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Sigma-Aldrich

Niobium(V) oxide

99.99% trace metals basis

Synonyme(s) :

Niobium pentoxide

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About This Item

Formule empirique (notation de Hill):
Nb2O5
Numéro CAS:
1313-96-8
Poids moléculaire :
265.81
Numéro CE :
215-213-6
Numéro MDL:
MFCD00011128
Code UNSPSC :
12352303
eCl@ss :
38180502
ID de substance PubChem :
24852077
Nomenclature NACRES :
NA.23

Pureté

99.99% trace metals basis

Forme

powder

Densité

4.47 g/mL at 25 °C (lit.)

Chaîne SMILES 

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

InChI

1S/2Nb.5O

Clé InChI

ZKATWMILCYLAPD-UHFFFAOYSA-N

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Description générale

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.

Caractéristiques et avantages

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

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves

Certificats d'analyse (COA)

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Niobium nitride powder, max. particle size 150 micron, weight 200 g, purity 99%

GF02895532

Niobium nitride

Garcia-Gonzalez, E. et al.
Chemistry of Materials, 11, 433-433 (1999)
Hye-Na Kim et al.
ACS applied materials & interfaces, 4(11), 5821-5825 (2012-11-17)
This paper describes the use of Nb₂O₅-coated TiO₂ 3D ordered porous electrodes in dye-sensitized solar cells. We employed bilayer inverse opal structures as a backbone of 3D porous structures, and the number of Nb₂O₅ coatings was controlled, determining the concentration
Edmar Martendal et al.
Journal of hazardous materials, 161(1), 450-456 (2008-05-06)
In this study a new method for chromium speciation in water using solid phase extraction coupled to a flow injection system and flame atomic absorption spectrometry was developed. The adsorption behavior of Cr(III) and Cr(VI) on Nb2O5-SiO2 allowed the selective
Robert L Karlinsey et al.
Bioinspiration & biomimetics, 1(1), 12-19 (2007-08-03)
The formation aspects of a polycrystalline self-assembled bioceramic leading to the nucleation of hard-tissue mineral from a supersaturated solution are discussed. Scanning electron imaging and surface-sensitive interrogations of the nucleated mineral indicated the presence of an intermediate amorphous layer encompassing
Y B Kiran et al.
Journal of agricultural and food chemistry, 55(17), 6933-6939 (2007-07-31)
Synthesis of some new substituted [3-(3-chloro-4-fluorophenyl)-2-oxo-3,4-dihydro-2H-2lambda(5)-benzo[e][1,3,2]oxazaphosphinin-2-yl]-(aryl/alkyl)methanols (7a-k) based on the Pudovick reaction was accomplished in the presence of niobium pentoxide (Nb(2)O(5)) without using an external chiral ligand. Nb(2)O(5) appears to form the metal complex intermediate catalyst system (6) by reacting
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