Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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Barium Silicate

    • Product Name Barium Silicate
    • Alias C.I. Pigment White 27
    • Einecs 233-660-5
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    132480

    Chemical Formula BaSiO3
    Molar Mass 213.39 g/mol
    Appearance white powder
    Density 4.52 g/cm³
    Melting Point 1600 °C
    Solubility In Water insoluble
    Cas Number 1344-00-9
    Crystal Structure monoclinic
    Refractive Index 1.67
    Thermal Conductivity 2.1 W/m·K
    Band Gap 5.0 eV
    Boiling Point decomposes before boiling
    Stability stable under normal conditions
    Color white
    Odor odorless

    As an accredited Barium Silicate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Barium Silicate is packaged in a sealed, 500g HDPE bottle with hazard labeling, chemical name, batch number, and safety instructions.
    Shipping Barium Silicate should be shipped in tightly sealed containers, protected from moisture and physical damage. It is not classified as hazardous for transport under most regulations. Store and transport in a dry, cool, well-ventilated area. Ensure proper labeling and documentation in compliance with local, national, and international shipping requirements.
    Storage Barium silicate should be stored in tightly sealed containers in a cool, dry, well-ventilated area, away from acids and moisture. Keep it out of direct sunlight and incompatible substances to avoid unwanted reactions. Proper labeling and secure shelving are essential to prevent contamination and accidental exposure. Use appropriate personal protective equipment when handling and ensure compliance with safety regulations.
    Application of Barium Silicate

    Applications of Barium Silicate in Industrial Manufacturing

    Barium silicate plays a targeted functional role across a defined range of industrial sectors, where its unique chemical characteristics support specific performance requirements in downstream processing. Below we address the principal implementation scenarios as realized in established manufacturing supply chains, focusing on the regulatory context, proven dosage windows, process integration stages, and the types of finished goods delivered to end-markets.

    1. Glass and Ceramic Insulator Production

    Specialty and technical glass manufacturers use barium silicate for its property-enhancing impact on dielectric strength and chemical durability. In high-voltage insulator and electronic component lines, precise adjustments of silicate levels influence melt viscosity, crystallization control, and resistivity, directly adapting to the demands of advanced electrical infrastructure and device fabrication.

    Industry compliance standards

    • IEC 60112 (Method for determination of the proof and comparative tracking indices of solid insulating materials)
    • ASTM C162 (Standard Terminology of Glass and Glass Products)
    • RoHS 3 Directive (EU) 2015/863 – Restriction of hazardous substances for electronic components
    • GB/T 8182-2017 (China Standard for Electric Porcelain Insulators)

    Typical usage ratio

    • 3–12% by weight in glass/ceramic batch, selected according to the voltage rating, targeted dielectric profile, and melting conditions of the individual manufacturing line.

    Downstream process integration

    • Melted with other oxides in the glass furnace charge or ceramic blend stage, prior to forming and molding.
    • Integrated during pre-batch mixing for uniform network modification.

    Final product types

    • High-voltage glass insulators for power transmission
    • Ceramic spark plug insulators
    • Dielectric glass substrates for electronics
    • Fuse casings and protective lamp envelopes

    2. Enamel and Glaze Formulation for Metal Coating

    Manufacturers in the porcelain enamel sector incorporate barium silicate to promote controlled opacification and stability, adjust thermal expansion, and reduce solubility risks in harsh service environments. The additive serves a critical function for aesthetic as well as protective coatings, especially in appliances and architectural panels that must withstand repeated thermal cycling and exposure to chemicals.

    Industry compliance standards

    • ISO 4531:2018 (Release of lead and cadmium from enameled articles)
    • EN 14483-1:2004 (Test methods for ceramic glazes and glass-based enamels)
    • UL 499 (Standard for Electric Heating Appliances, referencing surface coating requirements)
    • FDA 21 CFR 175.300 (Resinous and polymeric coatings, for equipment contacting food)

    Typical usage ratio

    • 2–10% in enamel frit composition, adapted in relation to base metal substrate, desired gloss, and application technique (spray, dip, flow-coat).

