| HS Code | 851810 |
| Chemical Name | Calcium Chloride Anhydrous Granular |
| Chemical Formula | CaCl2 |
| Appearance | White granular solid |
| Purity | Typically ≥ 94% |
| Molecular Weight | 110.98 g/mol |
| Solubility In Water | Highly soluble |
| Melting Point | 772°C |
| Density | 2.15 g/cm³ |
| Odor | Odorless |
| Hygroscopic | Strongly hygroscopic |
| Grade | Technical/Industrial |
| Storage Conditions | Keep tightly closed and dry |
| Cas Number | 10043-52-4 |
As an accredited Calcium Chloride Anhydrous Granular factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | White, moisture-proof polyethylene bag labeled "Calcium Chloride Anhydrous Granular, 25 kg," with hazard symbols and handling instructions printed clearly. |
| Shipping | Calcium Chloride Anhydrous Granular is shipped in high-density polyethylene bags or drums, typically lined with an inner plastic liner to prevent moisture absorption. Containers are securely sealed and labeled according to regulatory standards. Transport is conducted in dry, cool conditions, ensuring the chemical remains free-flowing and uncontaminated during transit. |
| Storage | Calcium Chloride Anhydrous Granular should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from moisture and incompatible materials such as strong acids. Protect from humidity to prevent clumping or degradation. Store away from food and beverages, and label clearly. Use corrosion-resistant containers to avoid chemical reactions with packaging materials. |
We supply high-purity Calcium Chloride Anhydrous Granular specifically formulated for demanding industrial processes. Our manufacturing controls enable stable quality and compliance with end-user sector requirements. The following sections outline genuine downstream application scenarios with technical dosage, process, and quality information relevant to manufacturers and global B2B users.
Major operators in mining and heavy civil engineering employ Calcium Chloride Anhydrous Granular as an effective hygroscopic agent in dust suppression systems. The granules hydrate rapidly upon contact with moisture, binding fine particles and preventing airborne dust generation on unpaved roads, haul routes, and aggregate yards. As an industry producer, we align particle size and purity to end-user dosing systems for graded application, supporting both temporary and continuous treatments in harsh operating conditions where environmental protections mandate active dust management.
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Global manufacturers of drying and air dehydration equipment utilize Calcium Chloride Anhydrous Granular for moisture removal in packaging, compressed air, and process gas systems. The granules absorb atmospheric water vapor efficiently, ensuring equipment, piping, and critical control spaces remain dry to protect sensitive instruments and prevent corrosion. Granule size selection and purity from our production line match the specific fill and recharge requirements of desiccant towers, cartridge canisters, and sealed containers used across electronics, pharmaceuticals, and petrochemical processing.
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We supply drilling fluid compounders and oilfield service companies with Calcium Chloride Anhydrous Granular used for brine preparation in well drilling, completion, and workover operations. The material achieves precise control of brine density and ionic balance, supporting shale stabilization and hydration control under high downhole pressure and temperature. Performance specifications address solubility and chloride ion content required for demanding offshore and land-based drilling, ensuring long-term product stability for fluid recycling and regulatory disposal.
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Cement and precast manufacturers add Calcium Chloride Anhydrous Granular directly to concrete and mortar formulations to accelerate setting and improve early strength development. Compliance with regional admixture regulations guides the maximum allowed dosing, especially in reinforced concrete. The granules dissolve rapidly in batch mixers or delivery hoppers, lowering setting time in cold weather and increasing site efficiency for structural elements, pavement, and precast panels.
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Manufacturers of winter ice melt products use our anhydrous granules for blending high-activity deicing formulations used by municipalities, transportation agencies, and airports. Controlled particle size and minimized impurities support predictable melting rates and environmental release properties. Blenders produce bulk and packaged melt products by integrating Calcium Chloride Granular with sodium chloride, sand, or proprietary eco-additives. The high exothermic dissolution lowers ice refreezing risk in severe climates, critical for surface safety and regulatory compliance.
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Food-grade processing and packaging plants deploy specialized grades of Calcium Chloride Anhydrous Granular as desiccants and shelf-life stabilizers in non-direct contact applications. Our production lines operate under FSSC 22000 and HACCP, meeting food industry traceability and allergen control expectations. The material appears in humidity control inserts and dehumidification columns for dairy powder, spice, and bakery storage, helping regulate packaging headspace or warehouse climate. Final formulations never include direct addition into food under current regulations.
Industry compliance standards
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Competitive Calcium Chloride Anhydrous Granular prices that fit your budget—flexible terms and customized quotes for every order.
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Working day in and day out with Calcium Chloride Anhydrous Granular has shaped our understanding of what makes this material essential in so many processes. The granules look simple, but they have a story that runs right through the core of construction, refrigeration, road maintenance, oilfield operations, and chemical manufacturing. Every batch we produce carries a traceable record of attention and quality, reflecting our commitment to both performance and consistency.
