|
HS Code |
337922 |
| Chemical Formula | SiO2 |
| Molar Mass | 60.08 g/mol |
| Appearance | White powder or colorless crystals |
| Density | 2.65 g/cm³ (quartz) |
| Melting Point | 1710 °C |
| Boiling Point | 2230 °C |
| Solubility In Water | Insoluble |
| Hardness Mohs | 7 (quartz) |
| Refractive Index | 1.458 (quartz) |
| Crystal Structure | Hexagonal (quartz) |
| Cas Number | 7631-86-9 |
| Thermal Conductivity | 1.4 W/m·K (at 25 °C) |
As an accredited Silicon Dioxide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging is a 500g white plastic bottle with a blue screw cap, labeled "Silicon Dioxide, SiO₂, Laboratory Grade." |
| Shipping | Silicon Dioxide is shipped in tightly sealed containers such as drums, bags, or bulk containers to prevent contamination and moisture absorption. Proper labeling and documentation are required. It is transported under normal environmental conditions, as it is non-hazardous, stable, and not classified as dangerous goods for shipping by land, sea, or air. |
| Storage | Silicon dioxide should be stored in a tightly closed container in a cool, dry, and well-ventilated area. Keep it away from incompatible substances, such as hydrofluoric acid. Protect from moisture and avoid generating dust. Ensure storage areas are labeled and comply with safety regulations. Maintain containers upright to prevent spills and only use containers made of compatible materials. |
| Purity 99.9%: Silicon Dioxide with 99.9% purity is used in semiconductor manufacturing, where it ensures high dielectric strength and device reliability. Particle Size 5 μm: Silicon Dioxide with 5 μm particle size is used in coating formulations, where it enhances scratch resistance and surface durability. Surface Area 200 m²/g: Silicon Dioxide with 200 m²/g surface area is used in catalyst supports, where it maximizes active site dispersion and catalytic efficiency. Melting Point 1710°C: Silicon Dioxide with a melting point of 1710°C is used in glass production, where it imparts thermal stability and transparency. Amorphous Form: Silicon Dioxide in amorphous form is used in food additives, where it functions as an anti-caking agent to maintain product flowability. Colloidal Grade: Silicon Dioxide of colloidal grade is used in pharmaceutical suspensions, where it provides uniform particle dispersion and enhances formulation stability. Hydrophilic Surface: Silicon Dioxide with a hydrophilic surface is used in toothpaste formulations, where it improves cleaning efficiency and aids in stain removal. Refractive Index 1.46: Silicon Dioxide with a refractive index of 1.46 is used in optical fiber manufacturing, where it enables efficient light transmission and minimal signal loss. Particle Size < 50 nm: Silicon Dioxide nanoparticles size < 50 nm are used in polymer composites, where they enhance mechanical strength and barrier properties. High Purity 99.99%: Silicon Dioxide with 99.99% purity is used in solar cell fabrication, where it ensures low impurity-related defects and optimal energy conversion efficiency. |
Competitive Silicon Dioxide prices that fit your budget—flexible terms and customized quotes for every order.
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In chemical industries, we look at silicon dioxide from the ground up. We walk the factory floor every day, monitoring batches at each stage, and we’ve seen this material shape the backbone of everything from glass to toothpaste. This isn’t something abstract. For us, quality starts the moment raw silica gets trucked in. The batch’s moisture matters, aggregate size makes or breaks a production run, and our workers sort grades before a first shift sips their coffee. There are cheaper shortcuts out there, but real performance in glass molding, paints, and electronics comes down to tightly controlled silicon dioxide—no compromises, no short-term fixes.
We craft a lean lineup: food-grade amorphous silicon dioxide under the SD15 model, high-purity SD-HP for electronics, and SD-MP for general industrial use. Purity fluctuates between models, topping 99.9% for SD-HP, a fine fit for semiconductors where trace metals can topple an entire lot. In SD15, particle size sits between 2 to 8 microns, and in SD-MP, between 8 to 25 microns. These numbers aren’t details for spec sheets—they translate into how the powder pours, disperses, and finally, interacts with customer processing lines.
Take toothpaste manufacturers. They ask for SD15 because it scrubs without grinding enamel, due to those microns-wide spherical grains. On the flip side, SD-MP goes in paints and rubber, where coarser particles add grit or bulk at a cost savings. End-users will know if they’re running into poor dispersibility or wrong viscosity. We find that handling batch by batch, sample by sample, helps us reduce off-spec shipments to near zero, which means their mixing tanks don’t gum up and their batches finish on time.
