Hydrophilic Fumed Silica CAS 112945-52-5 High Purity SiO2
Sinochem is a major Hydrophilic Fumed Silica supplier. Meanwhile, our firm staffs a group of experts devoted to your development of China Hydrophilic Fumed Silica.
Hydrophilic Fumed Silica is a high-purity, white, and amorphous nanostructured silicon dioxide. Produced through the continuous flame hydrolysis of silicon tetrachloride (SiCl4) in a hydrogen-oxygen flame, this material consists of primary particles that fuse into stable, three-dimensional branched aggregates. Due to its exceptionally high surface area and surface silanol groups, it serves as an indispensable additive across various chemical and industrial sectors.
- Superior Rheology Management: Acts as a powerful thickening and thixotropic agent in liquid systems, ensuring optimal viscosity during application and storage.
- Enhanced Stability: Effectively prevents the settling of pigments and fillers, maintaining a homogeneous mixture in paints, coatings, and inks.
- Reinforcement Properties: Significantly boosts the mechanical strength, including tensile and tear resistance, in silicone elastomers and rubber compounds.
- Anti-Caking & Free Flow: Improves the flowability of powder-based products by reducing inter-particle friction and moisture-induced clumping.
- High Transparency: Its nano-scale structure ensures that it does not compromise the optical clarity of resins or clear coatings.
Hydrophilic Fumed Silica Description
Product Name: Hydrophilic Fumed Silica
Synonyms: Silicon Dioxide/ Synthetic Amorphous Silica / Pyrogenic (Fumed silica) / Amorphous Silica
Grade: XYSIL150 / XYSIL200 / XYSIL300
EINECS No.: 2315454
Molecular Formula: SiO2
Molecular Weight: 60.08
CAS NO.:7631-86-9(General) ; 112945-52-5(Specific)
Density: 2.2 g/cm³
Melting point: > 1600℃
Boiling point: 2200℃ at 1.013 hPa
Appearance: white solid-powder
Water solubility: insoluble
Package: 10 kg multi-layer kraft paper bags, palletized and shrink-wrapped for maximum protection.
Transportation:
- Sea Freight:
20′ GP: 1600 kg, 10 pallets, 160 kg/pallet
40′ GP: 3200kg, 20 pallets, 160 kg/pallet
40′ QH: 3600 kg, 20 pallets, 180 kg/pallet
- Road Transport: Truck transport, minimum order quantity 3 tons
About Us: With over many years as a certified Hydrophilic Fumed Silica manufacturer, we combine innovation with stringent production standards to deliver high-performance product.
Hot Tags: AEROSIL 200 ; AEROSIL 300 ; AEROSIL 50 ; CAB-O-SIL M-5 ;CAB-O-SIL L-90 ; CAB-O-SIL TS-720 ; HDK N20; HDK V15
Hydrophilic Fumed Silica Technical
| Item | Units | Index | ||
| Grade | XYSIL 150 | XYSIL 200 | XYSIL 300 | |
| Specific surface area (BET) | m2/g | 150±25 | 200±25 | 300±25 |
| pH-value (in 4% dispersion) | 3.8-4.5 | 3.8-4.5 | 3.8-4.5 | |
| Loss on drying, ex works( 2h@105℃) | wt% | <1.5 | <1.5 | <1.5 |
| Loss on ignition(2h@1000℃,based on material dried for 2h@105℃) | wt% | <2.5 | <2.5 | <2.5 |
| Sieve residue (45μm) | % | <0.05 | <0.05 | <0.05 |
| SiO2 content (based on the substance heated at 1000℃ for 2 h) | wt% | >99.8 | >99.8 | >99.8 |
| Tamped density (ex plant) | g/L | 25～60 | 25～60 | 25～60 |
| Carbon content (based on material dried for 2h @ 105℃) | wt% | <0.2 | <0.2 | <0.2 |
As a certified Hydrophilic Fumed Silica factory, we adhere to strict quality protocols, with every batch undergoing rigorous testing to ensure consistent efficacy and safety.
Hydrophilic Fumed Silica Applications
- XYSIL 150 & 200 Applications: Primarily used in RTV and HTV silicone rubber reinforcement. It is also widely applied in paints, coatings, and inks as a rheology modifier. In unsaturated polyester resins (UPR), it provides critical sag resistance for gel coats.
- XYSIL 300 Applications: Specifically designed for applications requiring a higher surface area, such as high-end adhesives, sealants, and complex coating systems. It is also used as a glidant in the pharmaceutical and cosmetics industries.
- General Uses: Adhesives, sealants, PVC, insulation materials, battery separators, and specialized thermal insulation (vacuum insulation panels).
We offer competitive Hydrophilic Fumed Silica price, and exclusive discounts for large quantities, helping you effectively reduce procurement costs.
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