Amorphous silica is a non-crystalline form of silicon dioxide characterized by its high surface area, fine particle size, and porous structure. Unlike crystalline silica, it poses lower health risks and is widely used as a safe, functional additive in various industries.
Amorphous silica includes types like:
- Precipitated Silica
- Fumed Silica (Pyrogenic)
- Silica Gel
- Colloidal Silica
KosNature’s Manufacturing & Quality Control
KosNature specializes in synthetic amorphous silica produced through wet chemical precipitation or flame hydrolysis, with precise control over:
- BET surface area
- Particle size (D50)
- Oil absorption
- pH and bulk density
Our ISO-certified facilities ensure batch consistency, REACH compliance, and full traceability.
Key Characteristics
| Property | Typical Range |
|---|---|
| Appearance | White, fine powder |
| Surface Area (BET) | 100–400 m²/g |
| Particle Size (D50) | 3–30 μm (adjustable) |
| Oil Absorption | 150–300 ml/100g |
| pH (5% suspension) | 5.5–7.5 |
| Bulk Density | 0.05–0.30 g/cm³ |
| Moisture | <5% |
| Solubility | Insoluble in water |
Application Areas
🛞 Rubber & Plastics
- Used as a reinforcing filler
- Improves mechanical strength and processing
🎨 Paints & Coatings
- Rheology control, anti-settling, matting agent
- Enhances abrasion and weather resistance
💊 Pharma & Feed Additives
- Carrier for APIs, excipient in tablets
- Anti-caking and free-flow agent for feed premixes
🧴 Personal Care
- Used in scrubs, powders, and mattifying cosmetics
KosNature Amorphous Silica Grades
| Grade | Surface Area | Use Case |
| AS-150 | 150 m²/g | Rubber/Plastic Compounding |
| AS-250 | 250 m²/g | Paints & Paper Coatings |
| AS-200F | 200 m²/g | Feed & Pharma Carrier |
Why Choose KosNature
- Over 20 years in silica R&D and production
- Customizable physical & chemical parameters
- Safe, non-crystalline silica with low inhalation hazard
- Export-compliant: REACH, RoHS, FDA (when applicable)
- Technical consulting & consistent supply chain
Looking for a reliable amorphous silica manufacturer? KosNature delivers value, customization, and technical reliability.
Request a free sample or quotation.