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HS Code |
592225 |
| Chemical Formula | Na2SiO3 |
| Molar Mass | 122.06 g/mol |
| Appearance | White crystalline solid |
| Solubility In Water | Highly soluble |
| Density | 2.4 g/cm³ |
| Melting Point | 1088 °C |
| Boiling Point | Decomposes |
| Ph Of Solution | Strongly alkaline |
| Cas Number | 6834-92-0 |
| Odor | Odorless |
| Hazard Class | Corrosive |
| Common Uses | Detergents, water treatment, adhesives |
| Stability | Stable under normal conditions |
| Autoignition Temperature | Non-flammable |
| Reactivity | Reacts with acids to form silica gel and salt |
As an accredited Sodium Metasilicate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 25 kg white HDPE bag, labeled "Sodium Metasilicate," features hazard symbols, product details, and manufacturer information, securely sealed. |
| Container Loading (20′ FCL) | 20′ FCL can load about 25 metric tons of Sodium Metasilicate, typically packed in 25kg bags, on pallets or loose. |
| Shipping | Sodium Metasilicate should be shipped in tightly sealed, clearly labeled containers to prevent moisture absorption. Store and transport in a cool, dry, well-ventilated area away from acids and incompatible materials. Handle with protective equipment. Comply with relevant shipping regulations for corrosive substances, including appropriate hazard labeling and documentation. |
| Storage | Sodium metasilicate should be stored in a cool, dry, and well-ventilated area away from moisture and incompatible substances such as acids. Keep the container tightly closed and clearly labeled. Store in corrosion-resistant containers, and avoid contact with aluminum, zinc, and strong oxidizers. Ensure areas are equipped for spill containment and personal protective equipment is available for safe handling. |
| Shelf Life | Sodium Metasilicate typically has a shelf life of 2 years when stored in a cool, dry, and well-sealed container. |
Applications of Sodium Metasilicate in Industrial ManufacturingSodium metasilicate finds broad use as a fundamental inorganic chemical building block in several manufacturing sectors. Our direct integration into partner workflows optimizes processing performance and end-product functionality. The following scenarios detail major downstream applications, quality compliance frameworks, and specific usage parameters for industrial partners. 1. Heavy-Duty Detergent Formulation for Industrial CleaningIndustrial detergent producers incorporate sodium metasilicate in high-alkaline washing powders and liquids to provide emulsification, scale dispersion, and protection against metal corrosion during the cleaning of plant equipment, engine parts, and food processing lines. It functions as a chelating and buffer agent when blended into concentrated granular or liquid bases, particularly where hard water resistance and residue-free rinsing are demanded in facilities subjected to strict hygiene audits. End-use evaluation often centers on foam stability, surfactant compatibility, and stability in elevated-temperature circuits. Industry compliance standards
Typical usage ratio
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2. Textile Processing and Scouring AgentsIn textile manufacturing, sodium metasilicate serves as an essential scouring agent utilized during the desizing, scouring, and bleaching of cotton and synthetic fibers. It supports the breakdown of natural waxes, oil residues, and sizing compounds, prepares fibers for dye uptake, and acts as a stabilizer for peroxide bleaching processes. Its role is critical for achieving uniform whiteness and fiber wettability without fiber damage. Process reliability is monitored through QC titration of alkalinity and visual analytics for residue removal. Industry compliance standards
Typical usage ratio
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3. Ceramic and Porcelain ManufacturingSodium metasilicate is widely employed in ceramics production as a deflocculant and dispersant, optimizing slip viscosity and preventing aggregate formation during wet milling of clay blends, feldspar, and kaolin. Ceramists value its role in maintaining rheology stability, leading to denser casting slips, fewer firing defects, and improved glaze application. Accurate dosing prevents excessive surface alkalinity, and each plant validates both slip flow and green body density as part of end-line QC. Industry compliance standards
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Sodium metasilicate acts as a key ingredient in scale inhibitor blends designed for industrial water treatment, particularly in boiler feedwater, closed-loop cooling systems, and process water circuits where hardness control and corrosion prevention are vital. The compound complexes calcium, magnesium, and heavy metals, reducing scale buildup and mitigating corrosive attack on metals such as mild steel and yellow metals. Real-time monitoring of feedwater quality and ongoing compliance with industrial water standards form part of our downstream partners’ audit checklists. Industry compliance standards
Typical usage ratio