    Downstream process integration

    • Added to raw frit or mixed into pre-milled glaze suspensions prior to firing on the metal surface.
    • Subjected to vitrification at 780–860°C during coating application.

    Final product types

    • Enamel-coated oven and stove panels
    • Domestic water heater tanks and fittings
    • Industrial chemical reactor linings
    • Architectural steel façade panels

    3. Specialty Paint and Anti-Corrosive Coatings

    Anti-corrosive and protective coatings producers select barium silicate as a functional filler to enhance barrier properties and chemical resistance on ferrous and non-ferrous substrates. Its use modulates pigment volume concentration and contributes to the reinforcement of the dry film against corrosive agents, supporting applications exposed to marine, industrial, or chemical process conditions.

    Industry compliance standards

    • ISO 12944 (Paints and varnishes – Corrosion protection of steel structures by protective paint systems)
    • ASTM D3359 (Standard Test Methods for Measuring Adhesion by Tape Test)
    • REACH Regulation (EC) No 1907/2006 (Safe ingredients for chemical protection coatings)
    • SSPC PA 2 (Procedure for Determining Conformance to Dry Coating Thickness Requirements)

    Typical usage ratio

    • Up to 8% in dry blend or slurry, depending on film thickness, required abrasion resistance, and environment severity.

    Downstream process integration

    • Introduced during pigment grinding and pre-mix stages together with extenders and corrosion inhibitors.
    • Dispersed into resin or polymer matrix before letdown and application.

    Final product types

    • Industrial anti-corrosion primers for pipelines and tanks
    • Protective ship hull and offshore coatings
    • Outdoor architectural paints with elevated weather resistance
    • Internal coatings for process equipment in chemical plants

    4. Foundry Mold and Core Manufacturing

    Foundries employ barium silicate in sand-casting mold and core binder systems to increase high-temperature dimensional stability, suppress sintering defects, and limit metal penetration during casting. It serves as a fluxing support, minimizing the risk of veining and other surface flaws in iron and nonferrous casting applications, assuring consistent negative definition for intricate cast geometries.

    Industry compliance standards

    • ISO 17836 (Thermal spraying — Determination of the deposition efficiency for thermally sprayed coatings)
    • ASTM E2349-19 (Standard Practice for Safety in Metal Casting Operations)
    • DIN EN 12890 (Foundry practice — Sand molding and core making)
    • OECD Principles of Good Laboratory Practice for Casting Additive Testing

    Typical usage ratio

    • 0.5–4% of mold/core sand weight, modified for alloy type, pouring temperature, and specific casting geometry requirements.

    Downstream process integration

    • Blended with core sand and inorganic binders as part of automated or manual mold/core preparation steps.
    • Pre-mixed before compaction and curing, or fed into continuous sand-blending systems.

    Final product types

    • Engine block and automotive casting cores
    • Precision nonferrous cast components for aerospace
    • Pump and valve housings
    • Manifold, turbine, or compressor case castings

    5. Functional Filler in Plastic Composite Manufacturing

    In engineered thermoplastic and thermoset composites, barium silicate fillers provide tailored density adjustment, improve electrical insulation, and grant flame retardancy in specific rigid or semi-rigid product lines. This mineral is used by compounding specialists especially where electrical or weight-based specifications dictate the materials selection, such as equipment housings or high-performance panels.

    Industry compliance standards

    • UL 94 (Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances)
    • IEC 60695-11-10 (Fire hazard testing – Test flames)
    • RoHS (Restriction of Hazardous Substances Directive for electrical equipment)
    • ASTM D792 (Standard Test Methods for Density and Specific Gravity of Plastics by Displacement)

    Typical usage ratio

    • 3–15% in polymer compound, adjusted for target dielectric constant, mechanical strength, and specific product qualification test lines.

