Description

Dodecyltrichlorosilane is a versatile organosilicon compound, specifically a long-chain alkyltrichlorosilane, that serves as a critical intermediate in surface modification and polymer synthesis. Its primary value lies in its ability to form durable, hydrophobic coatings on substrates like glass, silica, and metals, fundamentally altering surface properties. This makes it an essential material for manufacturers in the electronics, nanotechnology, and specialty chemical industries seeking to enhance material performance, adhesion, and moisture resistance.

Application

• Surface Modification Agent: Key for creating hydrophobic, self-assembled monolayers (SAMs) on silicon wafers, glass, and metal oxides for microelectronics and MEMS devices.
• Coupling Agent/Adhesion Promoter: Improves the bond between inorganic fillers (e.g., silica) and organic polymer matrices in advanced composites and sealants.
• Nanomaterial Functionalization: Used to modify the surface of nanoparticles (e.g., silica, titania) to control dispersion and reactivity in nano-composites and coatings.
• Water-Repellent Coatings: Formulates durable water-repellent treatments for textiles, construction materials, and optical lenses.
• Intermediate for Silicone Chemistry: Serves as a precursor for synthesizing more complex silanes, silicone oils, and functional polymers.
• Chromatography Stationary Phases: Employed in the derivatization of silica gel to create reversed-phase columns for HPLC.

Basic Information

Product Name	Dodecyltrichlorosilane
CAS No.	4484-72-4
Molecular Formula	C12H25Cl3Si
Molecular Weight	303.77 g/mol
Synonyms	n-Dodecyltrichlorosilane; Lauryltrichlorosilane; Trichlorododecylsilane; Dodecyl silicon trichloride; 1-Dodecyltrichlorosilane; Silane, trichlorododecyl-; Dodecylsilicon trichloride; Dodecyl trichlorosilane
EINECS	224-767-7

Quality Control

Our Dodecyltrichlorosilane is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We adhere to relevant industry standards, and each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, identity, and impurity profiles. For customers with specific regulatory or application requirements, we can provide material with tailored specifications and supporting documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat and incompatible materials. 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. Recommended storage temperature is 2-8°C for extended stability. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (at 25°C)	~1.02 g/mL
Refractive Index (n20D)	~1.452

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