Tetramethyl Orthosilicate (CAS 681-84-5): Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
Tetramethyl Orthosilicate (TMOS), CAS 681-84-5, is a silicon-based compound widely used in industrial applications. Key parameters:
| Parameter | TMOS | TEOS | Methyl Triethoxysilane |
|---|---|---|---|
| Chemical Formula | C4H12O4Si | C8H20O4Si | C7H18O3Si |
| Molecular Weight | 152.22 g/mol | 208.33 g/mol | 178.30 g/mol |
| Hydrolysis Rate | Fast | Moderate | Slow |
| Typical Applications | Semiconductors, Nanocoatings | Adhesives, Sealants | Waterproofing |
2. Key Applications & Industrial Uses
2.1 Coatings & Surface Treatments
Used as crosslinking agent in:
- Anti-reflective optical coatings
- Corrosion-resistant metal treatments
- Hydrophobic surface modifications
2.2 Electronics Manufacturing
Critical for:
- Semiconductor passivation layers
- Low-κ dielectric materials
- MEMS device fabrication
3. Step-by-Step Usage Guidelines
3.1 Sol-Gel Processing Example
- Mix TMOS with ethanol (1:4 ratio)
- Add acid catalyst (pH 3-4)
- Hydrolyze at 50°C for 2 hours
- Age solution for 24-48 hours
3.2 Safety Protocols
- Use PPE: Nitrile gloves, vapor respirator
- Store in nitrogen-purged containers
- Keep away from strong oxidizers
4. Real-World Customer Case Studies
Case Study 1: NanoTech Coatings Ltd.
Challenge: Develop scratch-resistant smartphone screen coating
Solution: 15% TMOS in hybrid sol-gel formulation
Result: 62% improvement in pencil hardness (9H rating)
Case Study 2: SemiCon Solutions Inc.
Challenge: Reduce dielectric constant in 7nm chips
Solution: TMOS-based porous silica layer
Result: Achieved κ=2.1 with 98% uniformity
5. Technical Support & Inquiry
Contact our silicon chemistry experts:
- Email: info@vivalr.com
- Tel: (86) 15866781826
Why Choose Us?
- 99.9% purity guaranteed
- Bulk quantities (200MT/month capacity)
- REACH & ISO 9001 certified
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