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All Right Reserved
|
HS Code |
189422 |
| Chemicalformula | ZnO |
| Molarmass | 81.38 g/mol |
| Appearance | White powder |
| Meltingpoint | 1975°C |
| Solubilityinwater | Insoluble |
| Density | 5.606 g/cm³ |
| Phvalue | About 7-8 (in aqueous suspension) |
| Particlesize | Variable, typically 0.1–10 µm |
| Purity | Usually 98-99.5% for industrial grade |
| Casnumber | 1314-13-2 |
| Odor | Odorless |
| Refractiveindex | 2.008 |
As an accredited Zinc Oxide(Industrial Grade) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Zinc Oxide (Industrial Grade) is packaged in 25 kg net weight, sealed, woven polypropylene bags with inner polyethylene lining for moisture protection. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Zinc Oxide (Industrial Grade): 20 metric tons packed in 800 bags, each 25 kg, on wooden pallets. |
| Shipping | Zinc Oxide (Industrial Grade) is typically shipped in 25 kg or 50 kg woven bags with inner plastic lining, ensuring product integrity and safety. For bulk orders, it may be transported in jumbo bags or fiber drums. The material should be stored in a cool, dry, well-ventilated area away from incompatible substances. |
| Storage | Zinc Oxide (Industrial Grade) 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 protected from physical damage. Store in labeled containers and avoid sources of ignition. Proper storage ensures product stability, prevents contamination, and maintains safety in the working environment. |
| Shelf Life | Zinc Oxide (Industrial Grade) typically has a shelf life of 2 years when stored in a cool, dry, and sealed container. |
Competitive Zinc Oxide(Industrial Grade) prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@liwei-chem.com.
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Tel: +8615365186327
Email: sales3@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
As a chemical manufacturer, we handle zinc oxide each day — packed, checked, and shipped from our plant. Industrial grade zinc oxide gives a different experience from feed, food, or pharma grades. This zinc oxide often appears as a white, powdery solid and holds a reliable profile for both quality and cost. The process, from mining zinc ores to purifying and oxidizing the metal, brings out a material that fits the needs of tire factories, ceramics producers, paint mixers, and more. Its purity typically lands at or above 99.5% ZnO for our main grades. Familiar hexagonal grains, high brightness, and precise particle size allow batch consistency you can rely on. Few additives and tight process controls support a batch-to-batch sameness that's essential on a production floor.
We mark our main industrial grade as Model A—99.5% ZnO, standard fines, moisture below 0.3%. There’s a second, Active Grade, made for customers needing extra surface area for vulcanization in rubber. Finer particle options—for the tire and cable industries, for instance—run down to 0.2 micron d50 with mean surface area above 4 m2/g. These differences don't just sit on paper. Tire factories have come to us for our ability to tune reactivity by controlling crystal growth and calcination time. If a paint blender calls for brighter white, we keep iron and manganese below 20 ppm. Ceramics lines need purity, but accept larger grains for pressing into tiles. Rather than touting a ‘one-size-fits-all’ boast, every grade suits a clear purpose.
Few industrial chemicals serve such a spread of downstream uses. Our zinc oxide heads into vulcanized rubber production, acting as both a heat conductor and curing activator. In the rubber industry, which accounts for well over half the total zinc oxide use worldwide, tire and conveyor belt makers depend on prompt delivery and predictable quality. We see large-mesh grades favored for ceramics—glazes, frits, and enamels. Glass-makers use the oxide to adjust melting points and promote clarity. Oil paint makers want a high degree of whiteness, low hydration, and small crystal clusters. Zinc oxide is indispensable in the creation of ferrites for electronics and plays a part in water treatment as a flocculant. Feed and food processors would never accept our industrial batch—strict impurity limits and packaging protocols separate their grades from ours.
