Description

Trimethoxychlorosilane is a versatile organosilicon compound primarily used as a key intermediate in the synthesis of advanced silicone polymers and functional silanes. Its value lies in its reactive chlorosilane and methoxy groups, which allow for controlled cross-linking and surface modification. This product is essential for manufacturers in the silicone resins, adhesives, and coatings industries, as well as for research and development of novel hybrid organic-inorganic materials.

Application

• Silicone Resin Precursor: A fundamental building block for manufacturing heat-resistant and weather-resistant silicone resins used in paints and protective coatings.
• Cross-Linking Agent: Functions as a reactive cross-linker in room-temperature vulcanizing (RTV) silicone rubbers and sealants, enhancing mechanical properties.
• Surface Modification: Used to treat inorganic surfaces like glass, silica, or metals to improve adhesion, hydrophobicity, or compatibility with organic matrices.
• Intermediate for Functional Silanes: Serves as a starting material for synthesizing other alkoxysilanes with specific terminal functionalities.
• Adhesive & Sealant Formulations: Imparts improved bonding strength and durability in high-performance industrial adhesive systems.
• Nanomaterial Synthesis: Employed in sol-gel processes to create hybrid organic-inorganic nanomaterials and thin films.

Basic Information

Product Name	Trimethoxychlorosilane
CAS No.	4668-00-2
Molecular Formula	C3H9ClO3Si
Molecular Weight	156.64 g/mol
Synonyms	Chlorotrimethoxysilane; Trimethoxysilyl chloride; Silane, chlorotrimethoxy-; Trimethoxy(chloro)silane; NSC 93766; (Trimethoxysilyl)chloride; Chloro(trimethoxy)silane
EINECS	225-133-8

Quality Control

Our Trimethoxychlorosilane is produced under stringent quality management protocols. Every batch undergoes rigorous analytical testing, including gas chromatography (GC), to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment, guaranteeing it meets the precise requirements of industrial and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat and ignition sources. Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Density (20°C)	1.16 - 1.18 g/cm³
Refractive Index (n20D)	1.390 - 1.395

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.