Description

(3-Chloropropyl)Tris(1-Methylethoxy)Silane is a versatile organosilicon compound, specifically a chloropropyl-functionalized trialkoxysilane, widely used as a key coupling agent and surface modifier. Its value lies in its dual functionality, where the chloropropyl group provides a reactive site for further chemical synthesis and the trialkoxysilane groups enable strong bonding to inorganic substrates like glass, metals, and minerals. This product is essential for manufacturers in the adhesives, sealants, coatings, and composite materials industries, where it enhances the interfacial adhesion between organic polymers and inorganic fillers or reinforcements.

Application

• Coupling Agent for Mineral-Filled Composites: Improves the dispersion and bonding of fillers (e.g., silica, clay) in polymer matrices like epoxy, polyurethane, and silicone, enhancing mechanical properties.
• Surface Pretreatment for Adhesives and Coatings: Used to prime glass, metal, or concrete surfaces to promote adhesion and corrosion resistance of subsequently applied paints, adhesives, or sealants.
• Intermediate for Silane Synthesis: Serves as a crucial building block for the synthesis of more complex, specialty silanes and silicone derivatives through nucleophilic substitution of the chloro group.
• Fiberglass and Mineral Wool Treatment: Applied as a sizing or finishing agent to improve the compatibility and bond strength between glass fibers and resin in reinforced plastics (GRP, FRP).
• Modifier for Silica and Precipitated Silicates: Used in the production of hydrophobic or organophilic silica, which is a key component in silicone rubber, personal care products, and defoamers.
• Crosslinking Agent: Can act as a crosslinker in certain polymer systems, contributing to the formation of network structures with improved thermal and chemical stability.

Basic Information

Product Name	(3-Chloropropyl)Tris(1-Methylethoxy)Silane
CAS No.	61214-14-0
Molecular Formula	C12H27ClO3Si
Molecular Weight	282.88 g/mol
Synonyms	(3-Chloropropyl)triisopropoxysilane; Triisopropoxy(3-chloropropyl)silane; 3-Chloropropyltriisopropoxysilane; Silane, (3-chloropropyl)triisopropoxy-; (γ-Chloropropyl)triisopropoxysilane; Triisopropoxy(γ-chloropropyl)silane; CPTIPS; 3-Chloropropyltriisopropyloxysilane
EINECS	Contact for details

Quality Control

Our production of (3-Chloropropyl)Tris(1-Methylethoxy)Silane adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes rigorous analytical testing, including assay by GC or titration, identity confirmation by FT-IR, and control of key impurities such as free chloride and residual solvents. Certificates of Analysis (COA) detailing all specifications and test results are provided with every shipment. Our quality system is designed to support customer requirements in regulated and demanding industrial 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent hydrolysis and degradation. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Chlorine Content	12.0 - 13.0 %
Refractive Index (n20/D)	1.410 - 1.420
Density (20°C)	0.98 - 1.02 g/mL

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