10–12 nm Ultrafine, Ammonia-Stabilized High-Purity Colloidal Silica Lineup
SL Silica Sol is a milky-white translucent colloidal solution in which 10–12 nm ultrafine amorphous SiO₂ nanoparticles are uniformly dispersed in water, stabilized with an ammonia (NH₃) system as a New-Type product line. Its very large specific surface area (~200–260 m²/g) and excellent colloidal stability make it suitable for investment-casting shell binders, refractory and ceramic coatings, catalyst supports, paper and textile surface modification, semiconductor CMP slurry feedstock and ceramic-coated separators for lithium-ion batteries.
SiLiCA offers two standard grades — SN-JA25 (SiO₂ 25–26%) and SN-JA30 (SiO₂ 30–31%) — with customizable concentration, particle size and stabilizer system (NH₃/Na) to match customer slurry, binder and pH requirements.
Key Features
- 💧 10–12 nm Ultrafine Nano Silica — Uniform nano particle size — ideal for fine-pore penetration and thin-film coating
- 🧪 Ammonia-Stabilized (New Type) — NH₃ system — low Na⁺ / low ionic content for semiconductor and battery ceramic coating
- 🌡️ Excellent Heat & Sintering Performance — Minimal residue on firing — forms a pure SiO₂ binder network
- 🧱 Strong Binding Power — Maximizes investment-shell strength and refractory-coating adhesion
- 🌿 Eco-Friendly · Inorganic · Non-Toxic — VOC-free — inorganic replacement for organic binders
- 🎛️ Two Standard Grades · Custom Supply — SN-JA25 / SN-JA30 standard + custom concentration / particle size / stabilizer
Technical Specifications
| Item | Value |
|---|---|
| Product Lineup | SN-JA25 / SN-JA30 (New Type · NH₃-stabilized) |
| Appearance | Milky-white translucent colloidal liquid |
| SiO₂ Content | 25 ~ 31 % |
| Mean Particle Size | 10 ~ 12 nm |
| Specific Surface Area | ~200–260 m²/g |
| pH | 9.0 ~ 9.8 |
| Density | 1.19 ~ 1.21 g/cm³ |
| Stabilizer | NH₃ (New Type) · Na-system on request |
| Origin | China |
| Packaging | 25 kg drum · 200 kg drum · 1,000 kg IBC |
Product Lineup
- SN-JA25 · SN-JA25 · Silica Sol — SiO₂ 25–26% · 10–12 nm · NH₃-stabilized
- SN-JA30 · SN-JA30 · Silica Sol — SiO₂ 30–31% · 10–11.5 nm · NH₃-stabilized
- SN-SHS · Colloidal Silica Full Series — 14-grade lineup · JN/SW/JA/ZX/JGC series · 6–30 nm
Particle size, purity, surface treatment and packaging can be customized to your specification. Contact us for samples, TDS and quotations.