Description

Tetraethylsilane is a versatile organosilicon compound widely used as a key building block in advanced material synthesis. Its value lies in its role as a precursor for silicon-containing polymers, coatings, and specialty chemicals, offering controlled reactivity and purity for demanding industrial processes. This product is essential for manufacturers and R&D teams in the semiconductor, pharmaceutical, and specialty polymer industries seeking reliable, high-purity intermediates.

Application

• Semiconductor Manufacturing: Used as a precursor for chemical vapor deposition (CVD) and atomic layer deposition (ALD) processes to create silicon-based thin films and dielectric layers.
• Silicone & Polymer Synthesis: Serves as a fundamental monomer or cross-linking agent in the production of specialized silicone resins, elastomers, and hybrid organic-inorganic polymers.
• Surface Modification & Coatings: Employed to impart hydrophobic or specific functional properties to glass, metals, and other substrates through silanization.
• Pharmaceutical Intermediates: Acts as a protected silicon reagent in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Catalysis & Ligand Synthesis: Utilized in the preparation of silicon-based ligands and catalysts for organic synthesis and industrial chemical processes.
• Adhesives & Sealants: Functions as an additive or curing agent to enhance the performance and stability of high-performance adhesive formulations.

Basic Information

Product Name	Tetraethylsilane
CAS No.	631-36-7
Molecular Formula	C8H20Si
Molecular Weight	144.33 g/mol
Synonyms	Silicon tetraethyl; Tetraethylsilicon; Tetraethyl monosilane; Ethylsilane; TES; Tetraethylsilicane; Tetraethyl silicate (common misnomer, verify context); Si(Et)4
EINECS	211-155-9

Quality Control

Our Tetraethylsilane is produced and tested under a rigorous quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. For specific regulatory or application requirements, please contact our technical team to discuss available grades and customized quality specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Due to its highly volatile nature, keep containers tightly sealed when not in use. Store separately from strong oxidizing agents and strong bases. Recommended storage temperature: 2-25°C.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Density (20°C)	0.758 - 0.768 g/mL
Refractive Index (n20D)	1.425 - 1.429
Water Content (KF)	≤ 0.1%

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