We ship silicon dioxide to food plants, personal care facilities, glassworks, paint shops, battery makers, and more. Each market treats the powder differently. Food grade arises out of hydrolysis and scrupulous filtration because customers add it right into supplements, spices, or anti-caking formulas. Those buyers use SD15 for its extremely low metal content and inertness, since food standards are uncompromising.
Paint makers expect a different attitude from the powder. Surface area, oil absorption, and moisture content matter more than mere purity. SD-MP steps in for them—paint and ink need a grade that stabilizes pigment, refines texture, and resists wetting failures on walls. Their batch comes vacuum-packed in lined bags, humidity kept under strict control up to the truck doors. In our labs, all the mixing, drying, and sieving gets repeatedly checked, and our chemists live with the results every day.
For the electronics sector, SD-HP avoids iron and aluminum contamination entirely. Glass fabricators want silica that melts clean and clears easily, without introducing haze or color, so we track trace elements religiously. Every shift, teams run XRF analysis and log impurity levels, not just for bragging rights, but to protect long-term supplier trust. Our best batches supply optical fibers, specialty glass lenses, and even sol-gel coatings where average material falls short.
From where we stand, differences come down to purity, particle size, and moisture. Bulk SD15 passes food inspections because we keep heavy metals well below regulatory thresholds, screen out crystalline residues, and maintain rigorous post-production audits. SD-HP’s value lives in oxygen furnace output—customers demand a sub-ppm metallic fingerprint to avoid electrical shorts or failure in chips.
The industrial SD-MP suits volume buyers who tolerate slightly higher impurities but need reliable flowability, and spray-drying keeps particle clumping in check. Over years, we’ve reduced moisture deviation with more accurate oven calibration and tighter packaging protocols. Our QC operators, some with us for decades, can spot a batch gone sideways before a sensor ever blinks. This level of attention sets one producer’s powder apart from others, especially for industrial partners running automated lines.
No manufacturer ignores the drawbacks: bulk silicon dioxide powders, exposed to damp air, draw moisture which can affect flow in automated feeders. Paint producers complain about poor dispersion when moisture spikes above 0.3%. We address this risk by storing finished lots in humidity-sealed rooms, and transportation partners stick to dedicated vehicles with sealed containers to keep every bag dry. Medical applications—like tablet presses—are even tighter. We provide full disclosure of every trace impurity because mistakes mean lost contracts, and the wrong grade means clogs or crumbling pills.
In occupational safety, workers handle silica every day, which is why we switched from crystalline to amorphous grades years ago. Respirable crystalline dust creates severe health risks, and we’d rather absorb higher refining costs than expose our team to these hazards. Throughout our production floors, air handling runs around the clock, and PPE compliance gets checked shift by shift. This investment pays us back with safer workplaces—no substitute passes muster.
Running a silicon dioxide factory has always carried environmental responsibility. We generate filter cake and water wastes in hydrolysis, but management teams pursue recycling and closed-loop water usage where possible. Our facilities keep abatement systems running because local agriculture and downstream water users live with the results of plant emissions. Neighbors remember past problems, so we invite community representatives for regular walkthroughs. Dust control and material runoff matter as much to us as compliance—no one forgets an incident or chalks it up to “business as usual.”
We’ve invested in dust collection at every dumping and bagging station, and every unit, from scrubber to filter, gets logged for maintenance weekly. Nor do we ignore end-of-life issues—spent filters and packaging go to authorized disposal, not landfill. With growing scrutiny, a plant’s reputation offsets cost-cutting every time. In annual reviews, external auditors walk the grounds, sample the soil, and we release our emission data publicly. Only openness earns us contracts in industries focused on traceability and green credentials.
Every buyer brings their own concerns—too powdery, too coarse, metal traces, slow shipping, labeling mistakes. Food customers like knowing every lot can be traced back hours, not days, and we provide signed logs for each SKU shipped. Some partners arrive at our doors for technical support: a customer switching tablet binders or reformulating their interior paint wants hands-on trials, sample lots, or custom sieving. That means sending plant techs to customer facilities, spending time on site, and actually seeing their mixing lines before recommending a final product. Over time, we learn why one bakery can’t use the same batch as a paint factory, even with the same name on the sack.
