Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® PC5420
SiSiB® PC5420

Tetraethoxysilane

SiSiB® PC5420, the ethyl ester of orthosilicic acid, is a colorless, low-viscosity liquid with an SiO2 content of 28.5%. It is also called as Tetraethyl orthosilicate, Ethyl Polysilicate 28#.


SiSiB® PC5420 tetraethoxysilane is the quivalent of Momentive's TEOS, Dow's Z-6697, Wacker's Ethyl SILICATE TES28, Evonik's Dynasil A, ShinEtsu's KBE-04.

SiSiB® PC5420

Technical Data


CAS No.

78-10-4

EINECS No.

201-083-8

Formula

C8H20O4Si

Molecular Weight

208.33

Boiling Point

168°C [760mmHg]

Flash Point

46°C



Color and Appearance

Colorless transparent liquid

Density 25/25°C

0.934

Refractive Index

1.3838 [20°C]

Min. Purity

99.0%


Application


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


  • SiSiB® PC5420 orthosilicate 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 binder in zinc-rich (corrosion resistant) coating.


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


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


Packing and Storage


  • SiSiB® PC5420 tetraethoxysilane is supplied in 190Kg steel drum or 900Kg IBC container.


  • In the unopened original container SiSiB® PC5420 tetraethoxysilane has a shelf life of one year in a dry and cool place.


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SiSiB® PC5420