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HS Code |
518023 |
| Chemical Formula | SiO2·nH2O |
| Appearance | White, fine powder |
| Ph Value | 6.0 - 7.5 (5% aqueous suspension) |
| Specific Surface Area | 120 - 250 m²/g |
| Pore Volume | 1.0 - 2.0 ml/g |
| Particle Size | 5 - 30 µm |
| Bulk Density | 180 - 250 kg/m³ |
| Moisture Content | < 6% |
| Solubility In Water | Insoluble |
| Loss On Ignition | < 7% |
| Refractive Index | 1.46 |
| Purity | > 98% |
| Cas Number | 112926-00-8 |
| Melting Point | > 1600°C |
As an accredited Activated Silica factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
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Purity 99.5%: Activated Silica with purity 99.5% is used in tire manufacturing, where it enhances wet traction and lowers rolling resistance. Particle size 7 µm: Activated Silica with particle size 7 µm is used in dental abrasives, where it provides efficient stain removal with minimal enamel wear. Surface area 200 m²/g: Activated Silica with surface area 200 m²/g is used in catalysis supports, where it increases catalyst dispersion and reaction yield. pH stability 2–10: Activated Silica with pH stability 2–10 is used in water treatment, where it ensures consistent flocculation performance across variable conditions. Moisture content <1%: Activated Silica with moisture content less than 1% is used in silicone rubber compounding, where it improves reinforcement and mechanical strength. Porosity 65%: Activated Silica with porosity 65% is used in chromatography columns, where it enhances analyte separation and resolution. Loss on ignition <3%: Activated Silica with loss on ignition less than 3% is used in coatings, where it maintains pigment stability and gloss over extended periods. Refractive index 1.45: Activated Silica with refractive index 1.45 is used in optical fillers, where it ensures precise light transmission and minimal scattering. Surface modification hydrophobic: Activated Silica with hydrophobic surface modification is used in personal care formulations, where it improves powder dispersion and skin feel. Thermal stability up to 800°C: Activated Silica with thermal stability up to 800°C is used in high-temperature insulation, where it ensures long-term structural integrity and heat resistance. |
| Packing | Activated Silica is packaged in 25 kg multi-layered kraft paper bags with inner polyethylene lining for moisture protection and safe transport. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): Activated Silica is loaded with a net weight of 10–12 metric tons per 20-foot container, securely packed. |
| Shipping | Activated Silica is typically shipped in sealed, moisture-proof bags, drums, or fiberboard containers to prevent contamination and moisture absorption. Containers are clearly labeled with product and hazard information. During transit, it should be kept dry and protected from physical damage, adhering to relevant safety and transportation regulations. |
| Storage | Activated Silica should be stored in a tightly sealed container in a cool, dry, and well-ventilated area. Protect from moisture, direct sunlight, and incompatible substances such as strong acids or bases. Keep away from sources of ignition. Ensure storage areas are clearly labeled and comply with safety regulations. Use proper safety gear when handling to prevent inhalation and contact with skin or eyes. |
| Shelf Life | Activated silica typically has a shelf life of 12-24 months if stored in a cool, dry, and sealed container. |
Competitive Activated Silica prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to sales3@ascent-petrochem.com.
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Tel: +8615365186327
Email: sales3@ascent-petrochem.com
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Producing Activated Silica for years means weighing needs, monitoring every batch, and learning alongside the industries that rely on consistent performance. We watch the powder fill drum after drum, and every particle tells a story of improvement—a journey not built by trading hands, but by direct involvement in the reaction vessel, the drying station, and the packing line.
Activated Silica from our production facilities, particularly our AS-720 model, isn’t just a commodity; it’s the result of focused chemical engineering combined with day-to-day feedback from those using it at scale. Silica starts with a base of amorphous silicon dioxide, but the difference comes from our activation process, which pushes surface area and porosity to a range that lifts reactivity and dispersion. You’ll notice that difference in the slurry tank and the end product—whether you run a tire mixer, compounding line, or specialty coatings setup.
