Description

2,2,10,10-Tetramethyl-3,9-Dioxa-2,10-Disilaundecane is a specialized organosilicon compound, specifically a silane coupling agent with a unique disiloxane bridge structure. This chemical matters for its ability to act as a versatile crosslinker and adhesion promoter, enhancing the performance and durability of polymer and composite materials. It is primarily needed by manufacturers in the silicone rubber, sealant, adhesive, and specialty resin industries seeking to improve thermal stability and mechanical properties.

Application

• Crosslinking Agent for Silicones: Used to enhance the cure and crosslink density in high-performance silicone elastomers and RTV (Room Temperature Vulcanizing) sealants.
• Adhesion Promoter: Improves the bond strength between organic polymers and inorganic substrates like glass, metals, and minerals in composite materials.
• Surface Modification: Employed to treat fillers (e.g., silica, glass fibers) to improve their compatibility and dispersion within polymer matrices.
• Intermediate for Specialty Chemicals: Serves as a key building block in the synthesis of more complex organosilicon compounds and functionalized materials.
• Water Repellency Agent: Imparts hydrophobic properties to surfaces and materials in protective coatings.
• Electronics Encapsulation: Used in formulations for potting and encapsulating electronic components due to its stability and insulating properties.

Basic Information

Product Name	2,2,10,10-Tetramethyl-3,9-Dioxa-2,10-Disilaundecane
CAS No.	54494-06-3
Molecular Formula	C11H26O2Si2
Molecular Weight	246.49 g/mol
Synonyms	1,1,1,7,7,7-Hexamethyl-3,5-dioxa-4-silaheptane; Bis(3-trimethoxysilylpropyl) Ether; 3,3'-[Oxybis(methylene)]bis[1,1,1-trimethoxypropylsilane]; 3,3'-[Oxybis(methylene)]bis(trimethoxysilylpropane); 1,1,1,7,7,7-Hexamethyl-4-oxa-3,5-disilaheptane; 3,3'-(Oxybis(methylene))bis(trimethoxysilane) (propan-3,1-diyl); Oxybis(methylene)bis(trimethoxysilylpropane); Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 2,2,10,10-Tetramethyl-3,9-Dioxa-2,10-Disilaundecane is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance and regulatory 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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.410 - 1.420
Density (20°C)	0.95 - 1.00 g/cm³

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