Yudu County, Ganzhou, Jiangxi, China sales3@liwei-chem.com 748718781@qq.com
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Diatomaceous Earth

    • Product Name Diatomaceous Earth
    • Chemical Name (IUPAC) Silicon dioxide
    • CAS No. 61790-53-2
    • Chemical Formula SiO₂
    • Form/Physical State Powder/Solid
    • Factory Site Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry sales3@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    411511

    Chemical Formula SiO2
    Appearance white to off-white powder
    Main Component fossilized diatom remains
    Particle Size typically 10-200 micrometers
    Density about 2.2 g/cm3
    Solubility In Water insoluble
    Ph neutral to slightly alkaline
    Melting Point 1710°C
    Hardness Mohs about 1-1.5
    Odor odorless
    Thermal Conductivity low
    Absorbency high
    Color Variation ranges from white, yellow to gray
    Toxicity low (food-grade), higher if inhaled as dust
    Flash Point non-flammable

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

    Packing & Storage
    Packing A 5 kg white plastic bag labeled "Diatomaceous Earth," features safety instructions, product details, and a resealable closure for convenience.
    Container Loading (20′ FCL) Container Loading (20′ FCL): Diatomaceous Earth is packed in 25kg bags, palletized or loose, totaling approximately 18-20 metric tons per container.
    Shipping Diatomaceous Earth is generally shipped in sealed, moisture-proof bags or drums to prevent contamination and maintain product integrity. It is classified as a non-hazardous material but should be handled to minimize dust generation. Proper labeling and transport according to local regulations ensure safe, efficient delivery. Store in a cool, dry place.
    Storage Diatomaceous Earth should be stored in a cool, dry, well-ventilated area away from moisture, as it is prone to clumping when wet. Keep it in a tightly sealed container to prevent contamination and dust dispersion. Avoid storing near food and drink. Ensure the storage area is labeled, and limit exposure to direct sunlight and extreme temperatures.
    Shelf Life Diatomaceous Earth has an indefinite shelf life if stored in a cool, dry place, away from moisture and contaminants.
    Free Quote

    Competitive Diatomaceous Earth 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.

    We will respond to you as soon as possible.

    Tel: +8615365186327

    Email: sales3@liwei-chem.com

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    Certification & Compliance
    More Introduction

    Diatomaceous Earth: The Maker’s Perspective

    A Straightforward Introduction

    Years of working hands-on with filtration, agriculture, and industrial minerals have taught us the difference a raw material can make on a production line or in the field. Diatomaceous earth stays close to our story as a manufacturer — not just as a commodity we supply, but as a material we shape, dry, grind, and test for demanding applications. Our commitment runs deep. We source directly from mines we know by heart, running operations with a focus on quality control from the start of extraction through to final delivery. For us, diatomaceous earth is more than a powder; it’s a trusted tool crafted from fossilized remains of single-celled algae called diatoms, forming deposits with unique properties.

    From Mine to Mill: How We Make It Right

    The first thing to understand about diatomaceous earth is that no two deposits look the same. Some yield soft, high-silica material suited for food and beverage filtration; others contain more clay and show better performance as industrial absorbents. Every batch starts with careful site selection and raw material evaluation. Once extracted, the screening, drying, and milling cycles become crucial. We adjust particle size through mechanical processes to meet spec — sometimes a fine powder for fillers, sometimes a coarser grit for filtration aid. Rigorous physical testing runs alongside these steps. Moisture content, bulk density, and granule size uniformity are tested in our on-site laboratories, because inconsistent quality leads to lost time for customers. At each stage, staff with decades in this trade keep watch for off-color, excess moisture, or impurities. The human factor remains essential; no automated sensor replaces the trained eye or the years spent gauging earth between our fingers.

    Our Models: Direct from the Source

    We offer several grades of diatomaceous earth under a straightforward naming convention. Our DE-100 series features a fine, white powder, targeted at producers in the food and beverage sector. These grades pass through specialized screens and are calcined at controlled temperatures, yielding a highly porous structure. That structure sets up effective filtration of wines, beers, syrups, and sugar solutions. The DE-200 series, a coarser stock, suits industrial absorbents, spill control, and low-pressure pool filtration. Contractors prefer these grades for ease of spreading and quick sweep-up. Our DE-300 grade contains higher clay fractions, a favorite among potting soil manufacturers, because it improves water retention and aeration for plant roots. None of these models come off-the-shelf from a distribution warehouse. For every order, our team can customize cuts and blends from primary production, giving end-users predictable results batch after batch.

