Silicic Acid Esters | Silicates | Polysilicates | Orthosilicates | Silane Passivating Agents
 

SiSiB® PC5420

Tetraethoxysilane (TEOS) .
Synonym: Тетраэтокси-силан
Tetraethyl Orthosilicate
Ethyl Polysilicate 28
Ethyl Silicate 28


Chemical Structure


Introduction

Silicon esters are silicon compounds that contain an oxygen bridge from silicon to an organic group, for example, Si-OR. SiSiB PC5420, the ethyl ester of orthosilicic acid, is a colorless, low-viscosity liquid with an SiO2 content of 28.5%.


Typical Physical Properties

Chemical Name:
Tetraethoxysilane
CAS No.:
78-10-4
EINECS No.:
232-136-3
Formula:
C4H20O4Si
Molecular Weight:
208.3
Boiling Point:
168°C [760mmHg]
Flash Point:
46°C
 
Color and Appearance:
Colorless transparent liquid
Density [25°C]:
0.934
Refractive Index [25°C]:
1.3838 [25°C]
Purity:
Min.99.0% by GC

Applications

The tetraalkyl orthosilicates ( also called orthosilicic acid esters) most commonly used as starting materials for sol-gel.

Polysilicic acidesters are condensation products obtained by incomplete hydrolysis or orthosilicic acid esters. They are also be used as starting materials for the sol-gel process.

SiSiB PC5420 may be used as an inorganic binder for refactory fillers and pigments, like precision investment castings.

SiSiB PC5420 may be used as a second backup casting coating. It cures faster than colloidal silica system.

SiSiB PC5420 may be hydrolyzed to form silicon dioxide (silica).

SiSiB PC5420 may be used as a starting material for sol-gel process.

SiSiB PC5420 may be used as a crosslinking agent for silicone sealant.

SiSiB PC5420 may be used as a drying agent in sealing compositions.

SiSiB PC5420 SiSiB PC5420 may be used as a chemical intermediate.


Packings


Net weight 190Kg steel drum or 900Kg IBC container, for more details, please visit Packing Centre.

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