Description

Ethoxysilane CAS NO 18165-31-6 is a versatile organosilicon compound characterized by its reactive ethoxy groups bonded to a silicon atom. This chemical is a crucial intermediate and coupling agent, valued for its ability to modify surfaces and promote adhesion between organic and inorganic materials. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced material synthesis in electronics and composites.

Application

• Surface Modification Agent: Used to treat glass, silica, and metal surfaces to improve hydrophobicity, adhesion, and compatibility with polymers.
• Crosslinking/Coupling Agent: A key component in silicone resins, sealants, and adhesives to enhance thermal stability, mechanical strength, and weather resistance.
• Precursor for Silicone Synthesis: Serves as a fundamental building block in the production of specialized silicone oils, fluids, and rubber.
• Filler Treatment: Modifies mineral fillers (e.g., calcium carbonate, talc) in plastic composites to improve dispersion and interfacial bonding.
• Nanomaterial Functionalization: Used to attach organic functionalities to silica nanoparticles and other inorganic nanomaterials for specialized applications.
• Protective Coatings: Formulated into corrosion-resistant and water-repellent coatings for metals, concrete, and textiles.
• Electronic Encapsulants: Employed in the formulation of potting compounds and encapsulants for electronic components.

Basic Information

Item	Detail
Product Name	Ethoxysilane
CAS No.	18165-31-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Triethoxy(ethyl)silane; Ethyltriethoxysilane; Triethoxyethylsilane; Ethylsilanetriol triethyl ether; Silane, triethoxyethyl-; ETES; NSC 9375
EINECS	Contact for details

Quality Control

Our Ethoxysilane is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including gas chromatography (GC) and infrared spectroscopy (IR), to ensure high purity and consistent performance. Certificates of Analysis (COA) documenting key specifications are available upon request to support your quality assurance protocols.

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, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (20°C)	0.90 - 0.95 g/mL
Refractive Index (n20/D)	1.390 - 1.400
Water Content (Karl Fischer)	≤ 0.5%

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