Each industry has voiced its requirements over time, but the requests around ability to carry silanol groups, or how the silica disperses in various matrixes, come across as practical: improved reinforcement in rubber, better matting in paints, and finer control in polishing agents. Our AS-720 model, a finely divided white powder, typically features a BET surface area around 190 m2/g and a mean particle diameter kept below 25 microns. By holding this level of consistency, compounders can dial in tensile strength or optical haze without chasing sample-to-sample drift.
Those numbers didn’t emerge overnight. We ran through iterations, working closely with tire engineers who demand higher rolling efficiency and lower heat buildup, and with adhesives experts seeking better thixotropy. Many times, shifting the precipitation conditions or activation temperatures has meant re-plumbing lines, testing dozens of trial batches, and sending samples out for real-world feedback before any scale-up.
Users have found that Activated Silica boosts mechanical and chemical bonding in countless ways. The primary application continues to be in tire production, where its use as a reinforcing filler increases wet grip and lowers rolling resistance—a direct line to both safety and fuel economy. Feedback from the field keeps pointing us back to consistency: every kilogram of AS-720 integrates into the compound at a predictable rate, helping production managers hit their performance targets without surprises.
Paint and coatings formulators reach for Activated Silica too. What they appreciate most is the predictable matting index, combined with viscosity control that prevents sedimentation—meaning fewer defects and less rework in the coating line. In toothpaste, the same surface chemistry delivers effective but gentle abrasion, and the active silanol groups allow for uniform paste texture. Electronics manufacturers, on the other hand, value the highly porous structure, as it improves cleaning in semiconductor wafer processes by trapping tiny contaminants.
Over the years, customers working in agricultural carriers, sealants, food packaging, and even specialty catalysts have found fresh reasons to demand tight particle size distributions and high purity. Each time a new application comes through our doors, the solution usually comes down to an honest discussion about surface chemistry, bulk density, or moisture content—details that mean something to people who know what those changes mean to their line speed, product yield, or warranty claims.
Many technical managers ask why not just use standard precipitated silica or calcium carbonate, especially for bulk applications. The difference comes down to how the activation process tunes the silica surface. Standard precipitated silica carries many beneficial properties, but unmodified, its surface chemistry limits interaction with polymers and resins. Our activation method unlocks more silanol sites, increasing hydrogen bonding and making it possible to form a tighter network within the host material.
In barium sulfate or talc systems, the relatively inert nature of the filler lowers reactivity. A tire tread or elastomer reinforced with those fillers can’t reach the same wet traction or mileage as the one incorporating high-surface area Activated Silica. We’ve seen the difference in lab runs: an AS-720-filled polymer often shows double the tensile strength of a baseline sample with a conventional filler, and the rolling resistance drop translates directly to real-world fuel savings. This matters for end customers—fleet operators and car drivers—who increasingly make purchasing choices based on efficiency and environmental targets.
Carbon black still sees heavy use in elastomer systems, but it possesses a different profile: strong reinforcement, intense color, but higher weight and reduced compatibility in light-colored goods. Activated Silica bridges that gap by offering strong mechanical properties in translucent or colored polymers, and environmental compliance in regulated markets. The feedback from key accounts, especially those supplying European automakers or export-oriented shoe manufacturers, keeps underscoring regulatory pressure around heavy metals and specific emission benchmarks—an area where high-purity, low-iron silica like ours continues to pass audits year after year.
Day in, day out, the challenge for a silica manufacturer never shifts far from process control. Moisture swings in the raw materials, minor temperature lapses in the reactors, cross-contamination risks—all these can mean load rejections if not managed tightly. We know that if a drum sent to a mixing plant flocculates, or if a powder cakes during shipping, it can cascade into plant shutdowns or extra grinding cycles.
Tackling this has meant focusing hard on our QA protocols. Every batch of AS-720 starts with certified water and sodium silicate, reacting under digitally logged temperatures. We run inline zeta potential and particle size checks, and operators sample from multiple points in the drying step to spot rogue agglomeration before the powder hits the drums. X-ray fluorescence keeps iron, alumina, and heavy metals levels in line, supporting even the most demanding safety or food-contact standards.
It isn’t only about instruments and equipment. Years of operator experience—the sense of when a reactor looks off-color, or when a filter run seems stiffer than last week—keep quality parameters tight. Direct lines with end customers mean we know when material shifts drift outside tolerance, so every complaint is logged, investigated, and tracked for process correction, with annual audits by customers and third-party labs.
