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HS Code |
981303 |
| Chemical Formula | MgSiO3 or Mg2SiO4 |
| Appearance | White powder or crystalline solid |
| Molecular Weight | 100.39 g/mol (MgSiO3) |
| Solubility In Water | Insoluble |
| Density | 2.9 to 3.2 g/cm3 |
| Melting Point | 1545°C (MgSiO3) |
| Ph | Neutral (7.0 in suspension) |
| Odor | Odorless |
| Hardness | 5-6 (Mohs scale) |
| Thermal Stability | Stable under normal conditions |
| Cas Number | 1343-88-0 |
| Refractive Index | 1.6–1.7 |
| Uses | Used as an anticaking agent, in ceramics, as a filler in cosmetics, and in filtering |
| Boiling Point | Decomposes before boiling |
| Taste | Tasteless |
As an accredited Magnesium Silicate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Magnesium Silicate is packaged in a 25 kg white woven polypropylene bag, featuring clear labeling and safety instructions for handling. |
| Shipping | Magnesium Silicate is typically shipped in tightly sealed bags or drums to prevent contamination and moisture exposure. It should be transported in a dry, well-ventilated area, away from incompatible substances such as acids. Shipping must comply with local and international regulations, ensuring proper labeling and handling to guarantee safety throughout transit. |
| Storage | Magnesium silicate should be stored in a cool, dry, well-ventilated area, away from incompatible substances such as strong acids. Keep containers tightly closed when not in use to prevent moisture absorption and contamination. Store in clearly labeled containers, away from food and drink. Avoid creating dust and ensure appropriate spill control measures are in place to maintain a safe storage environment. |
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Purity 99%: Magnesium Silicate with purity 99% is used in pharmaceutical tablet formulations, where it ensures high adsorption capacity and chemical inertness. Particle Size 5 µm: Magnesium Silicate with particle size 5 µm is used in cosmetic powders, where it provides superior texture and smooth application. Surface Area 300 m²/g: Magnesium Silicate with surface area 300 m²/g is used in edible oil refining, where it achieves efficient removal of impurities and color bodies. Stability Temperature 700°C: Magnesium Silicate with stability temperature 700°C is used in plastic reinforcement, where it contributes to thermal resistance and long-term structural integrity. Viscosity Grade Low: Magnesium Silicate with low viscosity grade is used in paint formulations, where it enhances flow properties and pigment dispersion. Moisture Content <1%: Magnesium Silicate with moisture content below 1% is used in rubber compounding, where it minimizes moisture-related processing issues. pH Neutral: Magnesium Silicate with neutral pH is used in food processing, where it preserves product quality and prevents unwanted chemical reactions. Oil Absorption 110 mL/100g: Magnesium Silicate with oil absorption capacity of 110 mL/100g is used in anti-caking agents, where it increases free-flowing properties in powdered foods. Molecular Weight 200 g/mol: Magnesium Silicate with molecular weight 200 g/mol is used in water filtration systems, where it supports contaminant removal efficiency. Sintered Form: Magnesium Silicate in sintered form is used in ceramic glazes, where it improves surface finish and mechanical strength. |
Competitive Magnesium Silicate prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.
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Tel: +8615371019725
Email: admin@sinochem-nanjing.com
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Our crew has spent years working with magnesium silicate—learning its quirks, finding better ways to control reaction and purification, and seeing firsthand just how much a tight production line matters for downstream customers. Out here on the line, each batch of magnesium silicate comes off with slight differences in particle feel, filterability, or moisture take-up, depending on how you handle the raw minerals and your drying approach. This is where running your own reactors and blending gear, rather than just repackaging someone else’s product, becomes a game changer for end users who depend on consistent absorption or precise rheology.
Our team produces several model grades of magnesium silicate, with particle size ranging from 5 microns to above 60 microns—dedicated lines calibrated for high purity food-contact standards or industrial filtration needs. We process using both natural magnesite ore and refined magnesium salts, giving flexibility for applications where trace metal content, color stability, or absorption speed can make or break a final product. Every specification, from pH through bulk density to moisture, is tested by hand and on calibrated instruments daily. Batches that do not make the grade get recycled or down-blended—not relabeled and shipped out. The only way to spot the visible difference from lab-batch to lab-batch is to walk through our plant and talk directly with the operators.
Years of feedback from customers in oil refining, paint, rubber, and food industries have taught us that magnesium silicate is not just a fill-in for talc or a generic absorbent. When clients in edible oil production look for a clarifying agent, for example, the challenge happens in the holding tanks—any excess iron or heavy metals, or a shift in surface structure, causes off-colors or takes longer to settle out, costing real dollars. By refining our raw inputs and controlling surface properties, our magnesium silicate passes the sensitive SNF and FFA reduction tests, batch after batch.