Calcium Chloride with the anhydrous designation means there is no water of crystallization present; the result is a dry, deeply hygroscopic, free-flowing granular product. The word “granular” signals a difference in particle size and physical form from flakes, pellets, or powders. Each granule runs from about 2.0mm to 4.75mm, tight enough to minimize fines and dust, yet large enough to spread easily and dissolve steadily.
Our main production line focuses on 94%-97% purity for the granular grade. Lower moisture levels mean these granules often pull moisture out of the air at a faster rate than less pure or hydrated forms. That hygroscopic nature is precisely what industries count on—whether it’s speeding up drying, binding dust, or lowering the freezing point in solutions.
Every calcium chloride plant faces its own challenges. Through years of experience, we have seen how the dehydration step affects granule firmness and sizing. Too rapid a heat ramp, and the product becomes brittle or dusty. Too gentle, and efficiency drops, energy costs climb, and throughput slows dramatically. Over time, fine-tuning the fluid bed dryer, monitoring residence time, and sticking with reliable granulation equipment have proven to be the best safeguards for quality.
End-users in the field often seek out the granular form because it’s easier to apply, requires less cleanup, and dissolves with fewer clumps. We take pride in keeping each lot within its specified range of impurities, particularly with respect to sodium and magnesium content, since even small variations can affect the results for processes like brine preparation or desiccation.
In concrete acceleration, granular calcium chloride acts fast. Batch plant operators rely on quick solubility and strong moisture-absorbing action to kickstart the hydration of cement. Flakes or pellets can work, but they often have a broader range in particle sizes, which means uneven dissolution. Our granular grade, with its predictable size, allows for controlled dosing that leads to more uniform setting times across large pours.
When it comes to drying gases or liquids, the ability of anhydrous calcium chloride to draw in water makes it a go-to desiccant. Food processing plants and refrigeration systems, in particular, insist on a high-purity, low-dust grade to avoid contamination or the clogging of desiccant beds. In those environments, anhydrous granules maintain performance longer than hydrated or less pure alternatives.
In road work, especially during dust suppression or ice control, we’ve watched maintenance crews choose granular over powdered or flake forms for both efficiency and safety. The heavier, denser granules reduce airborne particulates and track less, lowering the clean-up required in sensitive or high-traffic areas. Compared to pellet or flake, you get a steadier migration of ions, which translates to longer-lasting effects when melting ice or holding down dust.
In hydraulic fracturing and oilfield drilling, brines with controlled calcium chloride concentrations maintain wellbore integrity and balance formation pressures. Drilling contractors appreciate granular material because it stores better, is less prone to caking, and dissolves smoothly even in bulk mix tanks. Less downtime from clogged pumps means the whole operation keeps moving.
Powdered calcium chloride has its place in formulations or precise chemical syntheses. It presents challenges in handling—too fine, and you risk excessive dusting, inhalation hazards, and rapid caking. It’s also harder to meter in the field. Pellets, on the other hand, often dissolve too slowly and may contain additives that don’t suit all applications.
Flake calcium chloride is a flexible middle-ground choice. Some industries lean toward flakes for surface treatments or rapid brine make-up, where super-fast dissolution is less critical or fines are easy to manage. Our customers in road maintenance routinely say that granular form saves time—not only during spreading but also later, when it’s time to clean equipment.
Hydrated versions, such as dihydrate or hexahydrate, hold significant water within their structure. While useful for some applications, they simply lack the concentration and drying power of the anhydrous granular product. Users pay for the extra weight and bulk, making shipping and storage less efficient.
Anyone who’s worked with bulk powdered materials can attest to the challenges of airborne dust. One slip in a poorly ventilated mixing area, and it’s a cleanup headache—not to mention a potential safety hazard. Granular forms minimize dust. That matters in confined environments or when operators are loading and dosing by hand or open auger.
Granular calcium chloride comes with its own set of handling rules. Its easy flow characteristics mean storage bins rarely clog or bridge, and consistent particle size means improved accuracy when using mechanical feed systems. That’s a real productivity benefit during long production runs, especially in weather-sensitive operations where delays cost more than lost time—they can mean a failed batch.
We stress that while calcium chloride in this form doesn't present the same dramatic reaction with water as quicklime or concentrated acids, careless spills or splashes with water can generate enough heat to hurt. On the plant floor, proper gloves and goggles aren’t optional, regardless of how manageable the granules seem.
Raw material inputs play an oversized role in the calcium chloride business. Years of running quality checks show that the wrong grade of limestone or hydrochloric acid will put you on the backfoot, fast. Trace metal content and insolubles can creep up outside target levels long before there’s a visible problem on the product line. That’s why every good batch of anhydrous granular calcium chloride starts with disciplined sourcing and in-process checks.
The test that customers care about most is moisture content. Too high, and granules start to cake—especially after just a short period exposed to humid air. Too low, and the product may turn brittle, leading to fines during handling. Our QA team invests a big chunk of every shift into weight loss on drying tests, particle size distribution runs, and handheld moisture checks to stay ahead of defects.