Iron, lead, cadmium, and manganese—these impurities, left over from ore or process, matter more than paperwork might suggest. Tire compounders have watched color shift or cure rates lag from high iron. Our routine distillation and calcination, guided by decades of chemical know-how, makes sure heavy metals stay far below the 0.005% mark. We routinely test production streams—using XRF and wet-chemistry—to prevent costly product recalls on the customer end. Customers with phosphate, epoxy, or ceramic lines often request full impurity panels because even tiny contamination can ruin a week’s worth of raw material. By keeping trace metals low, we also help customers meet tough global chemical legislation: China’s GB, Europe’s REACH, and US TSCA.
With zinc oxide, powder properties lead to very real impacts on a finished product. Particle size influences how easily the powder disperses in rubber or paint. Our default Model A falls between 0.7-2.0 microns d50, but we tune the mill for superfine batches on request. Surface area clocks in between 3 and 5 m2/g for most runs. Remaining moisture in the powder can spell trouble for slurry-based processes: we maintain water content below 0.3%, using batch dryers with constant monitoring. Clumping and caking lead to headaches and lost time, so bulk packaging lines run nitrogen purges and salt desiccants for sensitive batches. We incorporate anti-caking agents on demand—but avoid them unless stability is truly required, keeping our 'default' product free from unnecessary additives.
End-use shapes the definition of quality. Industrial grade zinc oxide differs from pharmaceutical and food grades in all the ways that matter: trace metal limits, microbiology, and packaging. Pharma-grade zinc oxide often hits 99.7% purity, but the more important difference lies in lead, arsenic, and cadmium, which must stay below parts-per-million threshold unique to Western and Asian markets. Our industrial batches stay far below regulatory maximums, but don’t reach those trace limits—nor is there any food-safe packaging. Routine customers from pigment, ceramics, and tire sectors do not ask for—and do not pay for—the microbial control, ultra-low lead, or special audits required for feed or pharma grades. By focusing on industrial applications, we match price and performance to the daily reality of batch reactors and compounding lines.
No industry likes surprises in raw material. Too many times, a sharp price cut in zinc or a switch in ore source leads to variance in finished product. Industrial buyers know the risks; we learned long ago that changing a kiln temperature by even 20°C might build more unwanted hexagonal crystals, throwing off performance. Each year brings demand for ever-finer, brighter, and cleaner powder—sometimes outpacing available process controls. Large chemical plants, especially new-builds, push for cheaper sourcing and automated handling. That means every upstream step—from ore crushing to oxidation to packaging—has to stay tight or risk loss down the line. Storage also brings challenges: zinc oxide absorbs moisture from air, and not all warehouses maintain ideal conditions. Manufacturers who overlook caking, contamination, or particle growth in storage find themselves stuck with unworkable powder. Customers have told us thick, caked, or yellow-brownish powder has blocked their feeders or caused visible defects in finished goods.
Heavy metal limits shape every batch we send out. Tire and cable makers who export to Europe or Japan face stricter scrutiny on lead, cadmium, and arsenic. We rely on careful sourcing of zinc metal and closed-loop processing to keep these trace elements in check. Electrolytic zinc routes give lower residuals than older pyrometallurgical processes. Our tests show consistent lead levels less than 2 ppm, well below many national standards, without resorting to expensive purification steps used for pharma zinc oxide. We document impurity data with every lot, and customers request extra documentation to pass customs in importing countries. Tougher rules over time have made everyone in the supply chain pay more attention—and invest in better monitoring.
Industrial zinc oxide powder comes with its quirks. The best results in rubber mixing come from careful dust control and staged addition—dumping a 25 kg sack all at once might create air pockets and poor dispersion. Slurry systems, common in ceramics and pigment lines, benefit by pre-wetting with controlled stirring, minimizing clumping. We’ve learned the hard way not to skip filter and dryer maintenance, as filter bags clog quick with fine zinc oxide and bring dust safely back into enclosed systems. Disposal and reuse carry their own challenges: zinc oxide spill or scrap, especially from older houses, can carry enough heavy metals to require specialized waste permits. We supply customers with handling data and support their audits as rules change city by city.
