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HS Code |
289785 |
| Chemicalformula | B2O3 |
| Molarmass | 69.62 g/mol |
| Appearance | White, glassy solid |
| Meltingpoint | 450 °C |
| Boilingpoint | 1860 °C |
| Density | 2.46 g/cm3 |
| Solubilityinwater | Insoluble |
| Casnumber | 1303-86-2 |
| Refractiveindex | 1.630 |
| Odor | Odorless |
| Ph | Acidic (in aqueous solution) |
| Crystalstructure | Amorphous or trigonal |
| Thermalconductivity | 1.2 W/(m·K) |
| Flashpoint | Non-flammable |
| Color | Colorless to white |
As an accredited Boron Oxide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | White, tightly sealed 500g HDPE bottle with hazard labeling, product name 'Boron Oxide', and manufacturer details printed clearly on the label. |
| Shipping | Boron oxide should be shipped in tightly sealed containers, protected from moisture and incompatible materials. It is typically transported as a solid in fiber drums or glass containers. Ensure it is labeled correctly and handled according to regulations for non-hazardous chemicals. Store and ship in a cool, dry, well-ventilated area. |
| Storage | Boron oxide should be stored in a tightly sealed container in a cool, dry, well-ventilated area away from moisture and incompatible substances such as strong acids and bases. It is hygroscopic and reacts with water, so containers must be kept tightly closed. Avoid exposure to heat and store away from sources of ignition. Always label storage containers clearly. |
Applications of Boron Oxide in Industrial ManufacturingBoron oxide is an essential raw material for multiple industrial production segments. Our precise synthesis and consistent quality ensure reliable integration into strict formulations and engineered processes. The following application blocks detail specific downstream industries, technical standards, processing steps, and target finished products. 1. Glass and Glass Fiber ManufacturingLeading technical glass and fiber producers depend on boron oxide to raise chemical durability and thermal shock resistance in specialized formulations. The oxide modifies the silica network, lowering melting point and viscosity for easier processing in float, container, and insulation glass lines. Our material meets strict requirements for optical clarity and uniform boron distribution, enabling high-grade glass production for demanding end-use environments. Industry compliance standards
Typical usage ratio
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2. Ceramic Glazes and EnamelsCeramics and enamel factories incorporate boron oxide to ensure robust chemical bonding of glazes and an even, defect-free fired surface. The oxide acts as a key flux, improving both fusibility and gloss while stabilizing coloration during high-temperature firing. Targeted use optimizes glass phase development critical to acid- and alkali-resistant enamel coatings. Industry compliance standards
Typical usage ratio
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3. Metallurgy: Flux and Alloy AdditiveFerrous and non-ferrous metallurgy plants use boron oxide for fluxing during steel and alloy production. As a strong oxide scavenger, it enhances slag fluidity, removes impurities, and controls oxidation states. Trace additions in specialty alloys alter microstructure for improved mechanical properties. Our material’s purity supports uninterrupted furnace operation and alloy quality consistency, directly impacting downstream rolling and shaping lines. Industry compliance standards
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4. Semiconductor and Electronic Glass ProductionSemiconductor wafer and electronic glass fabrication require boron oxide for highly specialized borosilicate glass and deposited oxide layers. Controlled addition ensures precise dielectric, softening, and expansion characteristics needed for microcircuit substrates and display panel covers. Material batch certificates support traceability and meet demanding electronics industry cleanroom and purity origination mandates. Industry compliance standards
Typical usage ratio
Downstream process integration
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5. Flame Retardant Additives for Polymeric MaterialsIndustrial plastics compounds and composite panel producers incorporate boron oxide to enhance flame resistance and thermal stability. In synergy with other mineral additives, the oxide promotes glassy char formation and reduces flammability in electrical insulator and construction polymer grades. Our high-purity grades support regulatory compliance in building and transport sectors. Industry compliance standards
Typical usage ratio
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6. Sintered Refractories and High-Temperature CeramicsRefractory and kiln furniture manufacturers utilize boron oxide to tailor glass phase development, boost corrosion resistance, and reduce mullite formation temperatures in advanced ceramics. Consistent grain size distribution supports uniform densification during sintering, extending service life in high-wear and high-thermal load conditions such as steel or glass melting. Industry compliance standards
Typical usage ratio
Downstream process integration
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Competitive Boron Oxide prices that fit your budget—flexible terms and customized quotes for every order.
