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262722

Sigma-Aldrich

Niobium

powder, <45 μm, 99.8% trace metals basis

Synonyme(s) :

Columbium

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About This Item

Formule empirique (notation de Hill):
Nb
Numéro CAS:
7440-03-1
Poids moléculaire :
92.91
Numéro CE :
231-113-5
Numéro MDL:
MFCD00011126
Code UNSPSC :
12141730
ID de substance PubChem :
24855922
Nomenclature NACRES :
NA.23

Pureté

99.8% trace metals basis

Forme

powder

Résistivité

13-16 μΩ-cm, 20°C

Taille des particules

<45 μm

Point d'ébullition

4742 °C (lit.)

Pf

2468 °C (lit.)

Densité

8.57 g/mL at 25 °C (lit.)

Chaîne SMILES 

[Nb]

InChI

1S/Nb

Clé InChI

GUCVJGMIXFAOAE-UHFFFAOYSA-N

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Catégories apparentées

Pictogrammes

Flame
GHS02

Mention d'avertissement

Danger

Mentions de danger

H228

Classification des risques

Flam. Sol. 1

Code de la classe de stockage

4.1B - Flammable solid hazardous materials

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type N95 (US)

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Kulbir Kaur Ghuman et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 25(8), 085501-085501 (2013-01-25)
A systematic study of electronic structure and band gap states is conducted to analyze the monodoping and charge compensated codoping of rutile TiO(2) with Rh and Nb, using the DFT + U approach. Doping of rutile TiO(2) with Rh atoms induces hybridized
M I Tsindlekht et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 25(8), 085701-085701 (2013-01-31)
We report results of measurements of the ac conductivity of a Nb superconducting thin film in a swept dc magnetic field. In the mixed state the swept dc field creates vortices at the film surface which pass through the film
Christos D Malliakas et al.
Journal of the American Chemical Society, 135(5), 1719-1722 (2013-01-23)
2H-NbSe(2) is a canonical Charge-Density-Wave (CDW) layered material the structural details of which remained elusive. We report the detailed structure of 2H-NbSe(2) below the CDW transition using a (3 + 2)-dimensional crystallographic approach on single crystal X-ray diffraction data collected
Anjan Soumyanarayanan et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(5), 1623-1627 (2013-01-16)
The competition between proximate electronic phases produces a complex phenomenology in strongly correlated systems. In particular, fluctuations associated with periodic charge or spin modulations, known as density waves, may lead to exotic superconductivity in several correlated materials. However, density waves
Evgeniy Papulovskiy et al.
Physical chemistry chemical physics : PCCP, 15(14), 5115-5131 (2013-03-02)
Ab initio DFT calculations of (93)Nb NMR parameters using the NMR-CASTEP code were performed for a series of over fifty individual niobates, and a good agreement has been found with experimental NMR parameters. New experimental and calculated (93)Nb NMR data
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