Description

1,3-Diethyltetramethyldisiloxane is a versatile organosilicon compound, specifically a disiloxane derivative, valued for its role as a key intermediate and functional fluid in advanced material synthesis. Its chemical structure provides unique properties, making it essential for modifying surface characteristics and synthesizing complex silicone polymers. This product is primarily needed by manufacturers in the silicone industry, specialty chemical producers, and research institutions focused on materials science and organic synthesis.

Application

• Silicone Intermediate: A crucial building block for the synthesis of more complex silicone oils, resins, and elastomers.
• Surface Modification Agent: Used to impart hydrophobic or specific release properties to surfaces in coatings and treatments.
• Lubricant & Heat Transfer Fluid Component: Serves as a base or additive in specialty lubricants and thermal fluids due to its stability.
• Pharmaceutical & Cosmetic Ingredient Synthesis: Acts as an intermediate in the production of siloxane-based ingredients for controlled release or emolliency.
• Adhesive & Sealant Formulation: Employed to modify the rheology and curing properties of silicone-based adhesives and sealants.
• Research & Development: Used in academic and industrial R&D for exploring new organosilicon chemistry and polymer networks.

Basic Information

Product Name	1,3-Diethyltetramethyldisiloxane
CAS No.	2295-17-2
Molecular Formula	C8H22OSi2
Molecular Weight	190.43 g/mol
Synonyms	1,3-Diethyl-1,1,3,3-tetramethyldisiloxane; Diethyltetramethyldisiloxane; Tetramethyldiethyldisiloxane; Disiloxane, 1,3-diethyl-1,1,3,3-tetramethyl-; Ethylpentamethyldisiloxane (common misnomer); EMS-221 (potential trade name); Bis(ethylmethylsilyl) ether
EINECS	218-958-7

Quality Control

Our 1,3-Diethyltetramethyldisiloxane is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your specifications.

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 quality. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20D)	1.3900 - 1.3950
Density (20°C)	0.78 - 0.82 g/mL

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