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262722

Sigma-Aldrich

Niobium

powder, <45 μm, 99.8% trace metals basis

Synonym(s):

Columbium

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About This Item

Empirical Formula (Hill Notation):
Nb
CAS Number:
7440-03-1
Molecular Weight:
92.91
EC Number:
231-113-5
MDL number:
MFCD00011126
UNSPSC Code:
12141730
PubChem Substance ID:
24855922
NACRES:
NA.23

Quality Level

100

Assay

99.8% trace metals basis

form

powder

resistivity

13-16 μΩ-cm, 20°C

particle size

<45 μm

bp

4742 °C (lit.)

mp

2468 °C (lit.)

density

8.57 g/mL at 25 °C (lit.)

SMILES string

[Nb]

InChI

1S/Nb

InChI key

GUCVJGMIXFAOAE-UHFFFAOYSA-N

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Related Categories

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H228

Hazard Classifications

Flam. Sol. 1

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW8210
MKCT4473
MKCS8761
MKCJ0670
MKCS6578

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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
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
Jason S Pelc et al.
Optics express, 20(25), 27510-27519 (2012-12-25)
Long-distance quantum communication networks require appropriate interfaces between matter qubit-based nodes and low-loss photonic quantum channels. We implement a downconversion quantum interface, where the single photons emitted from a semiconductor quantum dot at 910 nm are downconverted to 1560 nm
Tzyy-Jiann Wang et al.
Optics express, 20(27), 28119-28124 (2012-12-25)
We report ultra-smooth LiNbO(3) microdisk resonators fabricated by selective ion implantation, chemical etching, and thermal treatment. The undercut microdisk structure is produced by chemically etching the buried lattice damage layer formed by selective ion implantation. By thermal treatment, surface tension
Huaxiang Yi et al.
Optics express, 20(25), 27562-27568 (2012-12-25)
We demonstrate error-free 80km transmission by a silicon carrier-depletion Mach-Zehnder modulator at 10Gbps and the power penalty is as low as 1.15dB. The devices were evaluated through the bit-error-rate characterizations under the system-level analysis. The silicon Mach-Zehnder modulator was also
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