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Years of daily production, observation, and problem-solving inside our manufacturing floors have given our team an appreciation for boron oxide’s performance, quirks, and transformative value. Rather than relying on theory or sales brochures, we pay attention to how clients use our material in their plants and watch what happens during melting, blending, and compounding. We keep track of the mechanical strength achieved in glass, the viscosity changes in enamel, the fusing at precise temperatures in ceramics, and the consistency required for technical applications. Through deep involvement and listening, you learn where small differences make a big impact.
Boron oxide, often appearing as a white, glassy, hygroscopic substance, steps into critical roles where boron’s high reactivity, thermal stability, and solubility levels matter. We manufacture this material for industrial users who count on repeatable results–not just in the laboratory, but running at commercial scale. We understand that purity is more than a number: a few stray parts per million of unwanted metal or a poorly controlled loss on ignition can derail an entire batch, especially in high-end glasses, technical ceramics, or chemical syntheses.
Most of the world's boron oxide production comes from the direct oxidation of boron compounds under strictly controlled conditions. Our plant's output uses a continuous process to drive off volatile impurities and tune the final composition for different specifications. The material we supply commonly carries the model name B2O3 99.5, indicating a minimum Boron Oxide content of 99.5 percent by weight, checked by XRF analysis. We run regular lots between 99.5 and 99.95 percent, adjusting the production parameters to suit batch requirements from regular and specialty glass, advanced ceramic producers, and chemical processors.
In manufacturing, one cannot gloss over “assay” like a mere checkbox—tight purity controls mean less downstream cleaning, fewer rejects in fiber optics, and cleaner melts for specialty glass. The remaining fraction, made up of alkalis, heavy metals, silicates, and water, gets careful attention. Lower water content translates into better storage and less tendency for caking. We track this down to tenths of a percent, and keep finished product sealed to stop hydrolysis from the air. Only a plant that invests in humidity control, in-house packaging, and scheduled analysis can offer this.
Boron oxide finds its way into three ecosystems. First, glassmakers–especially for borosilicate and E-glass fibers–look for a boron source that increases the softening temperature while maintaining processability. Adding boron oxide controls viscosity, reduces chemical expansions, and improves resistance to shock and thermal cycling. With borosilicate glass, keeping the boron consistent between batches means fewer production halts, less stringiness, and more uniform optical performance.
For ceramics, particularly in glazes and frits, our product works as a network former. Feldspar can shift or leach, but B2O3 does not introduce sodium or potassium, sidestepping the usual sources of glaze crawling and hazing. In technical ceramics like boron carbide or magnesium borate, customers running kilns up to 1500°C count on a powder with a narrow particle size range. Our dry, stable powder resists compaction and flows easily during automated dosing, which is essential for avoiding blockages or erratic feed rates.
Chemical syntheses benefit from our boron oxide as a dehydrating agent and reactant. For borate esters, boron-containing catalysts, and advanced lithium-ion battery materials, the absence of excess silica, iron, or volatiles can shape the success or failure of each step. In fine chemical work, reactivity and downstream purity are determined by what, precisely, gets added from the very start.
Not all boron oxide is the same. Several global routes exist for boron oxide supply: direct calcination of boric acid, pyrolysis of boron-containing salts, or chemical reduction of boron ores. Impurities can vary sharply: calcined boric acid routes remain most controllable for low impurity levels, with fewer heavy metals and less residual sulfur. Ore-based or recycled material, suitable for low-value applications, often introduces transition metals, excess water, or silica, shifting the chemistry of high-spec blends.
