Description

Diethoxydichlorosilane is a versatile organosilicon compound, specifically a chlorosilane derivative, widely used as a key intermediate in organic synthesis and materials science. Its primary value lies in its bifunctional reactivity, where the ethoxy and chloro groups serve as distinct handles for introducing silicon-containing moieties into target molecules or surfaces. This chemical is essential for manufacturers and R&D laboratories in the silicone polymer, pharmaceutical, and advanced materials sectors who require a reliable precursor for silane coupling agents, surface modification, and the synthesis of specialized silicon-based compounds.

Application

• Silane Coupling Agent Precursor: A fundamental building block for synthesizing various silane coupling agents used to improve adhesion between organic polymers and inorganic materials like glass, minerals, and metals.
• Surface Modification: Employed to functionalize silica, glass, and other oxide surfaces, altering their hydrophobicity, reactivity, or compatibility with other materials.
• Silicone Intermediate: Serves as a monomer or intermediate in the production of specialized silicone resins, elastomers, and fluids with tailored properties.
• Pharmaceutical Synthesis: Used as a silylating agent or protecting group reagent in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Chemical Vapor Deposition (CVD): Acts as a silicon source precursor for depositing silicon dioxide (SiO₂) or silicon oxycarbide thin films in semiconductor and coating applications.
• Laboratory Reagent: Utilized in research and development for introducing diethoxysilyl groups into organic molecules, facilitating further chemical transformations.

Basic Information

Item	Details
Product Name	Diethoxydichlorosilane
CAS No.	4667-38-3
Molecular Formula	C4H10Cl2O2Si
Molecular Weight	189.11 g/mol
Synonyms	Dichlorodiethoxysilane; Diethoxy(dichloro)silane; Dichlorodiethoxysilane; Silane, dichlorodiethoxy-; Diethoxydichlorosilane; Ethoxysilane dichloride; (Diethoxy)dichlorosilane; EINECS 225-127-8
EINECS	225-127-8

Quality Control

Our Diethoxydichlorosilane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including assay and impurity profiling by GC and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment, ensuring full traceability and compliance with customer requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat and ignition sources. Due to its moisture-sensitive (hygroscopic) 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, though short-term storage at 15-25°C is acceptable for in-use containers. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density at 20°C	1.07 - 1.09 g/mL
Refractive Index (n20D)	1.405 - 1.410
Chloride Content	36.5 - 37.5 %

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