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

SiSiB® PC5460

Tetra Butyl Glycol Silicate .
Synonym: Tetrakis(butoxyethoxy)silane

Countertype of DYNASIL BG

Chemical Structure


Silicon esters are silicon compounds that contain an oxygen bridge from silicon to an organic group, for example, Si-OR.

Typical Physical Properties

Chemical Name: Tetrakis(2-butoxyethyl)orthosilicate
CAS No.: 18765-38-3
EINECS No.: 242-560-0
Empirical Formula: C24H52O8Si
Molecular Weight: 496.75
Boiling Point: 205°C [1.3mmHg]
Flash Point: 92°C
Color and Appearance: Colorless transparent liquid
Density [25°C]: 0.970
Refractive Index [25°C]: 1.444 [20°C]
Active Content: Min.98.0% by GC


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® PC5460 can be used to modify suface of silica to obtain hydrophobic property. SiSiB® PC5460 can be used as crosslinkers for room temperature vulcanizing silicone sealant.


Net weight 210L steel drum or 1000L IBC container, for more details, please visit Packing Centre.

Technical Library

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Download 2010 SiSiB® SILANE Catalogue