Packaging may sound simple, but it creates real issues on arrival. Poorly sealed bags allow moisture to enter, creating caking that frustrates operators or leads to material loss. Our facilities store boron oxide in hermetic, multi-layered polyethylene-lined bags, heat-sealed at the loading point, so the powder remains crisp and free-flowing even after months of storage. Bulk users receive pre-weighed lots to speed up loading and tracking in the warehouse. Downstream users often report lesser product comes in clumped or with foreign debris. We review every shipment visually, reject out-of-spec lots, and work directly with end-users’ process engineers.
Other boron chemicals sometimes serve as boron oxide alternatives: boric acid and sodium tetraborate (borax) are the best-known. Boric acid offers workable water solubility but can introduce surplus water into heat-sensitive mixes, adding an avoidance challenge for rapid-melt applications. Borax brings in sodium, which can react unpredictably with other metal oxides and, in high-performance formulas, limits achievable reactivity. Our boron oxide, being anhydrous and almost sodium-free, becomes the material of choice when exact control over chemistry and thermal response is needed.
Some specialist users want the last few tenths of a percent in boron oxide. For optical glass and thin-film deposition, the smallest trace of transition metal can shift optical clarity or tint. Manufacturers of ceramic capacitors or boron-based superconductors have tested boron oxide from several sources; most favor manufacturers willing to provide real batch data and a proven record on shipment integrity.
In manufacturing, a product like boron oxide shifts hundreds of hands and touches dozens of production steps between raw material and a finished component. Each link counts. Over the years, our customers have come back with root-cause investigations pinpointing a trace impurity or inconsistency years later. We document every lot extensively: operator logs, process temperature profiles, and off-gas analysis form part of our process control. We are prepared to share these records, respecting proprietary confidentiality but ensuring our product can stand up to tough quality audits.
Our familiar clients–whether they run large-batch float glass or are scaling up battery research–trust us not only for spec sheets but also for direct technical support. We frequently dispatch process engineers to plants needing real-world guidance on melt rates, powder handling, or mixing times with their unique feedstocks. Through this feedback, we have altered everything from sieve sizing to inner-liner selection. A chain of support runs alongside every lot of boron oxide we send not as a branding exercise, but because buyers know every process break, contamination, or wasted man-hour cuts into the bottom line.
Producing boron oxide at scale means controlling not only chemistry but also physical form. Particle-size stability, bulk density, and pourability all affect downstream blending and dosing. Our facilities use rotary-drum coolers and inline sieves to standardize grain size, which helps with precise dosing in high-volume glass and ceramic lines. Consistent feed means fewer adjustments and less scrap.
No plant likes an unplanned halt. Moisture, clumping, or foreign particulate lead to downtime or expensive filter replacement. After several seasons managing warehouse inventory for major borosilicate glass producers, we have tuned our storage recommendations and quality monitoring. Our preferred clients work with regular, just-in-time shipments, which we pack in humidity-controlled environments, shrink-wrap on pallets, and deliver with traceable batch numbers.
Poor-quality boron oxide can cause downstream clogs, glass devitrification, weak spots in ceramic ware, or erratic reactions during chemical synthesis. These outcomes cost time, reputation, and profit. We invest in both the upstream mine and the final packing lines, closing gaps that too often let through trace lead, iron, or water that confound the careful formulations downstream. This dedication grew not from risk aversion, but from a genuine realization that end users depend on repeatability as much as on price.
From our vantage point, changes in demand, new environmental limits on glass or ceramic heavy metal content, and tighter industrial safety regulations put more pressure on upstream material quality. As supply chains grow leaner, our role shifts from simple supply toward partnership: providing deep technical records, stable supply history, and advice on regulatory compliance related to boron compounds.
Industry demand is evolving fast: thin, lightweight borosilicate glasses for electronics, specialized ceramics for high-temperature filtration, and growth in lithium battery supply chains all require more reliable boron oxide. At the same time, global logistics have grown unpredictable. Freight delays, rising costs, and customs slowdowns put a premium on domestic stock and short-lead resupply. Our focus on regional warehousing and flexible batch scheduling helps customers sidestep periodical shortages and conversion delays.
