Niobium Powder



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Product Code Available Product Forms Request A Quote
NB-M-02-P (2N) 99% Niobium Powder Request
NB-M-03-P (3N) 99.9% Niobium Powder Request
NB-M-04-P (4N) 99.99% Niobium Powder Request
NB-M-05-P (5N) 99.999% Niobium Powder Request


Molecular Weight 92.9
Appearance Silvery
Melting Point 2468 °C
Boiling Point 4742 °C
Density 8.57 g/cm3
Tensile Strength N/A
Thermal Conductivity 0.537 W/cm/K @ 298.2 K
Electronegativity 1.6 Paulings
Specific Heat 0.064 Cal/g/K @ 25 °C
Heat of Vaporization N/A
Heat of Fusion 6.5 Cal/gm mole

Health & Safety Info  |  MSDS / SDS

Signal Word Danger
Hazard Statements H250
Hazard Codes F
Risk Codes 17
Safety Statements 6
RTECS Number QT9900000
Transport Information UN 1383 4.2/PG 1
WGK Germany nwg
Globally Harmonized System of Classification and Labelling (GHS) N/A


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 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.

Chemical Identifiers

Formula Nb
CAS 7440-03-1
Pubchem CID 23936
MDL MFCD00011126
EC No. 231-113-5
Beilstein Registry No. N/A
InchI Identifier InChI=1S/Nb

Packaging Specifications

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.

Related Products & Element Information

See more Niobium products. Niobium (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. In its elemental form, niobium has a gray metallic appearance. Elemental NiobiumNiobium 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.