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Chemical Name: Ethyl Silicate
English Name: Ethyl Silicate / Tetraethyl Orthosilicate (TEOS)
CAS Number: 78-10-4
Product Category: Organosilicon Compounds / Inorganic-Organic Hybrid Precursors
Ethyl silicate (CAS 78-10-4) is an important organosilicon compound. Under hydrolysis and condensation reaction conditions, it can form a high-purity silica network structure, making it a key raw material for the preparation of silica sol, coating materials, precision casting binders, and functional materials.
This product features strong reaction controllability, high purity, and excellent film-forming properties. It is widely used in precision casting, inorganic coatings, electronic materials, refractory materials, and sol-gel processes, and is an important basic chemical for industrial and high-end materials industries.
| Parameter | Value |
|---|---|
| Product Name | Ethyl Silicate / Tetraethyl Orthosilicate |
| CAS Number | 78-10-4 |
| Molecular Formula | C8H20O4Si |
| Molecular Weight | 208.33 g/mol |
| Appearance | Colorless transparent liquid |
| Odor | Mild alcohol-like odor |
| Density (20°C) | ~0.93 g/cm³ |
| Boiling Point | ~168 °C |
| Flash Point | ~46 °C |
| Solubility in Water | Reacts with water |
| Solubility in Organic Solvents | Soluble in alcohols, ethers |
| Purity | ≥98% |
| Shelf Life | 12–24 Months |
1. Investment Casting
Used as a shell binder
Improves surface finish and dimensional accuracy of castings
2. Coatings and Inorganic Coatings
High-temperature resistant and corrosion-resistant coatings
Inorganic silicate coating systems
3. Electronics and Functional Materials
Semiconductor material precursors
Electronic packaging and functional thin films
4. Sol-Gel Process
Preparation of silica gels
Optical materials and catalyst supports
✔ Stable and controllable hydrolysis and condensation performance
✔ High purity, low impurity content
✔ Uniform film formation and good mechanical strength
✔ Broad compatibility with inorganic and organic systems
✔ Suitable for industrial-grade and high-end material applications
🔹 Stable and large-volume supply capacity
🔹 Strict quality management system
🔹 Multiple packaging options to suit different applications
🔹 Provision of complete technical and safety documentation
🔹 Familiarity with international transportation and export compliance requirements
| Item | Details |
|---|---|
| Packaging Options | 200 kg Drum / 1000 kg IBC |
| Storage Condition | Cool, dry, well-ventilated area |
| Transportation | Non-dangerous goods (check local regulations) |
| Shelf Life | 12–24 months |
Q1: What is Ethyl Silicate mainly used for?
A: It is mainly used in investment casting binders, coatings, and sol-gel applications.
Q2: Does Ethyl Silicate react with water?
A: Yes, it hydrolyzes in the presence of moisture to form silica.
Q3: Is this product suitable for coating applications?
A: Yes, it is widely used in inorganic and heat-resistant coatings.
Q4: Can you provide COA and MSDS?
A: Yes, all standard documentation is available.
Q5: Do you support bulk supply?
A: Yes, bulk and IBC packaging are available.
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