Calcium Nitrite

    • Product Name:Calcium Nitrite
    • Chemical Name (IUPAC):Calcium dinitrite
    • CAS No.:13780-06-8
    • Chemical Formula:Ca(NO2)2
    • Form/Physical State:Solid
    • Factroy Site:No.3369 Bohai 10th Road,Lingang Economic Zone,Binhai New Area,Tianjin City,China
    • Price Inquiry:sales2@liwei-chem.com
    • Manufacturer:Tianjin Soda Plant
    • CONTACT NOW
    Specifications

    HS Code

    783030

    Chemical NameCalcium Nitrite
    Chemical FormulaCa(NO2)2
    Molar Mass132.09 g/mol
    AppearanceWhite to pale yellow crystalline solid
    Solubility In WaterVery soluble
    Density2.26 g/cm³
    Melting Point390°C (decomposes)
    OdorOdorless
    Cas Number13780-06-8
    Main UsesCorrosion inhibitor in concrete,antifreeze agent,fertilizer

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

    Packing &Storage
    PackingThe packaging for Calcium Nitrite features a sturdy 25 kg white plastic bag,clearly labeled with product name,purity,and safety warnings.
    Container Loading (20′ FCL)Container Loading (20′ FCL) for Calcium Nitrite:Packs 27 metric tons in 1,080 bags (25kg each) per 20-foot full container load.
    ShippingCalcium Nitrite should be shipped in tightly sealed,corrosion-resistant containers,protected from moisture and incompatible materials. It is usually transported as a solid or aqueous solution,classified as a hazardous material (UN 1454). Handle with care,following regulatory guidelines,and avoid contact with combustible substances and strong acids during transit.
    StorageCalcium nitrite should be stored in a cool,dry,and well-ventilated area,away from heat,moisture,and incompatible substances such as acids and reducing agents. The container must be tightly sealed and clearly labeled to prevent contamination. Keep it away from flammable materials,and use corrosion-resistant containers to avoid reactions. Regularly inspect storage areas for leaks or spills.
    Shelf LifeCalcium Nitrite typically has a shelf life of 6 to 12 months if stored in a cool,dry,and well-sealed container.
    Application of Calcium Nitrite

    Purity 98%:Calcium Nitrite with 98% purity is used in high-strength concrete admixtures,where it accelerates setting time and enhances early compressive strength.

    Particle Size 100 mesh:Calcium Nitrite with 100 mesh particle size is used in ready-mix mortar production,where it ensures uniform dispersion and consistent anti-corrosion performance.

    Aqueous Solution 45%:Calcium Nitrite as a 45% aqueous solution is used in precast concrete segments,where it provides rapid corrosion inhibition for embedded steel rebar.

    Stability Temperature 200°C:Calcium Nitrite with a stability temperature of 200°C is used in oil well cementing operations,where it maintains performance under elevated thermal conditions.

    Molecular Weight 132.09 g/mol:Calcium Nitrite with molecular weight 132.09 g/mol is used in civil engineering repair grouts,where it facilitates precise dosage calculations and predictable inhibitor action.

    Low Chloride Content <0.05%:Calcium Nitrite with low chloride content below 0.05% is used in reinforcement protection coatings,where it minimizes the risk of additional chloride-induced corrosion.

    Fine Powder Form:Calcium Nitrite in fine powder form is used in dry-mix shotcrete systems,where it improves solubility and rapid application efficacy.

    Melting Point 390°C:Calcium Nitrite with a melting point of 390°C is used in specialty thermal insulation concrete,where it remains chemically stable during extreme heat cycles.

    Bulk Density 1.6 g/cm³:Calcium Nitrite with bulk density 1.6 g/cm³ is used in large-scale infrastructure concrete projects,where it allows accurate volumetric batching and storage.

    Solubility 1200 g/L (at 20°C):Calcium Nitrite with solubility of 1200 g/L at 20°C is used in automated dosing systems for concrete plants,where it ensures fast and complete dissolution during admixture preparation.

