Description

Disiloxane, 1,1,3,3-Tetraethyl-1,3-Dimethyl- is a high-purity organosilicon compound, specifically a symmetrically substituted disiloxane, valued for its role as a versatile chemical intermediate and precursor in advanced material synthesis. Its molecular structure, featuring silicon-oxygen-silicon bonds flanked by ethyl and methyl groups, provides unique reactivity and properties essential for creating specialized silicone polymers and surface-modifying agents. This product is critical for manufacturers and R&D laboratories in the silicone, electronics, and specialty chemical industries seeking to develop materials with tailored thermal stability, hydrophobicity, or dielectric characteristics.

Application

• Silicone Polymer Synthesis: Serves as a key monomer or chain extender in the production of specialty polydimethylsiloxanes (PDMS) and copolymers, influencing flexibility and thermal properties.
• Surface Modification & Coupling Agents: Used to create hydrophobic or oleophobic coatings on glass, metals, and minerals, and as a silane coupling agent to improve adhesion between organic and inorganic materials.
• Electronics & Semiconductor Industry: Employed as a precursor for spin-on dielectric (SOD) materials, protective coatings, and in the chemical vapor deposition (CVD) of silicon-containing thin films.
• Pharmaceutical & Agrochemical Intermediates: Functions as a building block in the synthesis of active pharmaceutical ingredients (APIs) and agrochemicals that incorporate organosilicon motifs.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new organosilicon chemistry, catalysis, and material science applications.
• Lubricant & Release Agent Formulations: Incorporated into high-performance lubricants, mold release agents, and anti-foaming agents due to its low surface tension and stability.

Basic Information

Product Name	Disiloxane, 1,1,3,3-Tetraethyl-1,3-Dimethyl-
CAS No.	1000-00-6
Molecular Formula	C10H28OSi2
Molecular Weight	204.50 g/mol
Synonyms	1,1,3,3-Tetraethyl-1,3-dimethyldisiloxane; 1,3-Dimethyl-1,1,3,3-tetraethyldisiloxane; Tetraethyldimethyldisiloxane; Dimethyltetraethyldisiloxane; Disiloxane, dimethyldiethyl-; Bis(diethylmethylsilyl) oxide; Hexaethyldisiloxane (common misnomer, verify structure); Oxybis(diethylmethylsilane)
EINECS	Contact for details

Quality Control

Our Disiloxane, 1,1,3,3-Tetraethyl-1,3-Dimethyl- is manufactured under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high chemical purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are 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, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This compound is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere such as nitrogen or argon for long-term storage to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20D)	1.410 - 1.415
Density (20°C)	0.82 - 0.86 g/mL

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