Description

Tetrakis(2-Ethylhexoxy)Silane is a high-purity organosilicon compound, specifically a tetraalkoxysilane derivative. This chemical serves as a versatile intermediate and cross-linking agent, valued for its ability to modify surface properties and enhance material performance. It is essential for manufacturers in the coatings, adhesives, and specialty polymers industries seeking to improve hydrophobicity, adhesion, and thermal stability.

Application

• As a key cross-linking agent in silicone-based resins and high-performance coatings.
• As a surface modifying agent to impart water repellency (hydrophobicity) to glass, minerals, and textiles.
• As a precursor for sol-gel processes to produce advanced ceramic and hybrid organic-inorganic materials.
• As an adhesion promoter in sealants, adhesives, and composite materials.
• In the formulation of release coatings and mold-making materials.
• As a stabilizer or modifier for specialty polymers to enhance thermal and chemical resistance.

Basic Information

Product Name	Tetrakis(2-Ethylhexoxy)Silane
CAS No.	115-82-2
Molecular Formula	C32H68O4Si
Molecular Weight	545.0 g/mol
Synonyms	Tetra(2-ethylhexyl) Orthosilicate; Tetra(2-ethylhexoxy)silane; Silane, tetrakis(2-ethylhexyl)oxy-; 2-Ethylhexyl Orthosilicate; Tetra(2-ethylhexyl) Silicate; TEHOS; Orthosilicic Acid Tetra(2-ethylhexyl) Ester; Bis(2-ethylhexyl) Silicate Dimer (common misnomer)
EINECS	204-110-7

Quality Control

Our Tetrakis(2-Ethylhexoxy)Silane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure consistency and meets high-purity standards suitable for industrial and R&D applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is available for every shipment upon request.

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 material is moisture-sensitive; ensure containers are kept tightly sealed to prevent degradation from atmospheric humidity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (at 20°C)	0.89 - 0.91 g/mL
Refractive Index (n20D)	1.440 - 1.445
Water Content (Karl Fischer)	≤ 0.1%

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