Tetraethoxysilane (TEOS) CAS 78-10-4: Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
Tetraethoxysilane (TEOS), CAS 78-10-4, is a high-purity silicon precursor widely used in advanced material synthesis. Key parameters:
| Parameter | Specification |
|---|---|
| Chemical Formula | Si(OC2H5)4 |
| Molecular Weight | 208.33 g/mol |
| Appearance | Colorless liquid |
| Purity | ≥99.9% |
| Packaging | 25kg, 200kg drums, or custom |
2. Key Applications of TEOS
- Semiconductor Manufacturing: CVD/ALD precursor for SiO2 thin films
- Coatings: Waterproofing agent for architectural surfaces
- Catalyst Support: Mesoporous silica synthesis
- Medical Devices: Bioactive glass production
- Optics: Anti-reflective coatings
3. Technical Parameters Comparison
| Property | TEOS | TMOS | MTES |
|---|---|---|---|
| Hydrolysis Rate | Moderate | Fast | Slow |
| Thermal Stability | Up to 400°C | 350°C | 380°C |
| Film Density | 2.2 g/cm³ | 2.0 g/cm³ | 1.8 g/cm³ |
4. Industry Use Cases
4.1 Semiconductor Fabrication
Applied in 28nm node CMOS devices through plasma-enhanced CVD processes, achieving ±1.5% thickness uniformity across 300mm wafers.
4.2 Anti-Reflective Coatings
Enabled 98.7% light transmission in solar panels through sol-gel deposition, improving energy conversion efficiency by 12%.
5. Customer Success Stories
Case 1: Leading Semiconductor Manufacturer
- Challenge: Void formation in 3D NAND structures
- Solution: TEOS-based flowable oxide
- Result: 22% reduction in defect density
Case 2: Automotive Coatings Supplier
- Challenge: Corrosion in aluminum components
- Solution: Hybrid TEOS-epoxy coating
- Result: Salt spray resistance improved to 2000+ hours
6. Request a Quote or Sample
Contact our technical team for:
- Custom purity specifications (99.9%-99.999%)
- Bulk pricing (20MT+ quantities)
- Technical documentation (MSDS, COA)
Email: info@vivalr.com
Tel: (86) 15866781826
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