    Free Quote

    Competitive Calcium Nitrite prices that fit your budget—flexible terms and customized quotes for every order.

    For samples,pricing,or more information,please contact us at +8615380400285or mail to sales2@liwei-chem.com.

    We will respond to you as soon as possible.

    Tel:+8615380400285

    Email:sales2@liwei-chem.com

    Get Free Quote of Tianjin Soda Plant

    Flexible payment,competitive price,premium service - Inquire now!

    Certification &Compliance
    More Introduction

    Introducing Calcium Nitrite:Chemistry with Practical Purpose

    At our plant,production never stops. We know every tonne matters out here because our customers stake their work on the basics:clean chemistry,consistent performance,no surprises in the bag. Calcium nitrite is one of those products—the kind with a purpose that speaks for itself in every slab,beam,and poured foundation it helps protect. The model we've perfected, CA-NiT33, carries our reputation in every pellet and prill. It's more than a label. It stands for long hours spent fine-tuning purity and process so you get a reliable,workable material every delivery.

    Practical Experience in Every Batch

    On our floor,every step counts. Raw materials get sourced with a sharp eye—high-grade calcium sources,dependable nitric process lines. After years in this business,we've learned shortcuts don't pay off. Quality control hits every shipment:assay tests for nitrite and moisture,checks for foreign ions,flow checks under humidity. You need powder that pours when you open the sack,not chunks. Most customers rely on our 33% nitrite content form. We understand why:it offers the optimal ratio for concrete admixtures,enough water solubility to mix fast,but solid enough for safe storage in both harsh winter and humid summer months.

    What Sets Calcium Nitrite Apart in the Additive World

    We manufacture calcium nitrite for a practical reason—nobody wants rust in the rebar. Once corrosion starts,the game changes for every structure. Unlike sodium nitrite,which may seem a cheaper fix,calcium nitrite behaves already in tune with the concrete’s chemistry. It doesn’t trigger alkali-silica reactions like sodium-based offerings—less headache with aggregate selection or cement compatibility. Sodium nitrite's lower price tag can tempt, but it brings sodium ions into the concrete, chipping away at durability down the line. Calcium nitrite, on the other hand, helps bind chloride ions that cause rebar corrosion. We see these differences firsthand when our technical support team walks construction sites after a major winter storm—the mix holds up, the steel stays protected. Customers tell us that’s the peace of mind they paid for.

    The way calcium nitrite works isn’t theoretical. It’s chemistry that faces rain, salt, thaw, and time. As water seeps into concrete, dissolved chlorides can reach the steel. Once they do, corrosion follows. Our product interrupts this process. Calcium nitrite acts as an anodic inhibitor, meaning it lets a stable passive film form around the steel, blocking corrosive ions. We back up our process with visits to old bridges and tunnels, sometimes decades after build. If the core samples from those structures come up clean, we know our product did its job.

    Specifications and Real-World Results

    Customers who visit our site ask about specifications right away. The numbers matter, and we keep them clear: Nitrite nitrogen content sits between 19.0% and 20.0%. That equates to about 33% active calcium nitrite, not just filler. Moisture content never exceeds 2%, so the product flows smoothly. The particle size passes easily through a standard 20-mesh screen, so there’s no risk of undissolved grains wrecking a mix. If a blizzard hits the mixing station, storage remains stable, with minimal caking even in open sites where covering isn’t always perfect. Every batch earns its certificate – we don't seal the bag until it passes. High-purity counts here;stray sodium,potassium,or magnesium ions can trigger setting problems or weaken the final structure. We keep those contaminants far below typical industry thresholds,not because a customer demands it,but because we’ve seen what happens with sloppy chemistry.

