Achievement

Products

Tetramethyl orthosilicate.
Synonym: Methyl silicate;Tetramethoxysilane;Silicon tetramethoxide

Chemical Structure

Introduction

Silicon esters are silicon compounds that contain an oxygen bridge from silicon to an organic group, for example, Si-OR. DP-931, 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:	Tetramethyl orthosilicate
CAS No.:	681-84-5
EINECS No.:	211-656-4
Empirical 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

SI-2081 can be used as an inorganic binder for refractory fillers and pigments, like precision investment castings.

SI-2081 can be used as a second backup casting coating. It cures faster than colloidal silica system.
SI-2081can be hydrolyzed to form silicon dioxide (silica).
SI-2081 can be used as a binder in zinc-rich (corrosion resistant) coating.
SI-2081can be used as a starting material for sol-gel process.
SI-2081can be used as a crosslinking agent for silicone sealant.
SI-2081 can be used as a drying agent in sealing compositions.
SI-2081 can be used as a chemical intermediate.

Packing

Net weight 200Kg steel drum