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5. Pulp and Paper ManufacturingPaper mills employ sodium metasilicate in kraft and sulfite pulping lines to enhance lignin removal, facilitate deinking, and optimize process stream alkalinity. It participates in dissolving pitch, stabilizing bleaching agents, and improving the whiteness and surface characteristics of recycled fiber pulp. Direct plant observations track improvements in chemical cleaning cycles, effluent load reductions, and pulping yields when used within established dosing protocols. The compound’s purity and grain size play a direct role in process repeatability. Industry compliance standards
Typical usage ratio
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6. Adhesives and Binders in Mineral Wool & Insulation ProductionIn the mineral wool industry, sodium metasilicate provides binding properties that enable coherent fiber formation, high tensile strength, and resistance to moisture. Manufacturers dose precise quantities to prevent delamination and ensure thermal stability through successive high-temperature curing cycles. Binder selection and dosages differ according to fiber material—glass, slag, or rock wool—with plant trials establishing the balance between mechanical performance and water resistance. Documentation includes fire resistance and mechanical QC records. Industry compliance standards
Typical usage ratio
Downstream process integration
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Competitive Sodium Metasilicate prices that fit your budget—flexible terms and customized quotes for every order.
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People might recognize the name sodium metasilicate as just another chemical in the laundry or cleaning industries, but as a manufacturer deeply immersed in its production, I see it in a different light. On our end, this substance stands out for the role it plays across industries, from heavy manufacturing plants to food processing. In our facility, sodium metasilicate isn't just a powder or a liquid on a spec sheet. It's a critical ingredient that supports real-world production problems suppliers and users encounter every day.
Inside the plant, sodium metasilicate doesn’t come in one shape or size. Our processes produce several grades – most notably the pentahydrate and anhydrous forms. You’ll see the pentahydrate variety in powder form, where the crystals take on a nearly snowy look, but they don’t just look pleasing — they offer real functional differences we notice in applications. The anhydrous variety, meanwhile, offers more concentrated performance with less moisture. Every batch rolls off our lines after strict checks, not just for appearance or basic sodium metasilicate content, but for purity, density, and how well it integrates with other industrial chemicals in our customers’ formulas. Production fluctuations, humidity, and feedstock purity all influence the final model, but with each run, we keep specifications tight, holding ourselves to tolerances that cut down on error during blending or dosing.
When a detergent manufacturer places an order, they don’t make demands lightly. They need a reliable sodium metasilicate pentahydrate with a particular grain size – not for show, but because their mixing hoppers will clog with an off-spec batch. Over the years, we’ve changed our crystallization processes to suit those requirements. Food processors will call for a high-purity, food-safe grade, and every year, those requirements get stricter. We tag every bag with batch numbers and origin—important for traceability, but an even bigger deal when food safety audits come around. We have to know, not guess, that our silica-to-sodium ratio stands precisely where their recipe calls for.
Let’s talk about usage, not just in theory but as we see it among the industries we serve. Our sodium metasilicate often goes into cleaning and degreasing formulas. Factories and commercial laundries run on it because it cuts through built-up greases and organic residues that ordinary soap won’t touch. Years in cleaning chemistry taught us that sodium metasilicate’s high alkalinity, and its ability to break down fats and proteins, outpaces the old-hand soda ash by a mile. It doesn’t just soften water, it reacts with hard water ions directly, keeping deposits off industrial equipment.
Our experience with the ceramics and construction trades also stands out. Tile fabricators and builders who demand a consistent set on their batches of mortar find sodium metasilicate brings just the right combination of binding strength and chemical resistance. That comes straight from the silicate’s structure, not something you find with general-use alkalis. In making fireproofing boards or insulating products, high-purity models help our partners maintain integrity at higher working temperatures. Every time our technical staff get calls about batch inconsistencies in customer production lines, it almost always tracks back to changes in silicate source or grade. Precise sourcing matters.
Pulp and paper processors, another major client for us, rely on the substance during bleaching and de-inking. In this space, many have experimented with cheaper alternatives, but consistently report back that sodium silicate gives them brighter, cleaner pulp. The caustic nature and buffering power prevent fiber breakdown even during prolonged exposure to strong agents.
