Description

1,3-Dichloro-1,1,3,3-Tetraethylpropanedisiloxane is a highly reactive organosilicon compound, specifically a chlorinated disiloxane, that serves as a critical building block in advanced silicone chemistry. Its value lies in its bifunctional structure, providing two reactive chlorosilane sites for controlled polymerization and cross-linking, enabling the synthesis of specialized silicone polymers and functional materials. This product is essential for R&D chemists and manufacturers in the silicone elastomer, resin, and specialty chemical industries seeking to develop materials with tailored thermal, mechanical, and surface properties.

Application

• Silicone Polymer Precursor: A key monomer for the synthesis of novel polysiloxanes and silicone copolymers with specific chain architectures.
• Cross-linking Agent: Used to introduce cross-links into silicone networks, enhancing the thermal stability and mechanical strength of resulting elastomers and resins.
• Surface Modification: Employed to create hydrophobic or release coatings on various substrates via chemical grafting.
• Intermediate for Functional Silanes: Serves as a starting material for producing other organofunctional silanes through substitution reactions.
• Adhesive & Sealant Formulations: Incorporated into high-performance silicone adhesive and sealant formulations to modify cure profiles and final properties.
• Research & Development: A valuable reagent in academic and industrial labs for exploring new silicone-based materials and hybrid organic-inorganic systems.

Basic Information

Product Name	1,3-Dichloro-1,1,3,3-Tetraethylpropanedisiloxane
CAS No.	18825-03-1
Molecular Formula	C11H26Cl2O2Si2
Molecular Weight	313.41 g/mol
Synonyms	1,3-Dichloro-1,1,3,3-tetraethyldisiloxane; 1,3-Dichlorotetraethyldisiloxane; Tetraethyl-1,3-dichlorodisiloxane; Bis(chlorodiethylsilyl) ether; Dichlorotetraethyldisiloxane; Propanedisiloxane, 1,3-dichloro-1,1,3,3-tetraethyl-; Disiloxane, 1,3-dichloro-1,1,3,3-tetraethyl-
EINECS	242-598-5

Quality Control

Our 1,3-Dichloro-1,1,3,3-Tetraethylpropanedisiloxane is manufactured under strict quality protocols. Every batch undergoes rigorous analytical testing to ensure high purity and consistent reactivity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality management system is designed to meet the stringent requirements of industrial and research applications, ensuring reliable performance in your synthesis processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and reacts with strong acids/organic solvents; ensure containers are sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and maintain purity. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Chloride Content (Titration)	22.0 - 23.5 %
Density (at 20°C)	1.05 - 1.10 g/mL
Refractive Index (n20D)	1.430 - 1.440

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