In industrial coatings, paint producers often hit a ceiling with standard talcum or low-cost silicates because of chalking, settling, or changes in viscosity. Here, our tailorable grade of magnesium silicate supports high loading, scrubbing resistance, and precise tint backing. Technicians often compare the ease of blending and the finish quality; every property, down to oil absorption values, measures better in field QC when the source material comes from a plant with real process oversight—not a broker warehouse.
Rubber and plastics factories prefer our controlled particle size grades. On their own lines, poorly sieved or unwashed competing silicate clogs their systems and causes surface defects during curing. Magnesium silicate made in-house, using quality control at each shipment, avoids these headaches—no surprise gels, no color drift, and consistent flow every run.
A number of clients in the water treatment space rely on higher surface area grades as a support or buffer. Each lot they buy comes with the confidence that the composition and contaminant levels have already cleared far stricter thresholds than the standard commercial talc grades shipped in bulk from multiple traders, because our team owns every material step from mining or dissolving to drying and screening.
Buyers know a field test can tell the difference between a magnesium silicate that was double-dried for a low moisture level and a cheap blend that quickly picks up water during storage. They see this reflected in how well the product flows into feeders or how quickly it disperses with other components. Maintenance managers see fewer clogged lines when they source consistently sieved powders with guaranteed top-size control. Process engineers in edible oil refineries, or paint makers pushing capacity, send us pictures and samples of off-spec runs they got elsewhere, with uneven flow or batch failure that tracks back to inconsistent mineral quality or poor surface coating.
Because we do not operate as a distributor, all claims and guarantees come from our own batch records and QC checks. On our site, you’ll find full COAs with traceable lot numbers, updated MSDS with real-world shelf-life figures, and, when needed, technical people willing to tell you the truth about compatibility or side-effects of our grades. This upfront approach helps partners avoid repeated batch failures or costly downtime—issues that too often arise after buying allegedly “equivalent” grades from brokers whose own sources change by the container.
For edible oil producers, magnesium silicate’s adsorptive power matters more than simple bulk price. Silicate that carries over reactions or leaves residues slows down oil filtration and brings up stricter regulatory attention overseas. Controlling the presence of trace elements—including iron, lead, and arsenic—requires managing every step, from raw magnesite selection to the conditions used during wet precipitation and drying. We’ve rebuilt reactors and invested in multiple filtration runs to handle these challenges, documenting every procedural tweak so replicability remains high, and exports stay certified safe.
Paint and coating manufacturers care about two factors: particle size uniformity and absorption. They also want a silicate that stays bright and white, especially for architectural or industrial primers. Talc and ground silica powder can leave the paint duller or tacky, depending on humidity and solvent blends. Our magnesium silicate, produced with controls at hydrothermal synthesis and post-processing, maintains color and brightness after extended storage—a difference the field chemists report during outdoor large-panel tests.
Rubber companies testing new elastomer blends focus on reinforcing effects at different curing temperatures without plastification or surface blush. Many generic silicates under uncontrolled conditions show significant lot-to-lot variation on curing speed and tensile strength. By producing silicate under defined parameters and keeping tight particle size distribution, we see repeatable performance in real-world client blending lines, saving them repeated formulation tweaks.
Traders often suggest magnesium silicate as a drop-in replacement for talc, synthetic alumina, or calcium silicate. The reality in our shop is more practical. Customers report differences in handling and even regulatory scrutiny. Talc, common in plastics and paints, sometimes carries asbestos risk, especially in mined versions with less rigorous source screening. Calcium silicate offers strong flow but lower oil or moisture uptake—meaning more product used per batch, raising total costs and complicating mixing. Synthetic alumina absorbents run higher in price and bring reactivity concerns, especially in food-contact cases.
Manufacturing magnesium silicate gives the advantage to avoid these tradeoffs. By adjusting precipitation chemistry and grading the powder, we serve both high purity needs—such as in pharmaceuticals or food maintenance—and industrial lots where robustness and price/pound remain the top concern. The side-by-side data shows our silicate picks up more process oil, dusts less, and stores with less caking over time, compared to less controlled alternatives. Plant and QA staff see it clearly in selection tests: less blocked feed lines, more stable suspensions, and a visible improvement in finished product brightness or filter speed.
Every lot of our magnesium silicate comes out of reactors operated and monitored by technical staff, not just automated feeds or contract blenders. This means every moisture cycle or screen size change is recorded and tracked back to real equipment settings, not reported after the fact from outside labs. Specification isn’t just a number; it’s an ongoing target rebuilt daily. A high-grade, pharmaceutical-ready lot comes from separate mixer, filtration, and drying lines equipped with additional dust management and contaminant trapping—scrapped frequently to avoid legacy issues.