Every market segment using Activated Silica brings its own set of challenges. Rubber compounders push us for higher abrasion resistance, demanding fine and consistent surface structure for maximum filler-polymer interaction. In paints, customers need fast-wetting powders with minimized dusting, lowering risk to plant personnel and reducing filter load downstream.
We have responded by tweaking synthesis conditions and investing in micro-pulverizers and vacuum packaging. Extending our product line to include surface-treated variants means formulators get a silica grade ready to blend with nonpolar elastomers or solventborne coatings. We also share technical bulletins and formulation support, walking through best practices for dispersing the powder and optimizing processing conditions—because time spent solving a dispersion issue up-front saves weeks of troubleshooting on the application end.
Packaging and shipping pose their own issues. Moisture pick-up ruins shelf life and blocks pneumatic feeding lines, so we developed multi-layer drum liners and improved sealing technology after direct plant visits highlighted real world failures. Listening closely to feedback, we adjusted the bulk density range so that a bag of AS-720 fits into automated dosing systems, cutting down spills and dust escapes that used to dog our early shipments.
As environmental accountability rises in every industry, the role of Activated Silica as a responsible additive grows. Demands for REACH compliance in Europe and similar frameworks elsewhere put purity and traceability under scrutiny, and exporting to strict markets calls for detailed documentation and rapid response to audits. In our operation, maintaining consistently low heavy metal content and demonstrating non-toxicity in oral and dermal applications has prepared us not only for the letter of regulations, but for customer-driven safety demands as well.
Employees and communities around production plants expect lower emissions and safe handling, which has meant not just meeting, but often exceeding, local dust and water effluent controls. We reclaim processing water, operate closed-loop ventilation, and invest in low-dust handling infrastructure both for our own safety and that of every warehouse the product passes through. Technical staff regularly participate in regulatory trainings and standard-setting groups, feeding real-world data into policy updates that benefit all downstream users.
As customers in Europe, North America, and Asia launch more eco-label initiatives and low-emission products, the chain of responsibility runs back through every bag of silica shipped. By holding supply documentation, SDS records, and third-party audit results to the same standard as our internal batch data, we make it easier for buyers to certify products and manage recalls or regulatory filings without needless delays.
Working so closely on the ground with consumers of Activated Silica has shown us that technical advantage always pairs with trust. Engineers, production staff, and purchasing managers ask direct questions about consistency, long-term supply, and transparency. No amount of technical specification substitutes for first-hand factory visits, open lab trials, and a willingness to adjust grades based on real-world production needs.
We run an internal database tying every batch to its origin and customer feedback. If a batch underperforms, follow-up isn’t passed off to distribution—our technical team interacts directly and, when required, visits customer plants to view issues firsthand. This tight feedback loop means that process changes can be implemented within days, not months, and future customers benefit from lessons learned the hard way.
Strong working relationships with logistics teams keep deliveries on track and minimize disruption, especially during peak seasons or global supply chain shocks. Long-term purchasing agreements, custom packaging, and performance guarantees stem from years of mutual respect and shared problem solving—not from a catalog page or faceless inquiry line.
Markets continue to shift—electric mobility reshapes tire design, smarter building materials demand new types of fillers, and health and personal care move toward ingredient transparency and safety. Activated Silica will need to keep evolving, not only to meet stricter technical standards, but to align with shifting demands for sustainability and digital traceability.
We are investing in pilot-scale lines for new surface-treated grades, aligning particle morphology for faster dispersion, and experimenting with bio-based or closed-loop precursors for greener production. Collaborations with universities and industry consortia keep us close to the latest performance benchmarks, ensuring every kilogram of AS-720 supports not only today’s requirements, but the innovations customers are working toward tomorrow.
As a manufacturer, we hold ourselves responsible not only for supplying consistent Activated Silica but for converting every lesson from the field into better products and practices. Sharing technical data, responding to feedback, and investing in cleaner production helps users, their end customers, and our broader industry keep moving forward with confidence rooted in real-world performance and long-term commitment.