Description

Diacetoxydiethoxysilane is a versatile organosilicon compound that serves as a key reactive intermediate in advanced material synthesis. Its bifunctional structure, featuring both acetoxy and ethoxy groups, provides unique reactivity for surface modification and cross-linking applications. This chemical is essential for manufacturers in the silicone polymer, coatings, and adhesives industries seeking to enhance material properties like adhesion, hydrophobicity, and thermal stability.

Application

• Silicone Resin & Polymer Modification: Acts as a cross-linking agent and monomer for synthesizing specialty silicone resins with tailored mechanical and thermal properties.
• Surface Treatment & Coupling Agent: Used to modify inorganic surfaces (glass, minerals, metals) to improve adhesion and compatibility with organic polymers in composite materials.
• Water Repellent Coatings: A key precursor in formulations for creating durable hydrophobic and weather-resistant coatings for construction and textile applications.
• Adhesive & Sealant Formulations: Enhances the performance of silicone-based adhesives and sealants by promoting adhesion to diverse substrates and controlling cure kinetics.
• Electronic Encapsulants: Employed in the production of protective gels and encapsulants for electronic components, offering moisture resistance and electrical insulation.
• Filler Treatment: Treats silica and other mineral fillers to reduce agglomeration and improve dispersion within rubber and plastic matrices.

Basic Information

Product Name	Diacetoxydiethoxysilane
CAS No.	13170-18-8
Molecular Formula	C8H18O6Si
Molecular Weight	238.31 g/mol
Synonyms	Diethoxybis(acetoxy)silane; Diethoxydiacetoxysilane; Bis(acetoxy)diethoxysilane; Silane, diacetoxydiethoxysilane; Acetic acid, 2,2'-(diethoxysilylene) ester; Diacetoxy-diethoxy-silane; DAES
EINECS	236-124-5

Quality Control

Our Diacetoxydiethoxysilane is manufactured under stringent quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC and NMR to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, specific gravity, and other critical parameters is 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, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and decomposition. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Specific Gravity (20°C)	1.05 - 1.10
Refractive Index (n20D)	1.390 - 1.410

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