Tetraethyl orthosilicate 99.0% (GC) 1Ltr

Tetraethyl orthosilicate 99.0% (GC) 1Ltr Specification

Usage
Laboratory

Purity
98%

Density
0.933 Gram per millilitre (g/mL)

Shelf Life
3 Years

Molecular Weight
208.33 g/mol Carat

Physical State
Liquid

CAS No
78-10-4

Size
1Ltr

Flash Point
~45 C

Ph Level
Not applicable

Boiling point
~168 C

Packaging Type
Glass Bottle

Molecular Formula
Si(OC H )

Melting Point
~-82 C

Grade
Reagent Grade / LR (Laboratory Reagent)

Type
Scientific Lab Chemicals

Application
Laboratory

Appearance
Colorless clear liquid

Purity(%)
~98% (GC)

Tetraethyl orthosilicate 99.0% (GC) 1Ltr Trade Information

Minimum Order Quantity
1 Bottle

Delivery Time
5 Days

About Tetraethyl orthosilicate 99.0% (GC) 1Ltr

Tetraethyl orthosilicate (TEOS) reagent grade, 98%, is a colorless liquid alkoxide primarily used as a precursor for silicon dioxide (SiO2) thin film deposition. It's also utilized in the creation of hydrogels, nanoparticle-based drug delivery systems, and as a chemical crosslinking agent for polymers. TEOS is known by several other names, including ethyl silicate (though this can be ambiguous), silicon tetraethoxide, and tetraethoxysilane. Key Characteristics and Uses:

Chemical Formula: Si(OC2H5)4
Molecular Weight: 208.33 g/mol
CAS Number: 78-10-4
Reagent Grade: 98% purity
Applications:
- Silicon Dioxide (SiO2) Thin Films: TEOS serves as a key precursor for depositing SiO2 films, widely used in the semiconductor industry and for other applications.
- Hydrogels: TEOS is used in the formation of hydrogels, which are networks of polymer chains that can absorb large amounts of water.
- Nanoparticle-based Drug Delivery: TEOS can be employed to create silica nanoparticles, which are used in drug delivery systems.
- Crosslinking Agent: TEOS can act as a crosslinking agent in silicone polymers, increasing their strength and durability.
- Other Uses: TEOS is also utilized in the synthesis of zeolites, coatings for various materials, and the production of aerogel.

Important Considerations:

Solubility: TEOS is practically insoluble in water but is miscible with alcohol.
Decomposition: It slowly decomposes in the presence of water.
Commercial Production: TEOS is commercially produced by reacting ethanol with metallic silicon.

Reliable High-Purity Reagent for Laboratories

Tetraethyl orthosilicate, with a guaranteed purity of approximately 98%, supports a range of laboratory and research protocols. Its colorless, clear appearance illustrates its high quality, and each 1-liter package comes sealed in a durable glass bottle to prevent contamination. Strengthened by a three-year shelf life, it is engineered for both routine and specialized applications.

Versatile Applications in Scientific Research

TEOS is commonly employed for sol-gel syntheses, advanced material creation, and as a precursor in silica glass production. Its consistent molecular weight and reliable performance make it a favored choice in analytical and industrial laboratories alike. Proper storage and handling ensure long-term utility and safety during use.

FAQ's of Tetraethyl orthosilicate 99.0% (GC) 1Ltr:

Q: How is Tetraethyl orthosilicate 99.0% (GC) typically used in laboratories?

A: Tetraethyl orthosilicate (TEOS) is mainly used as a precursor for silica in sol-gel processes, glass production, and as a cross-linking agent in polymer synthesis. Its high purity enables accurate chemical reactions and reliable experimental results.

Q: What are the recommended storage conditions for TEOS to maintain its 3-year shelf life?

A: TEOS should be stored in a tightly sealed glass bottle, away from heat, moisture, and direct sunlight. Keeping it in a cool, dry environment will help preserve its purity and prevent premature decomposition.

Q: Where is Tetraethyl orthosilicate applicable beyond basic laboratory use?

A: Apart from laboratory research, TEOS finds applications in the semiconductor and fiber optics industries, as well as in coatings, adhesives, and catalysts production where high-purity silica is essential.

Q: What safety precautions should be followed when handling this chemical?

A: Due to its flash point of around 45C and volatility, TEOS should be handled in a fume hood while wearing appropriate protective gear, including gloves and goggles, to avoid inhalation, skin contact, or accidental ignition.

Q: How does the purity percentage (~98%) affect the performance in experiments?

A: The high purity ensures minimal interference from impurities, providing more reliable and reproducible results. This makes TEOS suitable for applications where consistency and precision are paramount.

Q: What are the physical properties that make TEOS suitable for scientific purposes?

A: TEOS is a colorless, clear liquid with a low melting point (~-82C) and moderate boiling point (~168C), offering ease of mixing and controlled evaporation in synthesis reactions. Its density and reagent grade quality support precise measurement and formulation.

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