Synonym: Columbium, Niobium element
CAS Number 7440-03-1 | MDL Number MFCD00011126 | EC Number 231-113-5

Niobium Chemical Structure

Product CodeNB0031
CAS Number7440-03-1
Assay (purity)99.9%
Purity methodby elemental analysis
Molecular weight92.91
Appearancegrey solid
Melting point2477C
Boiling point4927C
Molecular formulaNb
Linear formulaNb

Ereztech manufactures and sells this product in small and bulk volumes. Glass ampules, bottles or metal ampules or bubblers are available for packaging. For additional analytical information or details about purchasing Niobium contact us at

Safety information

Signal wordDANGER
Hazard statementsH228
Precautionary statementsP210, P240, P241, P280, P370+P378
Transport descriptionMETAL POWDERS, FLAMMABLE, N.O.S.
Hazardous class4.1
Packing groupII
In TSCA registryNo (sold for research and development usage only)

Certificates of analysis (CoA)

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External identifiers for Columbium

Pubchem CID23936
IUPAC Nameniobium
InchI IdentifierInChI=1S/Nb

Ereztech synthesizes and sells additional NB-compounds.

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