Description

Eicosyltrichlorosilane is a high-purity organosilicon compound, specifically a long-chain alkyltrichlorosilane. This chemical is a critical intermediate and surface-modifying agent, valued for its ability to impart hydrophobic and oleophobic properties to substrates. It is essential for manufacturers and R&D teams in the advanced materials, specialty chemicals, and nanotechnology sectors seeking to engineer surfaces with specific functional characteristics.

Application

• Surface Modification Agent: Used to create hydrophobic and self-assembled monolayers (SAMs) on glass, silicon, and metal oxide surfaces for water-repellent coatings.
• Silane Coupling Agent: Acts as an adhesion promoter in composite materials, enhancing the bond between organic polymers and inorganic fillers or reinforcements.
• Intermediate for Silicone Synthesis: Serves as a key building block in the production of specialized silicone oils, resins, and elastomers with long alkyl chain functionalities.
• Nanoparticle Functionalization: Employed to coat and stabilize nanoparticles (e.g., silica, metal oxides) to prevent aggregation and tailor surface chemistry for specific applications.
• Waterproofing Treatments: Formulated into treatments for textiles, leather, and construction materials to provide durable water and stain resistance.
• Release Coatings: Used in the formulation of non-stick and release coatings for industrial molds and papers.

Basic Information

Product Name	Eicosyltrichlorosilane
CAS No.	18733-57-8
Molecular Formula	C₂₀H₄₁Cl₃Si
Molecular Weight	408.0 g/mol
Synonyms	n-Eicosyltrichlorosilane; 1-Eicosyltrichlorosilane; Trichloro(eicosyl)silane; Docosyltrichlorosilane (common name for C22 chain, often used interchangeably); Arachidyltrichlorosilane; C20-Alkyltrichlorosilane; Long-chain alkyltrichlorosilane; Silane, trichloroeicosyl-
EINECS	Contact for details

Quality Control

Our Eicosyltrichlorosilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and NMR spectroscopy, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee it meets your precise technical requirements.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Chloride Content	Contact for details
Density (at 20°C)	~0.95 g/mL

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