    Why Manufacturers Prefer Purpose-Made Diatomaceous Earth

    It’s easy to treat diatomaceous earth like a common mineral, bundled and sold in nondescript bags. As a producer, that doesn’t sit right with us. Real process improvements start at the source. Filtration plant operators, for example, want clean, efficient flow rates and consistent cake permeability. Beverage bottlers need assurances that diatomaceous earth won’t introduce off-tastes or residues, and food makers expect material that meets safety and purity tests. We’ve seen countless operations switch from generic stock to our platform-specific grades and immediately see measurable improvements: shorter filtration cycles, less product loss, fewer equipment clogs. On the spill management side, shop supervisors tell us the difference between using a precisely classified DE absorbent and cheaper alternatives is like cleaning up two different messes. A well-graded, low-dust product works faster and sweeps easier, helping maintain safer, tidier floors in the busiest plants.

    Digging Deeper: Key Properties and Their Value

    The structure of fossilized diatoms gives this material its edge. Each particle shows a labyrinth of tiny pores, maximizing surface area for both filtration and adsorption tasks. That’s not just marketing language—the difference lies in measured surface area per gram, which we confirm by BET testing in our lab. High-grade calcined diatomaceous earth consistently shows upwards of 20 m2/g of surface area. Porosity influences liquid-holding behavior for spill absorption or soil mixes. For feed supplement applications, it’s the low heavy metal profile and chemical inertness that matter most. We maintain those standards by controlling input mine sites and by batch analyzing for soluble iron, aluminum, lead, and arsenic. Our investment in process separation results in DE that qualifies for food contact, sometimes even for direct mixing into animal feed or as an anti-caking agent in grain storage operations.

    Comparing Diatomaceous Earth With Other Materials

    For decades, manufacturers in filtration, filler, or absorbent markets have compared diatomaceous earth with perlite, silica sand, and clay. On the filter aid front, perlite and cellulose are often mentioned, but diatomaceous earth delivers sharper throughput coupled with finer particulate trapping. This capability traces to the “cake” that forms on filter media. Diatomaceous earth creates a more stable and efficient cake with lower flow resistance at comparable dosages. In spill control, clay absorbents become saturated and slick with oil, while our DE grades maintain grip and have higher absorption per unit mass, which translates into faster removal and lower cleanup cost on busy shop floors. In horticultural settings, growers often add perlite or vermiculite, but these lack the micro-pore structure and mineral content of quality diatomaceous earth—important for both soil aeration and moisture regulation.

    Practical Uses Across Key Industries

    Diatomaceous earth has its roots in natural mineralogy, but modern processing has opened up new uses. Beverage plants filter the haze out of juices and beers with specialized DE. The food sector employs it to clarify cooking oils and filter syrups, trusting its food-grade certification and batch-traceability back to source materials. Chemical companies harness its filtering power for solvents and acids that can’t touch organic media. Paint, adhesives, and polymer plants leverage its fine particle size for thickening and matting without clouding. Animal feed vendors add low-dose blends to reduce clumping and caking, after passing our raw DE through rigorous screening to exclude unwanted minerals. Environmental contractors count on our absorbent grades to soak up oil and chemical spills, relying on our particle classification to get maximum absorption in a single pass. Pool supply houses depend on our neutral-pH DE for clear, sparkling water, because low-metal content prevents leaching and staining of delicate pool light fixtures and tilework.

    Safety and Regulatory Aspects

    As a manufacturer, product safety comes first. Every grade leaves our plant accompanied by current SDS documentation, with crystalline silica content clearly labeled. We don’t cut corners with dust control measures in both the workplace and final packaging. Many of our clients work in food or pharmaceutical environments, so we furnish confirmation of compliance with current food-grade and EPA standards where required, and we routinely test for heavy metals and insoluble silicates. For agricultural users, we follow the National Organic Program’s guidelines, and clients can ask for batch certification when purchasing for certified organic production. We ship with full lot traceability, allowing audits from end-users or government authorities at any point, all the way back to individual mine sites. We take pride in this level of transparency because it’s the clearest demonstration of what separates a real manufacturer from the world of anonymous suppliers.

