Description

2-Chloroethyltriethoxysilane is a versatile organosilicon compound featuring a reactive chloroethyl group and hydrolyzable ethoxy groups. This dual functionality makes it a critical coupling agent and intermediate for modifying inorganic surfaces and polymer matrices. It is essential for manufacturers in the adhesives, sealants, coatings, and composite materials industries seeking to enhance material compatibility, adhesion, and performance.

Application

• Surface Modification Agent: Used to treat glass fibers, minerals, and fillers to improve their compatibility and bonding with organic polymer resins in composite materials.
• Adhesion Promoter: A key ingredient in primers and adhesion promoters for coatings, sealants, and adhesives on difficult-to-bond substrates like metals and glass.
• Crosslinking Agent/Intermediate: Serves as a reactive intermediate in the synthesis of more complex silane derivatives and specialty polymers, where it can act as a crosslinker.
• Moisture-Cure Systems: Utilized in moisture-curing RTV silicone sealants and coatings, where it contributes to crosslinking and network formation.
• Mineral & Filler Treatment: Enhances the dispersion and mechanical properties of mineral fillers (e.g., silica, clay) in rubber and plastic compounds.
• Fiberglass Sizing: Incorporated into sizing formulations for fiberglass to improve the fiber-resin interfacial strength in reinforced plastics.

Basic Information

Product Name	2-Chloroethyltriethoxysilane
CAS No.	18279-67-9
Molecular Formula	C8H19ClO3Si
Molecular Weight	226.77 g/mol
Synonyms	(2-Chloroethyl)triethoxysilane; Triethoxy(2-chloroethyl)silane; Chloroethyltriethoxysilane; Silane, (2-chloroethyl)triethoxy-; 2-Chloroethyltriethoxysilane; (Chloroethyl)triethoxysilane; A 162; Dynasylan® 3246
EINECS	242-158-3

Quality Control

Our 2-Chloroethyltriethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, IR, and titration methods, to ensure consistent purity and performance. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment to guarantee compliance with your technical requirements.

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/59-77°F). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed to prevent hydrolysis and degradation upon exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	1.00 - 1.05 g/cm³
Refractive Index (n20D)	1.410 - 1.420
Chlorine Content	15.0 - 16.0 %

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