Ethyl Polysilicate TEOS Crosile® Si32

Ethyl silicate is also known as tetraethyl silicate and tetraethoxysilane. Colorless transparent liquid with special odor.

Item NO.:
Crosile® Si32
Chemical Name:
Tetraethyl orthosilicate
Chemical Formula:
C8H20O4Si
CAS No.:
78-10-4;1109-96-2;11099-06-2
EINECS No:
201-083-8
Properties:
Colorless transparent liquid; Soluble in a variety of organic solvents; Easy to hydrolysis; Able for condensation to form polysiloxanes; Easy to polymerize in the presence of overheating, light and peroxide.

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Ethyl Polysilicate TEOS Crosile® Si32

Chemical Properties

Crosile® Si32 is an ethyl polysilicate with a silica (SiO₂) content of approximately 32%. It is a partially hydrolyzed and condensed form of tetraethyl orthosilicate (TEOS), offering good solubility, low viscosity, and excellent hydrolysis reactivity.

After hydrolysis and condensation, Crosile® Si32 forms a durable silica network with excellent heat resistance, chemical resistance, and adhesion properties. It is widely used as a binder and silica precursor in coatings, precision casting, ceramic materials, and specialty chemical applications.

Equivalent type

Ethyl silicate, TEOS, Tetraethoxysilanemincolorlessliq, Tetraethoxysilane, Silicon ethoxide, Tetraethoxysilan, Silicon tetraethoxide, Silane Coupling Agent Si-32, Tetraethoxysilane, Silicic acid, ethyl ester, Ethyl polysilicate, Ethyl Silicate 32

Specifications

Test Item	Target Values(Spec, Limits)
Appearance	Colorless Transparent Liquid
Silica Content	32%
Flash Point	38°C
Silicon dioxide content	96%
Refractive Index	32%