    Downstream process integration

    • Compounded together with base resins and other fillers in high-intensity mixers prior to extrusion or molding.
    • Fed as part of premix pellet or masterbatch blending before final plastic forming stage.

    Final product types

    • Electrical switchgear housing
    • High-voltage insulating panels
    • Telecom equipment casing
    • Fire-resistant building cladding elements
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    Certification & Compliance
    More Introduction

    Barium Silicate: Experience-Driven Quality From a True Manufacturer

    Product Introduction

    Barium silicate has supported many manufacturing needs for years, from glassmaking to ceramics, and acts as a vital ingredient in a surprising range of industries. As a manufacturer, our approach runs deeper than simple batch production. Every ton we produce reflects decades spent refining formulas, staring down the acidity of every melt, and measuring purity against not just statistics but real-world feedback. We manufacture barium silicate with the reliability you can only get by running the furnaces yourself, not just selling what somebody else made.

    Production and Specifications

    Our manufacturing process centers on control — over starting material quality, particle size, moisture levels, and reactive properties. Across our two principal models of barium silicate, you’ll see real differences, not just in a datasheet but in how they actually behave in your mix.

    One product comes with a typical barium oxide (BaO) content of above 35% and silicon dioxide (SiO₂) stabilizing the crystalline structure, forming a powder with particle distribution mostly within the 5-30 micron range. The other grade, engineered for glasswork and ceramic frits, provides a slightly higher BaO to boost chemical durability for surface coatings and functional glass.

    We rigorously keep soluble barium under 0.1% because it matters for environmental and workplace safety, and we use only raw minerals with proven purity to keep contaminants below detectable thresholds. This isn’t a box-ticking exercise – it’s about making a product we’re confident using ourselves.

    How We Use Barium Silicate

    Barium silicate’s role can change dramatically depending on how you need it. Glassmakers rely on it to boost thermal shock resistance, controlling devitrification and giving borosilicate or specialty glass extra resilience. Decorative ceramics trust it for both colorfastness and its ability to keep glazes from leaching, based on its low solubility and stable structure.

    You see funny claims from marketers about “unmatched performance.” The truth, as we see it, depends on factors like how the powder disperses at your firing temperature or how it binds with other oxides. Our manufacturing teams have tuned grain size, hydration, and even tap density, knowing that some kilns want a fluffier addition, while automated feeders prefer consistent flow and density.

    Our experience – not a desk-bound study – tells us barium silicate works best in glass when kept below 15% of the glass batch, giving high acid-resistance without clouding or spalling, but we have customers who push these limits. Paint and enamel operations love the way it stabilizes viscosity, not just adding whiteness but suppressing pigment migration thanks to low reactivity and fine texture. In electronic ceramics, dielectric properties become the focus, and here we guarantee each shipment meets critical impurity limits that could cause signal drift.

    Differences From Other Oxides

    Most people try to substitute barium carbonate or strontium silicate, thinking they might be cheaper or more available. From our end, that route only brings headaches – more sodium release, glass opacification, and, down the line, increased leaching risk. Barium silicate separates itself with better thermal stability and much lower alkaline solubility.

    Having seen various glass batches on our own lines, we notice barium carbonate introduces more CO₂, causing bubbles during melting, forcing you to extend cycle times or accept lower clarity. With barium silicate, you do not face this disruption; it produces consistent, low-bubble glass, which in high-value applications like lighting or instrument glass can be the difference between scrap and a sellable batch.

    Magnesium or calcium silicates push costs down but compromise acid resistance fast. In sanitaryware, we’ve run side-by-side firings and tracked stain growth, with barium silicate blends outlasting the alternatives. Electric ceramic applications highlight the real difference: barium silicate’s dielectric properties stay stable at higher voltages and frequencies, compared to substitutes that invite breakdown or losses.

