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

SiSiB® PC5410

Tetramethoxysilane (TMOS) .
Synonym: Tetramethyl Orthosilicate


Chemical Structure


Introduction

Silicon esters are silicon compounds that contain an oxygen bridge from silicon to an organic group, for example, Si-OR. SiSiB® PC5410, the methyl ester of orthosilicic acid, is a colorless, low-viscosity liquid. It is industrially the most important of the tetraalkyl silicates.

Typical Physical Properties

Chemical Name:
Tetramethoxysilane
CAS No.:
681-84-5
EINECS No.:
211-656-4
Formula:
C4H12O4Si
Molecular Weight:
152.22
Silica Content:
39%
Boiling Point:
122°C [760mmHg]
Flash Point:
26°C
 
Color and Appearance:
Colorless transparent liquid
Density [25°C]:
1.032
Refractive Index [25°C]:
1.3688 [20°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® PC5410 is used as crosslinkers in silicone rubber systems. SiSiB® PC5410 is used as drying agents in sealing compositions. SiSiB® PC5410 is used as an important starting material for sol-gel processes.

Packings

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

Technical Library

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