Intermediates

3-Chloropropylmethyldimethoxysilane

  • CAS No.18171-19-2
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity organosilicon intermediate designed for coupling agents, rubber reinforcement, and textile treatment applications.

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Product Technical Details

Product Overview

3-Chloropropylmethyldimethoxysilane is a high-performance organosilicon compound widely recognized for its versatility in industrial synthesis and material modification. As a bifunctional molecule, it features a reactive chloropropyl group and hydrolyzable methoxy groups, enabling it to act as a powerful bridge between organic polymers and inorganic substrates. This unique chemical structure makes it an essential building block for manufacturing advanced coupling agents and specialized silicone oils.

Our manufacturing process ensures exceptional batch-to-batch consistency, delivering a product that meets rigorous international standards for purity and performance. Whether used in polymer modification or surface treatment, this silane provides superior adhesion promotion and mechanical enhancement.

Technical Specifications

ParameterSpecification
AppearanceColorless transparent liquid
Purity (Content)97% minimum
Density1.018-1.020 g/cm³
Refractive Index1.4210-1.4235
CAS Number18171-19-2

Industrial Applications

In the rubber industry, this compound is utilized to enhance the mechanical properties of polyurethane elastomers. By introducing polar chloropropyl groups, manufacturers can significantly improve tensile strength and durability. It is also instrumental in synthesizing vulcanized rubber compounds that exhibit lower permeability and rolling resistance while maintaining high elasticity and elongation rates.

For the plastics sector, particularly within PVC manufacturing, this silane effectively inhibits the dialysis of plasticizers. This function ensures that PVC products remain hygienic and clean over extended periods, preventing surface exudation. Additionally, it serves as a critical absorbent in polyurethane foams, enhancing the weatherability and structural integrity of foamed plastics.

The textile industry leverages this chemical to create advanced fabric treatment agents. Applications include imparting softness and elasticity to fibers, preventing yellowing during storage or exposure, and improving overall dyeing performance. In the printing sector, it is employed in the formulation of negatively charged toners for electrostatic copying and image development processes.

Handling And Storage

To maintain optimal quality, store this product in its original unopened container at temperatures of 25℃ or below. The shelf life is one year from the date of production. Expired products should only be utilized after passing comprehensive quality testing. Standard packaging options include 200Kg drums or 1000Kg IBC containers to suit various logistical requirements. Please note that this substance is classified as Dangerous Goods Class 3, requiring appropriate handling protocols during transport and storage.