    If somebody claims generic silicate chemistry can “stand in” for barium silicate across glass or advanced ceramics, they skip over countless hours of process adjustments, failed batches, and quality complaints from end users. Our plant teams have gone through those cycles and learned that real-world performance always beats spreadsheet calculations.

    Application-Specific Observations

    Glass Industry

    Inside our glass division, the feedback loop between production and glassmakers never stops. We continue to work with partners handling everything from television screens to scientific glassware, watching how small changes in barium silicate content shift transmission, resist fog, or push reheat tolerances. It bridges the requirements for high refractive index, match to critical expansion coefficients, and maintains high resistance to both acid and alkali attack, especially in specialty lighting glass.

    Barium silicate doesn’t simply “enter the melt” — it changes the melt’s behavior. Operators notice smoother batch dispersion and reduced spurt during feeding, which their competitors still struggle with using alternatives. Our high-transparent barium silicate grades reduce the number of inclusions and devitrified phases, allowing optical and instrument glass manufacturers to cut down on post-forming polish or correction. Real cost savings show up through reduced defect rates and increased yield, not just “improved process ability.”

    Ceramics and Enamels

    For ceramics, consistent color matters. Our technical team, often working directly at client sites during scale-ups, notes that using barium silicate lets you deepen color tones, especially in high-temperature glazes, without worrying about fading or chemical migration. Extensive kiln testing proves it cuts the need for additional stabilizers while avoiding the toxic soluble barium left by under-fired carbonate or impure barium sources.

    Sanitaryware, tile, and dinnerware manufacturers trust our product to help them meet regional leach regulations toughened over the past decade. We’ve worked inside plants in Asia, Europe, and North America, comparing glaze durability, and adapting our powder to regional feed systems and batch traditions.

    Electronics and Electrical Ceramics

    Years of serving electronic ceramics plants taught us that barium silicate strikes a rare balance between insulation strength and process robustness. Our grades deliver reliable dielectric constants over the full operating range, and we’ve collaborated on making powder tweaks for multilayer capacitors and dielectric resonators. Impurities and particle size are major factors in dielectric losses, and our field teams, working with production engineers, keep tight controls on iron and alkalis, based on what the application really needs instead of a lowest-cost shortcut.

    Some users approach us after quality escapes with “market substitutes” left unexpected weak points under voltage stress testing. We cut through those issues with technical reviews, plant visits, and reformulation until the product supports both yield and reliability.

    Paints and Anti-Corrosion Coatings

    Anti-corrosion paint formulators prefer the low oil absorption and high whiteness barium silicate brings, compared with alternatives like calcium silicate or heavy clays. Our grades demonstrate low permeability to water vapor, reducing underfilm corrosion risks on steel, especially after extended weather testing. We track feedback from field tests, not just in lab conditions, adjusting grinding and hydration procedures to match the evolving formulations of major coatings manufacturers.

    In highway striping paints and reflective road markings, our barium silicate supports both pigment dispersion and extended outdoor durability. Our technical team works hands-on with paint mixing lines to make sure mill throughput and finish quality remain stable, batch after batch.

    Manufacturing Experience: Challenges and Solutions

    Over the years, manufacturing barium silicate exposed us to plenty of challenges, especially around purity, environmental safety, and real-world batch consistency. Raw material quality can swing with every mine shipment. We evaluate barium minerals well beyond “standard assays,” running our own impurity checks for lead, arsenic, and iron because downstream users want zero interruptions and governments demand low leachable metal limits.

    Efforts to rely on blended, recycled or low-cost mineral feeds backfired in practice, showing up in uneven batch performance or failed glass clarity. Today we control sources tightly and run long-term supplier audits, often at the mines themselves, to guarantee what arrives at our kilns deserves to become your feedstock.

