Description

2-Chloroethylmethyldimethoxysilane is a versatile organosilicon compound featuring a reactive chloroethyl group and hydrolyzable methoxy functionalities. This dual reactivity makes it a valuable intermediate for introducing specific organic functionality and cross-linking potential into silane-based systems. It is primarily used by manufacturers in the silicone polymer, adhesive, and surface treatment industries. The compound is essential for creating specialized materials with tailored properties such as adhesion promotion, hydrophobicity, and chemical resistance.

Application

• Silicone Cross-Linking Agent: Used as a functional cross-linker in the synthesis of specialty silicone elastomers and resins, enhancing thermal and mechanical properties.
• Surface Modification & Coupling Agent: Acts as an adhesion promoter for coatings, sealants, and composites on substrates like glass, metals, and minerals, improving bond strength and durability.
• Intermediate for Functional Silanes: Serves as a key precursor in the synthesis of more complex organosilane derivatives for advanced material applications.
• Hydrophobic Treatment Agent: Imparts water-repellent characteristics to surfaces in construction materials, textiles, and fillers.
• Fiberglass Sizing: Incorporated into sizing formulations for fiberglass to improve the interfacial adhesion between the glass fibers and polymer matrices.
• Rubber & Tire Industry: Used as a coupling agent in silica-filled rubber compounds to improve reinforcement and reduce rolling resistance.

Basic Information

Product Name	2-Chloroethylmethyldimethoxysilane
CAS No.	13508-51-5
Molecular Formula	C5H13ClO2Si
Molecular Weight	168.70 g/mol
Synonyms	Methyl(2-chloroethyl)dimethoxysilane; (2-Chloroethyl)methyldimethoxysilane; Dimethoxy(2-chloroethyl)methylsilane; Methyldimethoxy(2-chloroethyl)silane; Silane, (2-chloroethyl)methyldimethoxy-; 2-Chloroethyl-methyl-dimethoxysilan; (Chloroethyl)methyldimethoxysilane
EINECS	236-822-1

Quality Control

Our production of 2-Chloroethylmethyldimethoxysilane adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications using advanced techniques like gas chromatography (GC) and NMR. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, identity, and impurity profiles to meet the exacting requirements of industrial and R&D applications.

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). This product is hygroscopic (moisture-sensitive) and should be kept under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Density (20°C)	1.05 - 1.10 g/cm³
Refractive Index (n20D)	1.420 - 1.430
Chlorine Content	20.5 - 21.5 %

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