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Sigma-Aldrich

Niobium(V) oxide

99.99% trace metals basis

Synonym(s):

Niobium pentoxide

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About This Item

Empirical Formula (Hill Notation):
Nb2O5
CAS Number:
Molecular Weight:
265.81
EC Number:
MDL number:
UNSPSC Code:
12352303
eCl@ss:
38180502
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99.99% trace metals basis

form

powder

density

4.47 g/mL at 25 °C (lit.)

SMILES string

O=[Nb](=O)O[Nb](=O)=O

InChI

1S/2Nb.5O

InChI key

ZKATWMILCYLAPD-UHFFFAOYSA-N

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General description

Niobium(V) oxide, also known as niobium pentoxide, is a white crystalline powder. It is a refractory metal oxide with a high melting point of over 2500 °C and high chemical stability, including to oxygen and moisture. Niobium(V) oxide is mainly used as a raw material in the production of niobium and niobium alloys, as a catalyst in chemical reactions, and as a refractory material in high-temperature applications. It is also used as a dielectric material in capacitors and as a pigment in ceramics and glasses.

Application

Applied in the solid state formation of an unusual cation deficient perovskite, Ba7Nb4MoO20.
Promising results were obtained using niobium(V) oxide as an alternate electrode to lithium metal in advanced fuel cells.

Features and Benefits

Applied in the solid state formation of an unusual cation deficient perovskite, Ba7Nb4MoO20.

Storage Class

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Garcia-Gonzalez, E. et al.
Chemistry of Materials, 11, 433-433 (1999)
Jian-Lang Li et al.
Optics express, 16(14), 10841-10848 (2008-07-09)
Cylindrical vector beams were produced from laser diode end-pumped Nd:YAG ceramic microchip laser by use of two types of subwavelength multilayer gratings as the axisymmetric-polarization output couplers respectively. The grating mirrors are composed of high- and low-refractive- index (Nb(2)O(5)/SiO(2)) layers
The construction of high-nuclearity isopolyoxoniobates with pentagonal building blocks: [HNb27O76]16- and [H10Nb31O93(CO3)]23-.
Ryo Tsunashima et al.
Angewandte Chemie (International ed. in English), 49(1), 113-116 (2009-12-01)
Akiko Obata et al.
ACS applied materials & interfaces, 4(10), 5684-5690 (2012-10-04)
The effects of niobium ions released from 60CaO-30P(2)O(5)-(10-x)Na(2)O-xNb(2)O(5) (mol %, x = 0-10) glasses on MC3T3-E1 cell functions were evaluated by culture tests with two systems; cell culture on glass plates, or in culture media containing glass extracts. Alkaline phosphatase
Matthew D Pickett et al.
Nanotechnology, 23(21), 215202-215202 (2012-05-04)
We built and measured the dynamical current versus time behavior of nanoscale niobium oxide crosspoint devices which exhibited threshold switching (current-controlled negative differential resistance). The switching speeds of 110 × 110 nm(2) devices were found to be Δt(ON) = 700

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