Tetraethyl Orthosilicate Reagent Grade 98% 500ml Sigma-Aldrich

Tetraethyl Orthosilicate Reagent Grade 98% 500ml Sigma-Aldrich Specification

CAS No
78-10-4

Packaging Type
Glass Bottle

Density
0.933 Gram per millilitre (g/mL)

Size
500ml

Boiling point
168 C

Ph Level
N/A

Molecular Weight
208.33 g/mol Grams (g)

Flash Point
45 C

Molecular Formula
C H O Si

Shelf Life
3 Years

Usage
Laboratory

Physical State
Liquid

Purity
98%

Melting Point
77 C

Grade
Reagent Grade

Type
Industrial Lab Chemicals

Application
Laboratory

Appearance
Colourless liquid

Purity(%)
98%

Autoignition Temp
230 °C

Transport Temp
Ambient

Hazard Class
3

Packing Type
Glass bottle

UN Number
1292

Viscosity
1.5 mPa.s

Flash Point
43 °C

Evaporation Rate
Slow

Stability
Stable under standard conditions

Boiling Point
168 °C

Tetraethyl Orthosilicate Reagent Grade 98% 500ml Sigma-Aldrich Trade Information

Minimum Order Quantity
20 Bottles

FOB Port
Jaipur

Payment Terms
Telegraphic Transfer (T/T), Cash Advance (CA), Cash in Advance (CID)

Supply Ability
100 Bottles Per Day

Delivery Time
5 Days

Sample Policy
Contact us for information regarding our sample policy

Main Export Market(s)
North America, Africa, Asia, Eastern Europe, Western Europe, Middle East, Australia, Central America, South America

Main Domestic Market
All India

About Tetraethyl Orthosilicate Reagent Grade 98% 500ml Sigma-Aldrich

Packaging Type	500ML Bottle
CAS Number	78-10-4
Purity	98%
Molecular Weight	208.33
Product ID	131903
Chemical Formula	Si(OC2H5)4
Synonyms	Orthosilicic acid tetraethyl ester, Silicon tetraethoxide, TEOS, Tetraethoxysilane, Tetraethoxysilic
Brand	SIGMA ALDRICH
Packaging Size	500 ml
Grade Standard	Reagent Grade
Grade	LR (Laboratory)
Usage/Application	Laboratory
Product Name	Tetraethyl orthosilicate reagent grade

Minimum order quantity: 500 Kg

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.

Versatile Applications in Research and Industry

Tetraethyl Orthosilicate Reagent Grade 98% is commonly utilized by laboratories, exporters, manufacturers, and suppliers across India. Its high purity ensures optimal performance in silica coating, sol-gel processes, and as a cross-linking agent in polymer synthesis. The product's reliable stability and slow evaporation rate make it a preferred choice for scientific innovation and production workflows.

Safe Handling and Storage Requirements

Due to its flammable nature (Hazard Class 3, flash point 43C), Tetraethyl Orthosilicate should be handled with appropriate safety precautions. Always use glass bottles for storage and maintain room temperature conditions to preserve product integrity. Its water solubility allows straightforward cleanup and usage procedures, facilitating convenient laboratory and industrial practices.

FAQ's of Tetraethyl Orthosilicate Reagent Grade 98:

Q: How should Tetraethyl Orthosilicate Reagent Grade 98% be properly stored?

A: It should be stored in tightly sealed glass bottles at room temperature, away from sources of ignition and moisture, due to its flammable properties and sensitivity to hydrolysis.

Q: What are the recommended safety practices when working with this chemical?

A: Wear appropriate personal protective equipment such as gloves and goggles, ensure good ventilation, and avoid open flames or sparks near the product, as it has a flash point of 43C and is classified as a flammable liquid (Hazard Class 3).

Q: When is Tetraethyl Orthosilicate commonly used in laboratory processes?

A: It is frequently used in silica synthesis, sol-gel processes, and as a precursor for silicon-based materials thanks to its high purity and reagent grade quality.

Q: Where can this compound be sourced in India?

A: Tetraethyl Orthosilicate Reagent Grade 98% can be sourced from distributors, exporters, manufacturers, suppliers, and traders across India, often supplied in glass bottles for optimal safety.

Q: What is the benefit of using the reagent grade 98% purity for industrial or research purposes?

A: This high purity ensures minimal impurities, leading to consistent and reproducible results in scientific and industrial applications, making it reliable for precision processes.

Q: How is Tetraethyl Orthosilicate typically used in practice?

A: It is usually dissolved in solvents or directly hydrolyzed with water under controlled conditions to form silica or related materials, benefiting applications that require precise silica networks.

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