Waste management and environmental reporting are growing challenges throughout the value chain. As regulators push for lower emissions and chemical run-off, the chain of custody from mine to kiln draws more scrutiny. Impurities in boron oxide can accumulate in byproducts or influence the leachability of waste glass, frit, or slag. We support our clients by mapping the origins of our lots and working with waste solution engineers to minimize environmental and regulatory obstacles. It’s not only a matter of compliance: tighter purity results in less off-specification product, less waste to landfill, and more predictable secondary applications like fiber insulation or specialty fillers.
A persistent industry debate revolves around cost pressure versus quality. Large manufacturers of commodity borosilicate tend to push for lower-cost feedstock, while specialty glass and ceramic users demand extra assurances of purity and consistency. We balance these requests, running dedicated production lines with differentiated QA protocols, offering both value and ultra-pure lines where needed. By integrating customer feedback into our process controls, we avoid the race-to-the-bottom that erases the performance gains only a tighter-controlled boron oxide can provide.
Sustainability remains an emerging concern. Our own plant recovers and recycles off-gas and rejects, reducing waste and operating cost. Energy savings translate into less CO2 footprint for end users. Every ton of high-purity boron oxide that enables more durable glass, lighter weight products, or longer-lasting ceramic coatings gets counted as a lifecycle positive in modern sustainability audits. By sharing batch data, supporting closed-loop systems, and running pilot trials with our key customers, we move the entire supply chain closer to carbon-reduction goals.
Manufacturing boron oxide is about more than recipe following. It’s about integrating raw material sourcing (high-purity boric acid procurement), maintaining direct control over process parameters (kiln temperature, residence time, airflow rates), and delivering physical material tailored for practical industrial realities. New applications–thin-film photovoltaics, medical glass, technical ceramics for electronics–demand ever tighter tolerances. We are not removed from these changes. Our pilot plants test new forms, new particle size distributions, and new packaging, informed by field experience and customer feedback.
For specialty users, we offer closer technical collaboration, including tailor-made blending and on-site problem-solving. Some end users struggle with batch-to-batch variation costing them hours in process tweaks. Steady material from us, with full traceability from mine to bag, saves time and boosts output. Whenever possible, we reduce unnecessary intermediaries. We work directly with technical staff, QA managers, and procurement, delivering actionable answers to both routine supply and sudden troubleshooting.
Glass fiber manufacturers, coating chemists, and battery materials engineers who make specification changes mid-process learn the value of close supplier relationship. Whenever demand surges, prompt discussion helps us shift production to meet deadline demands. On the rare occasion something doesn’t meet stated expectation, we run internal audits, issue corrective actions, and track outcomes. Our goal has always been to deliver not only the right product, but to make the experience frictionless and direct.
Through rigorous manufacturing, unwavering quality checks, and responsive engineering support, we take genuine pride in contributing real value to each batch of boron-based product downstream. We don’t operate as a distant supplier. We remain involved and proactive, following how our boron oxide performs in end-use glass, ceramics, or high-tech processes. Our years of experience in controlling trace impurities, perfecting particle characteristics, and managing logistics form the backbone behind every shipment that leaves our gates.
For engineers, purchasing managers, and plant operators, consistent performance matters most. They benefit when boron oxide quality means fewer production stops, less drift in batch results, and smoother regulatory approvals. With strong supplier-manufacturer communication, technical advisement, and streamlining of the supply path, we support not just the current generation of boron oxide use, but also help lay the foundations for new technologies now under development.
Across all markets—glass, ceramics, chemicals—investing in stable, high-quality boron oxide production means fewer process failures, faster product development, and improved environmental performance. We invite dialog, open feedback, and real-world testing, keeping quality where it belongs: at the core of every process that makes use of boron's unique potential.