Niobium Powder

High Purity Nb Powder
CAS 7440-03-1

Product Product Code Order or Specifications
(2N) 99% Niobium Powder NB-M-02-P Contact American Elements
(3N) 99.9% Niobium Powder NB-M-03-P Contact American Elements
(4N) 99.99% Niobium Powder NB-M-04-P Contact American Elements
(5N) 99.999% Niobium Powder NB-M-05-P Contact American Elements

Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.
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

Ultra High Purity Metal PowdersAmerican Elements specializes in producing high purity Niobium Powder with the smallest possible average grain sizes for use in preparation of pressed and bonded sputtering targets and in Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD) processes including Thermal and Electron Beam (E-Beam) Evaporation, Low Temperature Organic Evaporation, Atomic Layer Deposition (ALD), Metallic-Organic and Chemical Vapor Deposition (MOCVD). Powders are also useful in any application where high surface areas are desired such as water treatment and in fuel cell and solar applications. Nanoparticles (See also Nanotechnology Information and Quantum Dots) also produce very high surface areas. Our standard Powder particle sizes average in the range of - 325 mesh, - 100 mesh, 10-50 microns and submicron (< 1 micron). We can also provide many materials in the nanoscale range. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. See safety data and research below and pricing/lead time above. We also produce Niobium as rod, ingot, pieces, pellets, disc, granules, 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 Information Center.


Niobium Metal Niobium Titanium Alloy Niobium 2-Ethylhexanoate Cobalt Niobium Zirconium Alloy Niobium Fluoride
Niobium Nanoparticles Niobium Pellets Niobium Chloride Niobium Powder Niobium Foil
Niobium Sulfide Niobium Oxide Niobium Sputtering Target Niobium Oxide Pellets Niobium Wire
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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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Production Catalog Available in 36 Countries & Languages

Recent Research & Development for Niobium

  • Alkyl chlorido hydridotris(3,5-dimethylpyrazolyl)borate imido niobium and tantalum(v) complexes: synthesis, conformational states of alkyl groups in solid and solution, X-ray diffraction and multinuclear magnetic resonance spectroscopy studies. Galájov M, García C, Gómez M, Gómez-Sal P. Dalton Trans. 2014.
  • Serum titanium, niobium and aluminium levels two years following instrumented spinal fusion in children: does implant surface area predict serum metal ion levels? Cundy TP, Cundy WJ, Antoniou G, Sutherland LM, Freeman BJ, Cundy PJ. Eur Spine J. 2014.
  • Intercalation-Controlled Cyclodehydration of Sorbitol in Water over Layered-Niobium-Molybdate Solid Acid. Morita Y, Furusato S, Takagaki A, Hayashi S, Kikuchi R, Oyama ST. ChemSusChem. 2014.
  • Effect of Sr on the bioactivity and corrosion resistance of nanoporous niobium oxide coating for orthopaedic applications. Pauline SA, Rajendran N. Mater Sci Eng C Mater Biol Appl. 2014 Mar.
  • Facile synthesis and unique photocatalytic property of niobium pentoxide hollow spheres and the high optoelectronic performance of their nanofilm. Li W, Gao R, Chen M, Zhou S, Wu L. J Colloid Interface Sci. 2013 Dec.
  • Nanorod Niobium Oxide as Powerful Catalysts for an All Vanadium Redox Flow Battery. Li B, Gu M, Nie Z, Wei X, Wang C, Sprenkle V, Wang W. Nano Lett. 2013 Dec.
  • On the lithiation reaction of niobium oxide: structural and electronic properties of Li1.714Nb2O5. Catti M, Ghaani MR. Phys Chem Chem Phys. 2013 Dec.
  • Nano-structured ternary niobium titanium nitrides as durable non-carbon supports for oxygen reduction reaction. Yang M, Van Wassen AR, Guarecuco R, Abruña HD, Disalvo FJ. Chem Commun (Camb). 2013 Oct.
  • Hydrothermally formed functional niobium oxide doped tungsten nanorods. Yu J, Yuan L, Wen H, Shafiei M, Field MR, Liang J, Yang J, Liu ZF, Wlodarski W, Motta N, Li YX, Zhang G, Kalantar-Zadeh K, Lai PT. Nanotechnology. 2013 Dec.
  • On the lithiation reaction of niobium oxide: structural and electronic properties of Li1.714Nb2O5. Catti M, Ghaani MR. Phys Chem Chem Phys. 2013 Dec.
  • New Two-Dimensional Niobium and Vanadium Carbides as Promising Materials for Li-Ion Batteries. Naguib M, Halim J, Lu J, Cook KM, Hultman L, Gogotsi Y, Barsoum MW. J Am Chem Soc. 2013 Oct.
  • Method of low tantalum amounts determination in niobium and its compounds by ICP-OES technique. Smolik M, Turkowska M. Talanta. 2013 Oct.
  • Long-Lived Radical Cation Salts Obtained by Interaction of Monocyclic Arenes with Niobium and Tantalum Pentahalides at Room Temperature: EPR and DFT Studies. Marchetti F, Pampaloni G, Pinzino C. Chemistry. 2013 Oct.
  • Niobium-based superconducting nano-device fabrication using all-metal suspended masks. Samaddar S, van Zanten D, Fay A, Sacépé B, Courtois H, Winkelmann CB. Nanotechnology. 2013 Sep.
  • Bonding preference of carbon, nitrogen, and oxygen in niobium-based rock-salt structures. Miura A, Takei T, Kumada N, Wada S, Magome E, Moriyoshi C, Kuroiwa Y. Inorg Chem. 2013.
  • Unexpected mild C-N bond cleavage mediated by guanidine coordination to a niobium iminocarbamoyl complex. Elorriaga D, Carrillo-Hermosilla F, Antiñolo A, López-Solera I, Fernández-Galán R, Villaseñor E. Chem Commun (Camb). 2013 Aug.
  • Long-Lived Radical Cation Salts Obtained by Interaction of Monocyclic Arenes with Niobium and Tantalum Pentahalides at Room Temperature: EPR and DFT Studies. Marchetti F, Pampaloni G, Pinzino C. Chemistry. 2013 Aug.
  • Anode properties of magnesium hydride catalyzed with niobium oxide for an all solid-state lithium-ion battery. Ikeda S, Ichikawa T, Kawahito K, Hirabayashi K, Miyaoka H, Kojima Y. Chem Commun (Camb). 2013 Aug.
  • Imino phenoxide complexes of niobium and tantalum as catalysts for the polymerization of lactides, e-caprolactone and ethylene. Saha TK, Mandal M, Thunga M, Chakraborty D, Ramkumar V. Dalton Trans. 2013 Jul.
  • Diameter-dependent photocatalytic performance of niobium pentoxide nanowires. Saito K, Kudo A. Dalton Trans. 2013 May.