
Tetraethyl orthosilicate
Chemical Name: | Tetraethyl orthosilicate |
Product Category: | Crosslinkers & Silazanes | Silane Coupling Agent |
Structural Formula: | ![]() |
CAS NO.: | 78-10-4 |
Molecular formula: | C₈H₂₀O₄Si |
EINECS: | 201-083-8 |
Molecular Weight: | 208.33 g/mol |
Appearance: | Colorless to almost colorless clear liquid. |
Tetraethyl orthosilicate Description
Tetraethyl Orthosilicate (TEOS), also known as tetraethoxysilane, is a crucial organosilicon compound. With its highly reactive properties, TEOS is widely used in the synthesis of silica-based materials, optical fibers, and various other industrial applications. Its role as a precursor in the formation of silicon-based compounds is invaluable in many industries, from materials science to electronics.
Chemical name | Tetraethyl orthosilicate |
Boiling point | Approximately 165°C |
Melting Point | Around -82°C |
Density(25°C),g/cm3 | Approximately 0.93 g/cm³ |
Flash Point | 54°C |
Refractive Index (nD20) | About 1.38 |
Solubility | Miscible with alcohols; soluble in ethers; slightly soluble in benzene |
Uses | TEOS is primarily used in the production of silica and silica-based materials. It’s essential in the manufacturing of optical fibers, coatings, and as a crosslinking agent in various polymer systems. Additionally, it’s utilized as a precursor in the synthesis of silicon-based compounds. |
Safety Information: | TEOS is classified as a harmful substance. Exposure can lead to:
It’s crucial to handle TEOS with care, using appropriate personal protective equipment such as gloves, eye protection, and working in a well-ventilated area. In case of exposure, seek immediate medical attention. |
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Tetraethyl orthosilicate: Guide
Tetraethyl Orthosilicate (TEOS) (CAS 78-10-4) is an indispensable compound in the chemical, electronics, and materials industries. Its versatility, particularly in the production of silica-based materials and its role as a crosslinking agent in polymerization processes, makes it an essential building block for various industrial applications. However, its reactivity and hazardous properties require strict safety protocols to ensure safe handling.
Whether you are involved in manufacturing optical fibers, silicon-based coatings, or polymer systems, TEOS is a key component in advancing technology and material science. Ensure proper storage, handling, and disposal to maintain safety and efficiency in your processes.