Niobium(V) ethoxide
ALDRICH/339202 - 99.95% trace metals basis
Synonym: NbOEt; Niobium ethanolate; Niobium ethylate; Niobium pentaethoxide; Pentaethoxyniobium
CAS Number: 3236-82-6
Empirical Formula (Hill Notation): C10H25NbO5
Molecular Weight: 318.21
EC Number: 221-795-2
MDL Number: MFCD00015122
Linear Formula: Nb(OCH2CH3)5
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 339202-50G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 339202-5G
| assay | 99.95% trace metals basis |
| bp | 142 °C/0.1 mmHg (lit.) |
| density | 1.268 g/mL at 25 °C (lit.) |
| form | liquid |
| InChI | 1S/5C2H5O.Nb/c5*1-2-3;/h5 |
| InChI key | ZTILUDNICMILKJ-UHFFFAOYSA |
| mp | 5-6 °C (lit.) |
| reaction suitability | core: niobium |
| refractive index | n |
| SMILES string | CCO[Nb](OCC)(OCC)(OCC)OCC |
| 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. |
| General description: | 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. |
| Packaging: | 5, 50 g in glass bottle |
| Symbol |  GHS02 |
| Signal word | Warning |
| Hazard statements | H226 |
| Precautionary statements | P210 - P233 - P240 - P241 - P242 - P243 |
| Hazard Codes | C |
| Risk Statements | 10-34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 2920 3(8) / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 96.8 °F - closed cup |
| Flash Point(C) | 36 °C - closed cup |
| Purity | 99.95% trace metals basis |
| bp | 142 °C/0.1 mmHg (lit.) |
| mp | 5-6 °C (lit.) |
| Density | 1.268 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352103 |