Niobium (V) ethoxide

Structural formula
General
Surname	Niobium (V) ethoxide
other names	Niobium ethanolate; Niobium ethoxide; Niobium pentaethoxide; Pentaethoxyniobium; NbOEt;
Molecular formula	C 10 H 25 NbO 5
Brief description	colorless to amber liquid
External identifiers / databases
EC number	221-795-2
ECHA InfoCard	100,019,814
PubChem	520571
ChemSpider	21241198
Wikidata	Q7039308
properties
Molar mass	318.21 g mol −1
Physical state	liquid
density	1.258 g cm −3
Melting point	6 ° C
boiling point	140-142 ° C (0.1 mmHg); 203 ° C;
solubility	miscible with organic solvents; Decomposes in water;
Refractive index	1.5160 (20 ° C)
safety instructions
H and P phrases	H: 226-314
	P: 210-280-301 + 330 + 331-305 + 351 + 338-310
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Niobium (V) ethoxide is a chemical compound of niobium from the group of ethanolates .

Extraction and presentation

Niobium (V) ethoxide can be obtained by reacting niobium (V) chloride with ethanol in the presence of ammonia . The compound can also be obtained electrochemically directly from niobium .

properties

Niobium (V) ethoxide is a colorless to amber colored liquid that is soluble in organic solvents . Decomposition occurs in water.

use

Niobium (V) ethoxide is used for the production of niobium (V) oxide and mixed metal oxides. It is also used for sol-gel processing of materials containing niobium oxides and mixed metal oxides. It is also used to manufacture ferroelectric nanomaterials, which consist of oxides of potassium , silicon and niobium.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l data sheet Niobium (V) ethoxide, 99.999% (metals basis), Ta <500ppm from AlfaAesar, accessed on March 29, 2020 ( PDF )(JavaScript required) .
^ ^A ^b ^c William M. Haynes: CRC Handbook of Chemistry and Physics . CRC Press, 2016, ISBN 978-1-4987-5429-3 , pp. 76 ( limited preview in Google Book search).
↑ Google Patents: US20020143200A1 - Process for preparing tantalum alkoxides and niobium alkoxides - Google Patents , accessed March 29, 2020
↑ DC Bradley, BN Chakravarti, W. Wardlaw: 460. Normal alkoxides of quinquevalent niobium. In: Journal of the Chemical Society. 1956, p. 2381, doi : 10.1039 / JR9560002381 .
↑ Ya-nan Cai, Sheng-hai Yang and a .: Electrochemical synthesis, characterization and thermal properties of niobium ethoxide. In: Journal of Central South University of Technology. 18, 2011, p. 73, doi : 10.1007 / s11771-011-0661-2 .

[Alfa-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l data sheet Niobium (V) ethoxide, 99.999% (metals basis), Ta <500ppm from AlfaAesar, accessed on March 29, 2020 ( PDF )(JavaScript required) .

[William_M._Haynes-2] A ^b ^c William M. Haynes: CRC Handbook of Chemistry and Physics . CRC Press, 2016, ISBN 978-1-4987-5429-3 , pp. 76 ( limited preview in Google Book search).

[google.com-3] Google Patents: US20020143200A1 - Process for preparing tantalum alkoxides and niobium alkoxides - Google Patents , accessed March 29, 2020

[DOI10.1039/JR9560002381-4] DC Bradley, BN Chakravarti, W. Wardlaw: 460. Normal alkoxides of quinquevalent niobium. In: Journal of the Chemical Society. 1956, p. 2381, doi : 10.1039 / JR9560002381 .

[DOI10.1007/s11771-011-0661-2-5] Ya-nan Cai, Sheng-hai Yang and a .: Electrochemical synthesis, characterization and thermal properties of niobium ethoxide. In: Journal of Central South University of Technology. 18, 2011, p. 73, doi : 10.1007 / s11771-011-0661-2 .