Table of Contents
- Silica Dimethyl Silylate (CAS 68611-44-9) Overview
- Technical Parameters & Comparative Analysis
- Industrial & Commercial Applications
- Functional Implementation Strategies
- Verified Client Success Stories
- Collaboration Opportunities
Silica Dimethyl Silylate (CAS 68611-44-9) Overview
Chemical Profile
Silica dimethyl silylate is a hydrophobic fumed silica derivative with surface modification via dimethylsilyl groups. This engineered material features:
| Property | Specification |
|---|---|
| CAS Number | 68611-44-9 |
| Molecular Formula | C₂H₆OSi·SiO₂ |
| Appearance | White amorphous powder |
| Bulk Density | 40-60 g/L |
| Surface Area | 90-130 m²/g (BET) |
| Hydrophobicity | Contact angle >140° |
Technical Parameters & Comparative Analysis
| Parameter | Standard Grade | Pharma Grade | Industrial Grade |
|---|---|---|---|
| Particle Size | 7-16 nm | 5-12 nm | 10-20 nm |
| Loss on Drying | ≤1.5% | ≤0.8% | ≤2.0% |
| pH Value | 5.0-7.0 | 4.5-6.5 | 5.5-7.5 |
| SiO₂ Content | ≥99.3% | ≥99.8% | ≥98.5% |
Industrial & Commercial Applications
Core Functional Benefits
- Cosmetics: Oil absorption control in foundations (2-8% load)
- Polymers: Rheology modification in silicone rubbers
- Coatings: Anti-settling agent with 30% viscosity enhancement
- Pharmaceuticals: Tablet flow enhancer (0.5-2% concentration)
Functional Implementation Strategies
Optimized Dispersion Protocol
- Pre-mix with non-polar carriers at 1:3 ratio
- Shear mix at 2,000-4,000 RPM for 15-30 mins
- Maintain temperature below 50°C during dispersion
Verified Client Success Stories
Case 1: Cosmetic Manufacturer (France)
| Challenge | Oil separation in premium foundation line |
|---|---|
| Solution | 3.5% silica dimethyl silylate incorporation |
| Result | 78% reduction in oil bleed, 22% shelf life extension |
Case 2: Automotive Sealant Producer (Germany)
| Challenge | Adhesive viscosity instability |
|---|---|
| Solution | 1.8% silica loading with staged addition |
| Result | Consistent rheology across -40°C to 150°C range |
Collaboration Opportunities
For technical specifications sheets or formulation consultation:
Email: info@vivalr.com
Tel: (86) 15866781826
Request product samples or discuss bulk procurement:
| Package | Unit Size | MOQ |
|---|---|---|
| Standard | 20 kg drum | 100 kg |
| Custom | 500 kg pallet | 1 MT |
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