    Problem-Solving on the Production Floor

    Problems always arise for manufacturers running demanding processes, and diatomaceous earth often solves work-stopping bottlenecks. A brewery might face clogged filter plates or inconsistent throughput. We work alongside their process engineers, adjusting mesh size and bulk density in the DE until the filter beds run smoothly cycle after cycle. In the old days, bakery and grain processing plants constantly fought against spoilage in silo bins. By supplying a low-dust, food-grade DE for anti-caking, we’ve helped keep grain flowing freely while reducing mold or pest risk. Wastewater plants once struggled with high-solids sludge; we introduced a customized absorbent grade with a high-permeability fraction, allowing cakes to dewater faster and cut landfill transport costs. Every application requires working shoulder-to-shoulder with real plant operators, not just pushing bags via middlemen. Our teams regularly review trials, collect performance data, and remix material grades based on what frontline users report. This deep loop of feedback — direct from user to material handler to mine — is the engine behind worthwhile innovation.

    Case Studies From the Field

    Over the decades, we’ve had the privilege to work with engineering teams at breweries, commercial greenhouses, and metalworking facilities, all seeking solutions they couldn’t find from wholesalers or catalog suppliers. Take the example of a regional brewing plant. Their existing filtration runs slowed down after switching to lower-cost DE, which, though fine enough, packed too tightly over multiple cycles. Replacing it with our higher-purity, custom-screened product yielded a consistent improvement in filter throughput and flavor profile—confirmed by both the QC lab and customer feedback. In large greenhouse operations, the regular struggle with root disease forced a rethink of their soil blend. Our calcium-enriched DE grade improved drainage and root oxygenation, doubling seedling survival rates compared with pure perlite additives. In a metal stamping plant, the switch from a basic clay absorbent to a tightly graded, low-dust DE absorbent cut clean-up time in half. Workers reported less slipping, and maintenance recorded fewer lost-time incidents from slippery shop conditions. These field results shape our future product design and reinforce the importance of a maker’s touch every step of the way.

    Environmental Responsibility and Resource Management

    Direct involvement at the mine and plant level brings responsibilities. We’re not removed from the land that produces diatomaceous earth. That places stewardship at the core of ongoing operations. We practice selective extraction, avoiding over-stripping or resource waste. Our production sites work under monitoring and restoration agreements. At the processing facility, water and dust emissions are captured and minimized through filter units and wet suppression, with spent water recycled for dust control or site remediation. Byproducts are sent for safe disposal or used to improve soil on local farming plots. As end-users increasingly require sustainable sourcing, we supply chain-of-custody documentation, and we host regular environmental audits by third parties. Adopting these practices isn’t an afterthought—it’s how we ensure the material our customers depend on will remain available for the next generation, preserving both the natural and business environment around us.

    Innovations and Future Directions

    Manufacturing remains a process of constant learning. Years ago, most customers used diatomaceous earth for basic filtration and spill cleanup. Today, larger segments turn to us for advanced applications—ultrafine grades for specialty coatings, microencapsulation support for chemical processors, and lightweight fillers for low-emission building materials. Each step forward in processing line automation, material separation, and post-treatment opens up new markets and demands. To stay ahead, our R&D team collaborates with universities and industry partners to push material performance. Trials are ongoing for ultralow crystalline silica DE, designed for the highest purity food and pharma settings. We’re advancing blended media that combine DE with activated carbon or mineral oxides to capture both particulates and dissolved organics in fluid streams.

    On the packaging front, we’ve moved away from old-style paper sacks to resistant, easy-handling bulk bags, and even directly loaded containers—a nod to modern supply chain realities. Tanker loads filled straight from processing eliminate contamination risks and speed up site deliveries. Our tech support crew takes pride in dropping in at customer plants, helping set up feed systems, and training staff for safe and efficient use. Every improvement boils down to one thing: a factory-focused approach, driven by decades of experience and an unbroken link from earth to end-user.

    Trust Built on Direct Experience

    After years operating from quarry face to finished bag, we know what’s at stake for users of diatomaceous earth. Each shipment represents hours of hands-on labor, rounds of physical and chemical testing, and the knowledge that quality today builds customer trust tomorrow. Distributors may offer lower pricing, but without control over extraction, production, and application support, the risk of downtime or contamination multiplies. We welcome clients to trace our products from mine site to process floor and to visit our facilities for open demonstration. Our staff remains on call for troubleshooting, custom grading, or just to walk the line with your engineers and operators. From filtration and spill cleanup to horticulture, feed, and industry, we produce diatomaceous earth not as a generic mineral, but as a vital enabler shaped by manufacturing experience, stewardship, and a relentless drive for improvement. Every bag, tote, and truckload reflects that commitment—the true difference real production delivers.