Description

n-Hexadecyltrichlorosilane is a high-purity organosilicon compound, specifically a long-chain alkyltrichlorosilane. This chemical serves as a critical surface modification agent, enabling the covalent attachment of hydrophobic alkyl chains to a variety of substrates. It is essential for manufacturers and R&D teams in the advanced materials, microelectronics, and nanotechnology sectors seeking to impart specific surface properties like water repellency, improved adhesion, or chemical resistance to glass, silicon, metals, and polymers.

Application

• Surface Modification & Hydrophobic Coatings: Primary use as a coupling agent to create durable, water-repellent (hydrophobic) monolayers on glass, silicon wafers, silica, and metal oxides.
• Nanomaterial Functionalization: Grafting onto nanoparticles (e.g., silica, titania) to improve dispersion in organic matrices and prevent agglomeration.
• Adhesion Promotion: Enhancing the bond between inorganic substrates and organic polymers, resins, or adhesives in composite materials.
• Microelectronics & Semiconductor Fabrication: Used in self-assembled monolayer (SAM) processes for surface patterning, dielectric layer modification, and as a primer in photolithography.
• Chromatography Media: Derivatization of stationary phases (e.g., silica gel) for reverse-phase HPLC columns to achieve specific separation selectivities.
• Waterproofing Agent: Treatment for textiles, paper, and construction materials to confer water and stain resistance.
• Research & Development: A key reagent in academic and industrial labs for studying surface science, thin-film technology, and novel material interfaces.

Basic Information

Product Name	n-Hexadecyltrichlorosilane
CAS No.	5894-60-0
Molecular Formula	C₁₆H₃₃Cl₃Si
Molecular Weight	359.87 g/mol
Synonyms	Hexadecyltrichlorosilane; Cetyltrichlorosilane; n-Cetyltrichlorosilane; Trichloro(hexadecyl)silane; Silane, trichlorohexadecyl-; Palmitoyltrichlorosilane (less common); 1-Hexadecanol, trichlorosilane derivative; ATMS-16 (as an alkyltrichlorosilane series member)
EINECS	227-566-3

Quality Control

Our n-Hexadecyltrichlorosilane is manufactured under stringent process controls to ensure batch-to-batch consistency and high chemical purity. Quality is verified through a comprehensive suite of analytical techniques including Gas Chromatography (GC), FT-IR spectroscopy, and Karl Fischer titration. A detailed Certificate of Analysis (COA) providing purity, identity, and impurity profiles is supplied with each shipment to support your quality assurance protocols.

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 hygroscopic and moisture-sensitive nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis. Keep away from strong acids, bases, and oxidizing agents. Use appropriate corrosion-resistant equipment for handling.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 25°C)	~0.98 g/mL
Refractive Index (n20/D)	~1.452
Water Content (Karl Fischer)	≤ 0.1%

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