Questions often crop up on the differences between sodium metasilicate and its chemical cousins. Generically, silicates might all look the same if you’re not handling them up close. The differences become obvious when you troubleshoot an operation. Sodium metasilicate, especially in our pentahydrate or anhydrous models, holds more alkali content than typical sodium silicate ‘liquid glass’ varieties. That higher alkalinity means greater reactivity, which brings real cleaning power and water softening.
Some ask why a manufacturer would bother picking metasilicate over simple soda ash or caustic soda. From our end, the choice comes down to performance and safety. Sodium metasilicate, in its various models, develops less heat during hydrolysis than caustic, making it safer during large-scale blending. We’ve seen it in our own mixing tanks: adding caustic soda can cause the temperature to spike, risking overcorrections or equipment damage. Sodium metasilicate delivers strong alkalinity with more predictable results. The pentahydrate version dissolves easily, making it a favorite for automated dosing systems, reducing clogging and downtime.
Another common question centers on environmental impact. Raw material sourcing, production byproducts, and the end-user waste stream all have to be considered. Our plant made investments early on into effluent treatment, recovering sodium and silica-rich wash water for closed-loop use. By controlling source materials, and keeping heavy metal traces well under strictest thresholds, we support both the environment and the customers whose applications demand low-toxicity inputs. Companies formulating for food and pharmaceuticals send their own auditors. We welcome them, because these additional eyes help us spot improvement points in safety and sustainability.
After years in production, we don’t treat sodium metasilicate as a static commodity. The ceramics industry, for example, led us to reformulate certain grades for reduced dusting and better granule flow, an issue raised directly by machine operators facing inhalation risk and handling difficulties. Environmental rules in agriculture and food led us to develop a food-grade variant, and those investments paid off after government standards increased scrutiny of inorganic feed additives.
Technical support remains a constant feature of our operation. Customers typically don’t want a cookie-cutter product. They want sodium metasilicate adapted to their processing facilities—whether that means larger, dust-reduced granules for easier handling, or a finer mesh for rapid dissolution. For glass and construction adhesives, we’ve shifted our drying cycles to provide a more consistent moisture profile. Sometimes customers come to us as a last resort after other vendors failed to deliver the right granulation or purity; we listen closely, test samples, and adjust processes on the fly. These conversations help us stick to solutions, not just formulas.
We’ve seen growing interest in green chemistry. Some of our largest partners need certification down the entire chain, driving our own upstream adjustments. Batch traceability, documentation, and third-party audits aren’t just paperwork, they hold us accountable and allow us to guarantee sodium metasilicate fit for advanced applications, like sustainable textiles or biodegradable packaging adhesives.
Any chemical deserves respect in use and storage. Sodium metasilicate, with its strong alkalinity, needs careful handling. Our team invests consistently in operator training, updated protective equipment, and preventative maintenance on storage areas. Accidental exposure can cause burns or eye irritation—we know, we’ve worked through those real-world incidents. By keeping strict controls on dust and hygroscopicity, we cut down risks for workers and downstream users. Customers with unique sensitivity requirements—like those making water treatment dosing chemicals—want confirmation of purity, anti-caking treatments, and even packaging materials. Every batch ships with a full run-down of quality checks, which we update as equipment and global standards change.
Globally, industrial accidents related to improper handling of strong base chemicals, including sodium metasilicate, keep chemical manufacturers like us vigilant. We don’t gloss over those lessons. We enforce closed-system handling, maintain spill response drills, and check personal protective protocols regularly, for both our staff and site visitors. These aren’t just compliance measures—they reflect real lessons learned from decades handling powerful chemicals day in and day out.
There’s a big difference between selling sodium metasilicate and making it, day after day, in ton-scale batches. We see firsthand how assumptions in the lab can crumble in a customer’s plant. For instance, water absorption rate changes rapidly depending on how the product is stored. We learned to adjust our packaging after early storage tests in variable humidity zones. Customers, especially those making auto-dosing blends, depended on us to solve these problems before product went out the door.
Practical field experience taught us the limits of theory. Handling metasilicate next to caustic soda or sodium carbonate, you feel the differences in dust, in hydration heat, and in how much time it takes to break down during processing. On multiple occasions, a formulation engineer at a customer site ran into batch gelling, and we traced the cause to fluctuations in silicate structure tied to raw material variability—not something you spot without years of hands-on work and constant quality monitoring. Only a manufacturer sees these issues from the inside.
