Description

Dichloromethyltriethoxysilane is a versatile organosilicon compound characterized by its reactive chloromethyl and ethoxysilyl groups. This dual functionality makes it a critical intermediate for introducing chloromethyl and silane functionalities into polymers and surfaces, enhancing properties like adhesion, hydrophobicity, and chemical resistance. It is essential for manufacturers in the silicone rubber, specialty coatings, and advanced composite materials industries seeking to modify material interfaces and performance.

Application

• Silicone Crosslinker & Intermediate: A key precursor in the synthesis of modified silicone oils, resins, and elastomers, where it acts as a crosslinking agent or introduces reactive sites for further functionalization.
• Surface Treatment & Coupling Agent: Used to treat inorganic fillers (e.g., silica, glass fibers) and substrates to improve their compatibility and adhesion with organic polymer matrices in composites and coatings.
• Adhesion Promoter: Incorporated into primer formulations for metals, glass, and plastics to significantly enhance coating adhesion and long-term durability under harsh environmental conditions.
• Hydrophobic Coating Formulations: Serves as a building block for creating water-repellent and anti-corrosion surface treatments for construction materials, electronics, and automotive parts.
• Pharmaceutical & AgroChemical Intermediates: Utilized in the synthesis of more complex organosilicon molecules with potential applications in active ingredient synthesis or delivery systems.
• Polymer Modification: Employed to graft silane functionalities onto polymer backbones, thereby imparting improved thermal stability, moisture resistance, or reactivity for subsequent curing processes.

Basic Information

Product Name	Dichloromethyltriethoxysilane
CAS No.	19369-03-0
Molecular Formula	C7H16Cl2O3Si
Molecular Weight	247.19 g/mol
Synonyms	Triethoxy(chloromethyl)silane; Chloromethyltriethoxysilane; (Chloromethyl)triethoxysilane; Dichloromethyl triethoxysilane; Triethoxy(chloromethyl)silane; Silane, (chloromethyl)triethoxy-; 1-Chloromethyl-1,1,1-triethoxysilane; A 162 (silane coupling agent)
EINECS	243-002-5

Quality Control

Our production of Dichloromethyltriethoxysilane adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, NMR, and titration to verify critical parameters such as assay, chloride content, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

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/59-77°F). This product is hygroscopic (moisture-sensitive) and reacts with strong acids and bases; it must be kept under a dry inert atmosphere (e.g., nitrogen or argon) and isolated from incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	1.07 - 1.10 g/cm³
Refractive Index (n20D)	1.405 - 1.415
Chloride Content	28.0 - 29.0 %

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