Our main production routes, both from purified magnesite and magnesium chloride, allow us to customize surface area and pH for the application at hand. Food and pharma producers favor the magnesite route for its low heavy metal count, while industrial clients often prefer higher surface area options derived from the salt pathway for their bulk filtration or moisture uptake needs. It took years to balance both lines, optimizing for minimal process waste and energy use—detail most resellers never see, but which makes a difference when producing tight-lot batches for regulated industries.
Lab records show daily sample pulls for particle size, residue on ignition, total surface area and density. Large production runs get divided into small batch lots, each traced to a master lot number and stored in sealed, moisture-controlled bins. Customer returns and complaints always lead to process reviews—real-world evidence gets logged and compared to lab tests, keeping front-line staff accountable. All this builds a track record that can be tracked by regulatory and client audits, not just sales brochures.
Production never runs without hiccups. Moisture drift during monsoon months, or slight contamination at bagging, can wreck an otherwise perfect lot. Some years the raw magnesite supply shows a visible shift in minor mineral profile, and the team has to tune reaction times and downstream purification. These obstacles only strengthen our commitment to root cause analysis after an off batch and to conversations with field users. Smoothing out these bumps—not just blaming the upstream mines—keeps our partners producing and their buyers happy.
Tightened regulations worldwide drive us to renew food grade and high-purity certifications every audit cycle. That means open lab books, clear handling procedures, and immediate segregation of anything that does not fit the published spec. Instead of holding product for months while waiting for external lab checks, our own team runs atomic absorption and colorimetry on every lot to clear results in hours. Our attitude holds: better to discard a marginal batch than risk a recall or customer rejection—because real trust is earned in repeat delivery, not in claims or certificates alone.
Growing environmental oversight leads to investment in recycling wash waters and energy reduction for kiln drying. We’ve replaced some thermal cycles with lower-emission processes; waste recovery at the rear end now reduces landfill needs, and all waste streams face internal testing before disposal or reuse. Staff on the ground see these changes impact both compliance and real running costs—good for both long-term clients and the environment we work in.
Every now and then, we get new questions from forward-thinking customers: “What about nano-sized particles for next-generation composites?” “Is your magnesium silicate free from suspect micro-contaminants?” These push us to trial new separator technologies, run below-0.5 micron sieving, and test unusual functionalization schemes. Not every trial pans out—some cost more than they return—but the push for new grades and quality keeps our lines honed and our staff motivated.
Customer feedback defines product improvement. Engineers at customer plants explain real-world problems—such as pickup from remote storage during high humidity, or blending issues in new automated batch plants. A tweak in drying, a rethink of particle cutoff, or a new packaging format comes directly in response. Where large distributors push single specs and slow-moving inventory, in-house manufacturing responds by changing lot blends, adjusting surface treatments, or even running custom small lots to help a partner hit a regulatory or functional target.
Groups in emerging economies increasingly demand quality magnesium silicate for new refining, cleaning, and environmental projects. Working with local regulators on documentation and rapid shipping, our manufacturing base supports their goals in ways that a distant trader, shipping generic or container-mixed goods, cannot always match. Transparency, traceable sampling, and batch-level assurance travels alongside each order.
Training and R&D never halt. As chemical input costs shift and global supply chains turn more volatile, owning the manufacturing process means we flex toward lower-waste, higher-yield production without waiting on third parties. The next generation of magnesium silicate, from ultra-high purity for flavor stabilization to advanced grades aimed at synthetic polymer development, already takes shape in our test rooms.
Our position as a direct magnesium silicate manufacturer means we take pride, and real responsibility, for what leaves the warehouse. The knowledge runs from the mineral feed piles to the finished goods store, through hands-on team members who own their work, not just label someone else’s. Manufacturing gives the ability to guarantee every variable our partners count on—from physical integrity to food-contact safety, down to the details that only show up in a nation’s regulatory inspection or a client’s own line audit.
Each application—whether bleaching oils, supporting catalysts, reinforcing rubbers, or brightening plastics—gains from knowing the supplier manages every detail of the raw mineral, process, and lot testing. Over the years, we have seen customers save millions by switching to controlled-lot, manufacturer-tested magnesium silicate, dropping waste, boosting productivity, and eliminating the hidden risks of buying from unnamed sources. This trust cannot be built overnight, or by anyone without a direct hand in the production process.
For any user serious about performance, safety, environmental compliance, or just getting the best batch every time, magnesium silicate is more than a price line on a tender—it's a partnership between maker and user, grounded in shared experience and mutual improvement. Over the decades, every process update, every raw material tweak, and every client complaint has sharpened and improved our product. The result can be seen not just in lab certificates, but out in the world: better-running plants, fewer recalls, and a supply chain that supports both growth and responsibility. That is what it means to manufacture magnesium silicate—not just to sell it, but to stand behind what you make, every single batch.