We hear about sodium metasilicate’s cleaning power from factory floor managers who call to say replacing lower-performing alkalis saved them thousands in equipment downtime. Textile plant technicians have shared their preference for our high-purity models, which minimize residues in sensitive dye processes. Feedback comes not just on the chemical’s function, but on how easily it integrates into automated feeders or how consistently it dissolves at minimum energy.
In ceramics and construction, mixing times and set strengths matter more than theoretical performance. Contractors pressed us for granular models to stay dust-free and stable under shifting on-site weather. We met these requests by investing in improved drying, screening and anti-caking agent addition.
Sodium metasilicate production never stands still. Over the last decade, tighter regulations and higher customer standards forced us to rethink both our internal monitoring and external certifications. Today’s customers expect batch-specific traceability and third-party validation. Every kilo that leaves our plant carries data tying it back to raw sources, process settings, and documented storage histories. This transparency builds confidence among users—critical in industries like food, pharma, and electronics where contamination risks hold real consequences.
With advances in environmental oversight, we’ve shifted toward water recycling, raw material streamlining, and even re-use of byproducts to cut down on overall waste. By reducing our environmental footprint, we answer not just to regulators, but to partners taking sustainability seriously in their own supply chains.
Experimentation also drives improvement. We’ve collaborated with universities and industrial labs to test new applications for sodium metasilicate, from advanced catalysts to alternative construction binders. Each project offers lessons that filter back into our own processes, ensuring industrial sodium metasilicate keeps pace with changing needs.
Book learning only takes a user so far. True expertise develops box by box, bag by bag, as sodium metasilicate enters real-world production. The key differentiators for us don’t always show up in lab specs. Handling, dust formation, storage stability, and tank compatibility often matter more for a customer’s bottom line than a decimal place on a silica or sodium percentage.
Experience taught us that “sodium metasilicate” on a shipping invoice says nothing about cooling rates, caking behavior, or adaptability to specific feed systems. Only repeated feedback loops, regular testing, and open channels with end users allow us to refine the offering. We invest in training for customer technical teams, site visits, and shared troubleshooting protocols to build mutual understanding. This two-way exchange allows everyone to avoid surprises, capitalize on sodium metasilicate’s strengths, and address its weaknesses directly.
Dealers and distributors can’t see these differences from a distance. Manufacturers and plant operators send us real samples and process data because they know we understand factory challenges—high residue rates, inconsistent batch performance, poor solubility in hard water. Solutions grow not from generic advice, but from practical collaboration with both users and our own technical experts on the floor.
For those of us who handle tens of tons of sodium metasilicate each week, every small improvement in process yield, handling safety, or product uniformity matters. Our customers push us to fine-tune not just the chemical specs, but also the usability and safety profile batch by batch. Fluctuations in raw silicate contribute to performance drift, so we doggedly monitor and adjust for narrow tolerances. Small changes ripple out across the supply chain, so traceability and feedback stay essential.
By taking part in industry roundtables, regional safety workshops, and regulatory audits, we keep sodium metasilicate production up to date while opening ourselves up to learning from peers. Talking shop with other producers, we compare notes on blending approaches, dust control strategies, and sustainability benchmarks. This collective experience sharpens our own manufacturing capabilities.
Years of producing sodium metasilicate showed us that change arrives fast in chemical manufacturing. Consumer tastes in cleaning, environmental expectations for sustainable materials, and continual advances in technology all keep us on our toes. As a manufacturing team, we remain committed to not just supplying a commodity, but exploring its full scope: improving energy use, minimizing risk and environmental impact, and constantly learning from those who rely on our product in the real world.
People may refer to sodium metasilicate as just a building-block ingredient, but our direct experience tells a richer story. Every improvement in process efficiency, safety, and application support has roots in honest conversations and tough problem-solving, both inside our production lines and in users’ facilities around the world.
From our vantage point, sodium metasilicate represents more than a chemical formula. It shows what can happen when experience, continuous investment, and real-world feedback meet head on. That focus never fades, as we continue to evolve together with every user who comes through our doors.