Paperwork delays are real. Customs, new export markets, changing regulations—every regional shipment brings its own red tape, and we staff experts to handle these headaches before bulk shipments leave the yard. Certifications matter, so even though we already run to EU and US food codes, we update every label, keep allergen logs, and offer batch certifications on request. Full transparency—lab reports, processes, and compliance records—backs up every drum we ship.
Years back, silicon dioxide production focused on bulk supply: ton-size bags hauled across continents to glass and paint giants. Now, small lots for biotech or medical device companies form a steady part of the business. Purity specifications sharpen every season as regulated users demand ever-lower heavy metal content. This shift forces us to expand analytics beyond legacy wet chemistry—techs calibrate XRF and ICP-MS more than ever.
International partners in Asia, the Americas, and Europe each approach sourcing differently. A factory in Germany can’t accept trace lead, even where local food codes would. A battery plant in South Korea calls twice monthly about sodium content—trace alkalis corrode electrode performance. We keep an open line to these partners, and meeting their specs means investing in capillary electrophoresis, atomic absorption, and updated particle counters. This isn’t a marketing angle; it’s the nature of survival for anyone serious about their product.
Our R&D floors never stand idle. A decade ago, we faced increasing pressure from specialty glassmakers to lower iron and titanium counts in bulk silica. Gradually, our teams streamlined flotation and magnetic separation, dropped trace elements further, and cut wash cycle waste. These changes produced high-purity silica at scale, enabling expansion in sensitive markets like optics and microelectronics. Lab staff partner with production, running endless pilot batches and dialing in parameters not just for show, but for saleable mass lots.
Recently, additive manufacturing and porous ceramics have pushed for new powder morphologies. 3D-printed ceramics need uniform spherules for consistent sintering. Old methods of grinding didn’t cut it; instead, spray-drying suspended silica yields rounder grains and better packing. The benefits emerge quickly—less dust, fewer QC rejections, and faster print cycles for our customers. Specialty coatings now require surface-modified silicas for better compatibility, so chemists experiment with silane treatments and surface grafting to extend what plain silicon dioxide can do.
Energy use in processing ranks as our biggest constant. Keeping furnace temperatures above 1600°C takes a toll, both in carbon emissions and utility bills. Over the last five years, our engineers have incrementally adopted regenerative burners, scrutinized heat exchanger performance, and targeted waste recovery in grinding. One facility now runs partially on solar, and we’re studying pilot solar-thermal integration. No single fix solves the burden, but a thousand small changes mean less environmental impact per ton. Customers ask these questions now—high-purity silica still needs to weigh its true cost to both producer and planet.
On the labor side, worker retention challenges every plant manager. Young staff see chemistry as theory, but production pits hands-on troubleshooting against everyday problems: pumps jam, conveyors break, raw material varies with every delivery. We run mentorship between veteran operators and new hires—the experience of workers who’ve stayed decades helps us navigate tight orders and unexpected plant shutdowns. Equipment reliability and real-world know-how can’t be borrowed from textbooks.
Turning out silicon dioxide ourselves permits control impossible for traders or processors downstream. Cut corners in raw silica sourcing or skip batch testing, and defects find customers quickly: colors shift in glass, caking destroys a food line, or electronics reject a single load over parts-per-billion deviations. Pulling powder straight from our own lines means knowing each lot’s history. It’s tempting to promise “universal” compatibility, but real-world users teach us every day that fractions of a percentage or micron make the difference between a happy customer and a lost one.
We see loyalty from partners who visited our plant years ago, met technicians, and saw QA checks in person. Relationships carry beyond prices or specs alone. No distributor’s spreadsheet captures the ton-by-ton, line-by-line adjustments we make for every market, or the practical edge gained by a factory that’s lived with silica for decades. Customers, regulators, and our own staff see the results of that history—measured in clean batches shipped on time, production lines running smoothly, and contracts maintained for longer than any procurement cycle.
The world depends on silicon dioxide for much more than people assume: stable food powders, durable polymers, scratch-free toothpaste, high-refraction optics, and even new-generation batteries—all begin with the right grade of silica. Those of us in the business can trace a batch from silica mine through every stage of refinement, watch every test, and stand behind the product each bag represents. In the end, it doesn’t matter how standardized a spec sheet looks. Our role as manufacturer isn’t just to fill containers, but to make sure that what leaves our doors matches the trust placed in us by every user, operator, and end customer along the supply chain.