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203920

Sigma-Aldrich

Niobium(V) oxide

99.99% trace metals basis

Sinonimo/i:

Niobium pentoxide

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About This Item

Formula empirica (notazione di Hill):
Nb2O5
Numero CAS:
1313-96-8
Peso molecolare:
265.81
Numero CE:
215-213-6
Numero MDL:
MFCD00011128
Codice UNSPSC:
12352303
eCl@ss:
38180502
ID PubChem:
24852077
NACRES:
NA.23

Livello qualitativo

100

Saggio

99.99% trace metals basis

Stato

powder

Densità

4.47 g/mL at 25 °C (lit.)

Stringa SMILE

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

InChI

1S/2Nb.5O
ZKATWMILCYLAPD-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

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.

Applicazioni

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.

Caratteristiche e vantaggi

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

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

nwg

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

dust mask type N95 (US), Eyeshields, Gloves

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Certificati d'analisi (COA)

Lot/Batch Number
MKCP9331
MKCM9619
MKCM3032
MKCK5398
MKCJ3536

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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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Global Trade Item Number

SKUGTIN
203920-250G4061838766519
203920-10G4061838766502
203920-50G4061838766526

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