Triethoxysilane

Structural formula
General
Surname	Triethoxysilane
Molecular formula	C 6 H 16 O 3 Si
Brief description	colorless liquid
External identifiers / databases
CAS number 998-30-1 EC number 213-650-7 ECHA InfoCard 100.012.409 PubChem 13830 Wikidata Q1100789
properties
Molar mass	164.28 g mol −1
Physical state	liquid
density	0.885 g cm −3
Melting point	−170 ° C
boiling point	134-135 ° C
Vapor pressure	27 hPa (20 ° C)
solubility	soluble in diethyl ether, THF, alkanes, aromatic and chlorinated solvents
Refractive index	1.377 (20 ° C)
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 226-302-330-315-318 P: 260-271-280-302 + 352-304 + 340-305 + 351 + 338
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

Triethoxysilane is a chemical compound from the group of organosilicon compounds . The structure corresponds to triethyl orthoformate .

Extraction and presentation

Triethoxysilane can be obtained by reacting trichlorosilane with ethanol .

${\displaystyle \mathrm {SiHCl_{3}+\ 3C_{2}H_{5}OH\ \rightarrow \ SiH(OC_{2}H_{5})_{3}\ +\ 3\ HCl} }$

It is also possible to produce it by reacting ethanol with silicon using copper chloride as a catalyst.

properties

Triethoxysilane is a flammable colorless liquid.

use

Triethoxysilane is used for the production of coupling agents , silicone rubber , elastomers and special monomers . It is a useful reagent for the hydrosilation of carbon-carbon multiple bonds and a reducing agent for carbonyl groups .

Individual evidence

1. ↑ ^{a b c d e f g h i} Entry on triethoxysilane in the GESTIS substance database of the IFA , accessed on January 10, 2017(JavaScript required) .
2. ↑ ^{a b} Robert JP Corriu, Christian Guerin, Karl A. Scheidt, Robert B. Lettan, George Nikonov, Lidia Yunnikova: Encyclopedia of Reagents for Organic Synthesis . John Wiley & Sons, Ltd, 2001, ISBN 978-0-470-84289-8 , Triethoxysilane.
3. ↑ Data sheet Triethoxysilane, 95% from Sigma-Aldrich , accessed on September 18, 2016 ( PDF ).
4. ↑ Khananashvili, Mukbaniani, Gennady Zaikov: Element Organic monomer: Technology, Properties, Applications . CRC Press, 2006, ISBN 978-90-04-15260-1 , pp. 110 ( limited preview in Google Book search).
5. ↑ ^{a b} Entry on triethoxysilane in the Hazardous Substances Data Bank , accessed on September 18, 2016.