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HS Code |
382555 |
| Chemical Name | Sodium Nitrite |
| Chemical Formula | NaNO2 |
| Molar Mass | 68.995 g/mol |
| Appearance | White to slightly yellowish crystalline solid |
| Density | 2.17 g/cm³ |
| Melting Point | 271°C |
| Boiling Point | 320°C (decomposes) |
| Solubility In Water | 82 g/100 mL at 20°C |
| Odor | Odorless |
| Cas Number | 7632-00-0 |
| Ph | 8-9 (solution) |
| Flammability | Non-flammable |
| Toxicity | Toxic if ingested |
As an accredited Sodium Nitrite factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Sodium Nitrite is packaged in a 25 kg white HDPE drum with a secure lid, hazard labels, and clear chemical identification. |
| Container Loading (20′ FCL) | Sodium Nitrite is loaded in 25kg bags, secured on pallets, totaling approximately 20 to 25 metric tons per 20′ FCL container. |
| Shipping | Sodium nitrite should be shipped as a hazardous material, according to relevant regulations (such as DOT or IMDG). It must be packed in tightly-sealed containers, kept away from sources of heat, ignition, and incompatible materials. Clearly label packages with appropriate hazard warnings. Handle with care to prevent leaks or accidental release during transport. |
| Storage | Sodium Nitrite should be stored in a tightly sealed container, away from moisture, heat, and direct sunlight. Keep it in a cool, dry, well-ventilated area, separate from acids, reducing agents, combustibles, and organic materials. Label containers clearly, and ensure storage areas are equipped with appropriate spill response materials and safety equipment. Restrict access to authorized, trained personnel only. |
| