Description

Dimethyl Chloro Ethoxy Silane is a highly reactive organosilicon compound characterized by its chloro and ethoxy functional groups. This dual functionality makes it a versatile intermediate for introducing silicon-based modifications into polymer chains and surfaces. It is primarily used by manufacturers in the silicone, coatings, and adhesive industries seeking to enhance material properties such as adhesion, hydrophobicity, and crosslinking efficiency.

Application

• Silicone Polymer Modification: A key monomer or crosslinking agent in the synthesis of specialty silicone resins, rubbers, and sealants.
• Surface Treatment Agent: Used to impart hydrophobic and oleophobic properties to glass, minerals, and fillers for composite materials.
• Adhesive & Sealant Formulations: Acts as an adhesion promoter and moisture scavenger in high-performance polyurethane and silicone-based systems.
• Coupling Agent for Composites: Improves the interfacial bonding between inorganic fillers (e.g., silica, glass fiber) and organic polymer matrices.
• Pharmaceutical & Agrochemical Intermediates: Serves as a building block in the synthesis of more complex silane derivatives for specialized applications.
• Water Repellent Coatings: A precursor in formulations for creating durable water-repellent coatings on textiles, stone, and construction materials.

Basic Information

Item	Details
Product Name	Dimethyl Chloro Ethoxy Silane
CAS No.	1825-69-0
Molecular Formula	C4H11ClO2Si
Molecular Weight	154.67 g/mol
Synonyms	Chloro(dimethyl)ethoxy silane; Ethoxydimethylchlorosilane; Dimethylchloroethoxysilane; (Chlorodimethylsilyl)oxyethane; 1-Ethoxy-1-chloro-1-silapropane; DMCEOS; CAS 1825-69-0
EINECS	217-371-4

Quality Control

Our Dimethyl Chloro Ethoxy Silane is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee consistent quality and traceability for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its highly volatile and moisture-sensitive nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (20°C)	0.98 - 1.02 g/mL
Refractive Index (n20D)	1.405 - 1.415
Chloride Content	22.5 - 23.5 %

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