    Usage:From Mixing Truck to Tunnel Wall

    Most customers use our calcium nitrite as a corrosion-inhibiting admixture in reinforced concrete. But over the decades,we’ve seen it used in sleeves and grout for pre-stressing wires,sprayed mortars in subway tunnels,and even as a stop-gap for emergency bridge patching. Bulk buyers often go through dozens of metric tons per major bridge or parking deck,not a few kilograms. In batching,the dosage usually lands between 1.5% and 3% by cement weight,but engineers tweak the rate based on local chloride concentrations—something that rises every year with road salt,seawater exposure,or recycled aggregates. We work with them to dial it in right. Too much,and you speed up cement hydration and risk early set;too little,you don’t get the protection you’re paying for. We’ve spent years in contact with sites across climates—from the humid,salt-soaked coasts to dry,high-altitude regions where freeze-thaw cycles test every chemical additive. Our product doesn’t shy from either scenario.

    For field engineers,a material’s reputation travels quick. They’ll know if a lot blends slow,leaves stubborn lumps,or settles out of solution. We avoid that problem with strictly controlled crystallization and storage protocols. In the real world,nobody gets time for a remix when trucks are queued up and weather’s closing in. Reliable mixability makes our calcium nitrite a go-to—it dissolves fast,disperses clean,doesn’t slip out of the solution once mixed. Crews finish on time,and the results show up years later when bridge columns stay sharp and free of rust streaks.

    Differences From Other Products:Cleaner Chemistry,Safer Structures

    Competitors sometimes push blended products—sodium nitrite mixed with calcium nitrate,or other formulations promising lower cost per kilo. We’ve run those blends side-by-side against pure calcium nitrite in our own labs. The result?Blended products often dilute performance. Sodium doesn’t just add to basicity,it can set up long term durability issues around expansion or delayed ettringite formation. Calcium nitrate,for its part,can alter setting times dramatically. Our product avoids the unpredictable shrinkage,expansion,or efflorescence that comes with more reactive or impure options. We use primary calcium nitrite salt,not recycled or fertilizer-grade intermediates.

    After years supplying both large infrastructure projects and smaller ready-mix stations,we’ve built feedback from every angle. Contractors see the effects once slabs meet the first wet winter. Engineers call with questions after evaluating chloride penetration tests. What comes across time and again:pure calcium nitrite offers protection that outlasts the warranty period. Big projects can’t gamble on cheaper,inconsistent blends. Every construction team has stories about what happens when the wrong admixture or a poorly understood import batch goes into the mix. Failures cost lives and dollars. In our corner,each truckload draws from over two decades of focused production,not just a sales contract or a spec sheet.

    Safety,Handling,and Worker Experience

    Our team believes safety starts in the packaging bay,not just the safety data sheet. We run fine-dust containment and vented filling to keep exposure low. Workers handling our calcium nitrite get training in proper use—nitrates demand respect,but real trouble often comes from carelessness,not the core chemistry. The product doesn’t fume or self-react,so open-air storage works for most of our partners. We avoid oversized drums or super-sacks unless a site can unload them safely,since lost time from poor packaging can delay projects. Compared to some nitrogen-based chemicals,calcium nitrite holds up remarkably well in variable weather. Truckloads heading across long distances see little clumping,no separation,no off-odors. This matters when every delay means concrete left to set in the drum,or workers waiting on missed deliveries. We cut problems by providing clear storage instructions and batch traceability,so even if a problem does come up,it can be traced,explained,and fixed within hours,not weeks.

    Commitment to Responsible Manufacturing

    Over the years,regulations on effluents and environmental exposure have tightened—rightly so. Our plant captures and recycles nitric off-gas,scrubs final washes,and neutralizes nitrate-containing waste streams before discharge. Local agricultural sites once raised concern over runoff. Our response was simple:invest in better containment,and add real-time monitoring,not just sporadic audits. Calcium nitrite presents less risk for groundwater movement compared to highly soluble sodium salts,and we work with local agencies to keep impact minimal. Regular internal reviews keep us aware of every step,from sourcing through waste handling. We publish our lab testing,not as a marketing boast,but as proof for regulators and neighbors who live near our facility. And for every new hire,environmental training is not an afterthought,but built into their core onboarding. Responsible chemistry isn’t a slogan—it's an everyday practice, baked into how we run production.