Even after production, transportation adds new variables. Dry bulk shipments can react to atmospheric moisture or vibration during long hauls, changing the granulation or caking behavior. Using lined containers and moisture-proof covers on super sacs helps preserve the free-flowing nature. In our view, this kind of hands-on attention beats relying on simple compliance with shipping standards.
A lot has changed in attitudes toward environmental impact. Our plant’s wastewater and emissions monitoring have sharpened dramatically in the past decade, driven by both regulations and concern among factory staff and nearby communities. Calcium chloride is less hazardous than many industrial chemicals, but it can pose a risk to freshwater aquatic environments if mishandled. We’ve moved toward closed-loop water use, dust extraction equipment, and covered storage to curb any accidental releases.
Every drum, bag, and bulk load carries clear use directions, not just to meet labeling requirements, but because real-world misuse can mean runoff into waterways. As manufacturers, we carry the responsibility to educate wholesalers, contractors, and even end-users about best practices for storage and disposal. We frequently field calls about how to handle product that has caked, been exposed to rain, or gone beyond ordinary shelf life. Our typical advice runs simple: keep it dry, handle spills with care, sweep up for salvage or safe disposal, and consult local rules before releasing wash water.
Zero-waste manufacturing still sits on the horizon for much of the industry. Until then, practical steps like recycling wash-downs, using spent product in road applications rather than disposal, and minimizing raw material wastage keep both costs and environmental footprints down. We’re always seeking smarter ways, and often our best ideas have come from operators and crew, not just the management office.
Ten years ago, demand spikes followed weather patterns: a cold snap, an icy stretch, or an extended drought would double or triple our orders overnight. We’ve seen a shift toward smarter procurement, with contractors seeking to keep buffer stocks and diversify supply chains to avoid mid-season shortages. The granular form performs well under these conditions, storing seasonally longer than flake or bulk powder without caking up.
End users expect traceability and transparency. More customers now ask for technical data sheets, actual COAs, and detailed batch records—not only to satisfy auditors, but to reassure onsite safety teams. We’ve adapted by updating processes to allow quick access to batch info and to provide rapid QA responses when users encounter field performance issues or unexpected results.
Repeated supply chain interruptions—think global port slowdowns, raw chemical shortages, and freight bottlenecks—push everyone in the value chain to look for materials that will keep performance steady even under tough logistics. Granular calcium chloride travels well, resists caking abuse, and maintains its benefits across transit delays and climate variation.
Routine conversations with our industrial clients shed new light on subtle product differences. A road maintenance supervisor recently described how the uniformity of our granular grade meant less labor spent on recalibrating spreaders after a wet season. In large scale food processing, plant engineers have described the savings from less filter maintenance and improved brine clarity over a busy production month.
In the oilfield, drilling fluid managers repeatedly report satisfaction with the granule’s resistance to compaction, reducing wasted product during storage and lowering the risk of plugging transfer valves. Their feedback pushes us to maintain particle size standards and to stay responsive with technical solutions when field conditions shift.
Our customer service team has logged numerous calls and site visits, sometimes troubleshooting issues as simple as product exposure to rain during a delivery hiccup, or as complex as build-up in desiccant columns leading to downtime. Addressing practical needs—faster flow rates, less dust, or easier storage—has helped our granular calcium chloride shape a reputation for reliability where it counts: in work crews’ everyday experience.
Even though the fundamental chemistry of calcium chloride anhydrous hasn’t shifted, there’s still room for innovation in production. We are testing process tweaks aimed at boosting energy efficiency, such as optimized dryer reuse of residual heat streams. Advancements in automated screening equipment have reduced particle variability, leading to even steadier performance for downstream users.
We’re also supporting tighter supply chain integration for key customers, so they get fresher product and timely deliveries. Increasingly, technical support includes not just on-call troubleshooting, but site training for warehouse and plant teams on safe handling, best storage practices, and application methods tailored for site-specific challenges.
The ongoing push for sustainability means we continue to seek lower-impact packaging options and track our carbon emissions—not only because regulators are watching, but because we see smart stewardship as part of long-term partnership with clients and neighbors.
Calcium chloride is never going to be glamorous, but its performance touches everything from safe roadways to stable tunnels and smooth-flowing food processes. The granular anhydrous form stands at the intersection of operational efficiency and practicality—easy to handle, reliable in the field, and rich in functional value, without the mess or headaches of dust-prone powders or sticky hydrated forms.
We return, time and again, to the basics: steady quality, honest information, and shared lessons from long shifts and tough projects. That approach—sometimes hard-won through error and adjustment—delivers more than just product. It builds trust with contractors, operators, and everyone who relies on that next clean, dry, free-flowing bag or tote. In our business, that’s where the real value of granular calcium chloride anhydrous reveals itself, job after job, year after year.