World zinc prices move fast, and global zinc oxide supply swings with them. As raw metal costs rise, so do inquiries about alternative sources and cheaper grades. Some clients experiment with recycled zinc—or blends with secondary metal sources—but consistently see lower whiteness and more unpredictable impurity signatures compared to our fresh oxide. At times, supply chain disruptions have forced unplanned changes: a major mining strike or natural disaster can ripple all the way from ore source to tire plant. Long-term contracts and transparent lead time management help both sides. Reliability in production, open communications on batch issues, and ability to store safety stocks set apart a trusted manufacturer from opportunistic traders.
Zinc oxide’s unique properties—white color, basicity, and amphoteric nature—give it versatility across industries, outperforming zinc sulfate or carbonate in most filler and pigment roles. While zinc sulfate finds use as a trace nutrient and zinc carbonate fits some specialty ceramics, neither produces the whiteness or UV stability of the oxide. Oxide’s stability in polymer matrices and its reactivity with sulfur set it apart in tire and belt sectors. We’ve tried alternatives, seeing issues with reactivity, opacity, or unwanted side reactions. Paint makers rely on zinc oxide’s opacity and mold resistance. Substitutes lack this mix of opacity, safety, and cost effectiveness.
No two industries treat zinc oxide exactly alike, and every demand brings feedback. Tire compounds push for purity, small grain size, and stable color over big volumes; their production cycles demand prompt delivery of truckloads each month, whether the world price rises or not. Ceramics works prefer coarser batches but put a premium on low volatile content. Paint industry clients keep an eagle eye on whiteness and anti-yellowing properties, especially for architectural batches. Most customers send samples for qualification, test bake dozens of lots, and demand process transparency—no surprise changes or refinements springing up mid-year. We invest in quality control stations, not because a certificate looks good, but to avoid lost batches, off-colors, or slow production that costs everyone money.
Industrial zinc oxide is often delivered in bulk bags, 25 kg sacks, or even custom-lined drums for sensitive applications. We use airtight liners where requested, knowing that a humid warehouse can take a bright white powder to off-color in weeks. Labels track batch, impurity panels, and manufacturing dates. Painfully, we have seen the issues that come from reusing packaging or delaying shipment: moisture creep, accidental cross-contamination, or powder breakdown. Keeping a clear paper trail and open logs helps our customers spot issues before they disrupt a production run. Timely, accurate shipping matters as much as the powder itself.
As a manufacturer, we find that what stands out over years isn’t always the hard numbers, but the ability to solve customers’ process problems. Offering steady quality over hundreds of containers and being able to trace each lot back to its batch lets us answer tough questions in audits and recalls. We keep detailed logs on ores, process conditions, and finished goods, knowing that customers might come back months down the line to analyze a single off-spec lot. Regular customer visits and interactive feedback help us tune grades to fit ever-changing market needs. Years of customer visits, external audits, and open batch sampling underpin the trust we hold with our partners.
Industrial zinc oxide won’t sit still. With new environmental limits, new tire, paint, and ceramic blends call for grades with finer crystals yet fewer impurities. Nano-grades and specialty surface treatments grow more popular—though they bring handling and safety hurdles that demand new strategies. Changes in zinc ore quality, especially as high-grade mines grow scarce, push more reliance on recycling and tight process control. Scaling up while keeping contamination down remains a balancing act. Industrial buyers ask for more: data, batch history, and assurances on everything from UV stability to waste handling. The job means staying ahead of these trends, and sharing the story behind every bag that leaves our dock.
As those who mine, process, and pack zinc oxide every day, we define industrial grade by what leaves our filters and runs through our hands. A good batch doesn’t just test well in the lab: it pours smooth, disperses into latex or pigment slurries, and stands up to the real-world tests from batch mixing to product aging. Feedback from tire and ceramic plants shapes every change. By controlling sourcing, process, and quality at every step, we deliver a product that does its job with transparency and consistency. It's chemistry, logistics, local regulation, and years of problem solving—all in every sack.