    Why Calcium Nitrite Matters on the Job

    In concrete chemistry, talk follows results. Calcium nitrite’s main value shows up less in lab printouts, and more in a thirty-year-old overpass still carrying traffic, or in a basement wall that’s stayed dry where others spring leaks. Out on site, it’s the difference between patching rusted rebars every few years, or moving on to new projects because the old ones hold up. Our support teams work alongside engineers during early project planning, figuring loading rates and compatibility with local aggregates. In renovation projects, calcium nitrite often becomes a key part of repair mortars, extending life for rebar reaching the end of its design capacity. Asset owners see value in extending maintenance intervals, reducing labor and material costs over decades, not just the first handover day.

    We track the changing landscape—more recycled aggregates, new blended cements, demand for higher early strength. Our calcium nitrite doesn’t just fit these trends, it’s often the cornerstone that lets customers experiment without risking long-term performance. Knowing your product lasts matters when workers, planners, and the public all depend on the work standing firm.

    Real-World Challenges and How We Meet Them

    Nothing in industrial manufacturing stands still. Raw material costs shift, shipping snarls up, labor shortages hit plants. We’ve learned to keep a buffer on critical stocks, train backup teams on every line, and communicate early if supply will tighten. On occasion, we’ll take a temporary hit to keep fast-track projects moving. Plant outages due to power failures or maintenance never catch us flat-footed because we’d rather run a smaller line than roll out an unreliable batch. In the rare case that a load fails spec, we’d rather eat the loss and run a new batch than let a questionable product taint years of trust.

    Sometimes, customers ask about “green” or “sustainable” options. We look for process improvements that cut waste and power use, redesign packaging for lower shipping footprint, and partner on recycling options for bulk bags. Industry-wide, expectations rise for transparency and stewardship. Our approach—share the numbers, open the factory for auditing, and partner with universities to validate product impacts over a project’s lifespan. Calcium nitrite fits well in sustainability frameworks because it extends asset life and reduces the need for new concrete, which is itself a major energy and carbon input.

    Supporting Innovations Without Compromise

    Project teams, architects, and researchers continue to push performance boundaries. They want concrete that handles ultra-high strength, resists seismic cracks, or incorporates unconventional aggregates. We work with partners to test dosing, solubility, and interactions with supplementary cementitious materials. Our calcium nitrite has completed thorough comparative screening alongside emerging anti-corrosion admixtures, including organic and hybrid types. Still, performance and reliability continue keeping calcium nitrite at the top of the field. Our ongoing R&D explores even higher-purity processing and granulation modifications that could further boost concrete workability and ultimate strength—but we never change a method or formula without field validation. Customers build more than structures with their purchase; they build communities, connections, and the groundwork for the next generation’s safety. We don’t cut corners on that responsibility.

    Shared Success Stories from the Ground Up

    Years of supplying tunnel, bridge, high-rise, and industrial plants have brought us shared victories—and sometimes, lessons. One recent cold-weather pour in a coastal region put our calcium nitrite to the test. The contractor faced high winds, tidewater spray, and 12-hour mixing windows. By keeping dosing precise and adjusting the mix on the fly, the team delivered a finished deck with no cold joints or accelerator-induced shrinkage. Months later, site reviews and core samples showed chloride diffusion rates well below their threshold. The asset owner called to thank our technical support engineer—those are moments that make the years spent in product development worth it.

    Every batch that leaves our gates joins projects big and small, usually out of sight but crucial every day. Our commitment remains focused: deliver chemistry that helps engineers, laborers, and owners rest easier, knowing their reinforced concrete stands a better chance against water, salt, and rust. Calcium nitrite isn’t just a chemical. It’s how we turn decades of technical know-how, customer partnership, and daily quality into real-world results that stand up over time. In a business where every shortcut can appear years down the road as extra cost and risk, we build our reputation batch by batch, standing behind every kilogram and every answer we give. Calcium nitrite continues to prove its worth—not just as a product, but as a true partner in making the built world stronger, safer, and ready for what tomorrow brings.