339202

Niobium(V) ethoxide

99.95% trace metals basis

• Synonim(y): NbOEt, Niobium ethanolate, Niobium ethylate, Niobium pentaethoxide, Pentaethoxyniobium
• Wzór liniowy: Nb(OCH₂CH₃)₅
• Numer CAS: 3236-82-6
• Masa cząsteczkowa: 318.21
• UNSPSC Code: 12352103
• NACRES: NA.23
• PubChem Substance ID: 24860621
• EC Number: 221-795-2
• Beilstein/REAXYS Number: 3678883
• MDL number: MFCD00015122

Właściwości

• Quality Segment: 100
• assay: 99.95% trace metals basis
• form: liquid
• reaction suitability: core: niobium
• greener alternative product characteristics: Design for Energy Efficiency; Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Sustainability features
• refractive index: n20/D 1.516 (lit.)
• bp: 142 °C/0.1 mmHg (lit.)
• mp: 5-6 °C (lit.)
• density: 1.268 g/mL at 25 °C (lit.)
• SMILES string: CCO[Nb](OCC)(OCC)(OCC)OCC
• InChI: 1S/5C2H5O.Nb/c5*1-2-3;/h5*2H2,1H3;/q5*-1;+5
• InChI key: ZTILUDNICMILKJ-UHFFFAOYSA-N

Opis

General description

We are committed to bringing you Greener Alternative Products, which adhere to one of the four categories of Greener Alternatives. This is an enabling product and can be used as a precursor to make perovskite oxides, which promote thermoelectric heat-to-electricity conversion, improving energy efficiency. Click here for more information.

Niobium(V) ethoxide is a metal-organic compound that dimerizes in solution to form Nb₂(OEt)₁₀ molecules. At room temperature, it is a colorless liquid that is miscible with some organic solvents, but which hydrolyzes readily. Niobium(V) ethoxide freezes at 5 °C and boils at 142 °C at 0.1 mmHg. It can be synthesized by the electrochemical reaction of ethanol with niobium plate and stainless-steel electrodes in the presence of tetraethylammonium chloride (TEAC) as the conductive additive.

Application

Niobium(V) ethoxide is a synthetic precursor for niobium oxides, for example Nb₂O₅ , NaNbO₃ , andTiNb₂O₇. Niobium(V) ethoxide is commonly used in colloidal solution-based syntheses like sol-gel processing and electrospinning. These chemistries allow researchers to control the microstructure to form gels , nanofibers , nanotubes , and microspheres. Niobium(V) ethoxide is also commonly added to other metal alkoxides to dope metal oxides, most commonly titania, with niobium.

Because of its low boiling point and low decomposition temperature (~325-350 °C),niobium(V) ethoxide is also used as a precursor in atomic-layer deposition, chemical vapor deposition, and metal-organic chemical vapor deposition of niobium oxides.

It can also be used as a dopant to prepare Nb-doped TiO₂ photoanode for dye-sensitized solar cells (DSSC). The doping of Nb lowers the conduction band of TiO₂ enhancing electron injection and transfer ability of TiO₂ photoanode. This results in a significant increase in the performance of DSSC.

Features and Benefits

The purity and volatility of Niobium(V) ethoxide makeit a suitable precursor for atomic layer deposition and chemical vapordeposition of niobium oxide.

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS02
• Słowo ostrzegawcze: Warning
• Kody zagrożeń: H226
• Ostrzeżenia: P210 - P233 - P240 - P241 - P242 - P243
• Hazard Classifications: Flam. Liq. 3
• Klasa składowania: 3 - Flammable liquids
• Co się dzieje?: WGK 3
• Temperatura zapłonu (°F): 96.8 °F - closed cup
• Temperatura zapłonu (°C): 36 °C - closed cup
• PPE (środki ochrony indywidualnej): Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter