Description

Ethoxytrichlorosilane 97 is a highly reactive organosilicon compound primarily used as a key intermediate in the synthesis of silicone polymers and as a versatile surface-modifying agent. Its value lies in its ability to introduce both ethoxy and chloro functional groups, enabling precise chemical grafting and cross-linking in advanced material science. This product is essential for manufacturers in the semiconductor, specialty coatings, and pharmaceutical intermediates sectors who require reliable, high-purity silane precursors for their processes.

Application

• Semiconductor Manufacturing: As a crucial precursor for chemical vapor deposition (CVD) to create silicon-based dielectric and passivation layers.
• Surface Modification: For the hydrophobic treatment of glass, silica, and other inorganic fillers to improve compatibility with polymer matrices.
• Silicone Synthesis: Serving as a fundamental building block (monomer) in the production of specialized silicone resins, fluids, and elastomers.
• Adhesive & Sealant Formulation: As a cross-linking agent and adhesion promoter in high-performance silicone-based systems.
• Pharmaceutical Intermediates: Used in the synthesis of organosilicon compounds with potential biological activity.
• Nanomaterial Functionalization: For attaching specific organic groups to nanoparticle surfaces to control dispersion and reactivity.

Basic Information

Product Name	Ethoxytrichlorosilane 97
CAS No.	1825-82-7
Molecular Formula	C2H5Cl3OSi
Molecular Weight	191.50 g/mol
Synonyms	Trichloroethoxy silane; Ethyl silicate trichloride; Ethoxysilicon trichloride; Ethyltrichlorosilicate; (Ethoxy)trichlorosilane; Silane, ethoxytrichloro-; A 150 (coupling agent); Dynasylan® 150; Contact for additional trade names.
EINECS	217-374-7

Quality Control

Our Ethoxytrichlorosilane 97 is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay by GC and impurity profiling. Certificates of Analysis (COA) detailing specific results for purity, identity, and key physical properties are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat and ignition sources. Due to its highly volatile and hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and degradation. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.24 - 1.26 g/mL
Refractive Index (n20D)	1.400 - 1.405
Chloride Content	55.0 - 56.5 %

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