2015 Feb 12
  • Redox-reversible niobium-doped strontium titanate decorated with in situ grown nickel nanocatalyst for high-temperature direct steam electrolysis. Yang L, Xie K, Xu S, Wu T, Zhou Q, Xie T, Wu Y. Dalton Trans. 2014 Oct 7