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215791

Sigma-Aldrich

Niobium(V) chloride

99%

Synonym(s):

Niobium pentachloride

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About This Item

Linear Formula:
NbCl5
CAS Number:
10026-12-7
Molecular Weight:
270.17
EC Number:
233-059-8
MDL number:
MFCD00011127
UNSPSC Code:
12352302
PubChem Substance ID:
24852915
NACRES:
NA.23

Quality Level

100

Assay

99%

form

powder

technique(s)

FTIR: suitable

bp

254 °C (lit.)

mp

204.7 °C (lit.)

density

2.75 g/mL at 25 °C (lit.)

SMILES string

Cl[Nb](Cl)(Cl)(Cl)Cl

InChI

1S/5ClH.Nb/h5*1H;/q;;;;;+5/p-5

InChI key

YHBDIEWMOMLKOO-UHFFFAOYSA-I

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General description

Niobium(V) chloride is a yellow crystalline solid with a high melting point. It is widely used in the field of catalysis, semiconductor devices, and batteries. It is a highly specialized Lewis acid in chemical synthesis, activating alkenes for the carbonyl-ene reaction and the Diels-Alder process.

Application

Niobium(V) chloride can be used:
  • As a precursor to prepare K2NbF7:Mn4+ red phosphors for white light-emitting diode(LED) devices.
  • As a Lewis acid to synthesize fluorescein dye derivatives for dye-sensitized solar cells.
  • As a dopant to enhance the thermoelectric properties of n-type tin selenide.
  • As a precursor to synthesize Nb2O5 microspheres and TiNb2O7 nanoparticles as high-rate capability and long-cycle-life anode materials for lithium-ion batteries .
Used to form mixed chloro-aryloxide compounds, such as [Nb(OC6H3-2,6-i-Pr2)2Cl3]2, which form pyridine or phosphine adducts with a distorted six-coordinate geometry.†

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302,H314,H335

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

EUH014

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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A green synthetic route to K2NbF7:Mn4+ red phosphor for the application in warm white LED devices
Hong Ming, et al.
Optical Materials, 86, 352-359 (2018)
NbCl5-Promoted Synthesis of Fluorescein Dye Derivatives: Spectroscopic and Spectrometric Characterization and Their Application in Dye-Sensitized Solar Cells
Bruno Henrique Sacoman Torquato da Silva, et al.
ChemPlusChem, 82, 261-269 (2017)
TiNb2O7 nanoparticles assembled into hierarchical microspheres as high-rate capability and long-cycle-life anode materials for lithium ion batteries
Hongsen Li, et al.
Nanoscale, 7, 619-624 (2015)
Investigating the thermoelectric performance of n-type SnSe: the synergistic effect of NbCl 5 doping and dislocation engineering
Jianfeng Cai, et al.
Journal of Materials Chemistry, 8, 13244-13252 (2020)
Facile synthesis of porous Nb2O5 microspheres as anodes for lithium-ion batteries
Guangyin Liu, et al.
International Journal of Hydrogen Energy, 42, 6065-6071 (2017)
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