    Handling barium hazards means investing in local exhaust, closed mixing, and employee health monitoring, not just skimming regulatory checklists. Training plant teams never stops: the safety culture surrounds every phase, from high-temperature furnaces to powder packaging and final shipping. Instead of detaching from the factory floor, our engineers and technicians live with the product every day, ensuring workplace safety isn’t just lip service.

    Water consumption and waste output drive continuous improvement. Kiln condensate recycling, closed-loop washing, and off-gas scrubbing have dropped our discharge to well below regulatory limits. We run monthly process audits and welcome third-party inspectors, reflecting both internal standards and external accountability to our neighbors and customers.

    Market Trends and Feedback Loops

    In the global market, demand shifts happen quickly. Glass and ceramic producers face fluctuating specs, changing regulations, and sometimes abrupt changes in product mix — from LED lighting to environmental ceramics. As a manufacturer, we must predict and adapt early to help customers avoid costly overhaul and downtime.

    We keep direct lines to long-term clients, inviting open criticism. If a batch performance falls outside their expectation during a new firing schedule or glass formulation, our technical staff visit the plant, run production-scale trials, then tweak powder parameters back at our facility. We prioritize live feedback over historical averages, leading to gradual but steady improvement.

    Every time regulations move, especially around heavy metal content or leaching limits, we talk directly with end users and regulatory bodies. This feedback directly guides plant investments, so the product you receive consistently meets tighter rules, not simply “barely passes today.” This approach reduces customer risk and improves trust, as our improvement record is visible over years, not hidden inside compliance paperwork.

    Comparative Perspective: Manufacturer vs. Middlemen

    Firsthand experience on the factory floor makes a world of difference. Middlemen often talk price and stocking convenience but lack the lived-in knowledge of how minor purity shifts, moisture content, or grind size impact end-user production. By monitoring our own kilns, and facing the same regulatory inspections as our customers, we offer more than “mere compliance” – we deliver a product reflecting the discipline of making, not just selling.

    Unlike traders, who disappear when quality drifts or application problems surface, we face up to the reality of each batch. Our guarantee comes from hands-on traceability, technical staff embedded within the process, and decades-long relationships with diverse industries from glass artisans to global electronics brands.

    Commitment to Ongoing Improvement

    Even after years in the field, there is always room for better. We regularly revisit our own process maps, listening to frontline operators and end users about what works and where sticking points show up. Recent efforts focus on further decreasing trace contaminants, tailoring particle size curves for new electronic ceramics, and collaborating in research projects on next-generation glass compositions.

    Our investments in automation haven’t replaced hands-on knowledge. Skilled teams still check powder appearance, flow, and handling at every stage, understanding how subtleties missed by sensors show up during actual user blending or firing. Algorithms help, but experience and real-world testing tell the last part of the story.

    In our view, barium silicate isn’t simply a “commodity oxide.” It’s a puzzle piece critical to your formulation’s success, whether you make a structural ceramic, a clear laboratory flask, or a next-generation capacitor. Our role is to bring the experience and reliability only a true manufacturer can deliver, standing behind every lot with a proven record, a commitment to quality, and a willingness to put boots on the ground to support any process need.

    Looking Forward With End Users

    As regulations tighten and process requirements grow more demanding, our constant learning continues. We work hand-in-hand with customers to anticipate upcoming issues, such as lower permissible leach rates or faster production cycle times. Open collaboration drives our technical adjustments and underpins product innovation.

    We believe the biggest advances come through hands-on partnership, not remote advisement. Whether you’re scaling up a new frit, troubleshooting a paint batch, or refining an electronics dielectric formulation, we are ready to listen, learn, and adapt. The best solutions often start not from a specification sheet but from conversations on the production floor and trust built through consistent, proven supply.

    Our experience with barium silicate manufacturing doesn’t just underpin our product – it shapes the conversations we have, the way we approach process challenges, and the value we provide in every shipment. Choosing barium silicate from a manufacturer who understands both chemistry and the realities of production grants an edge impossible to duplicate from a distance.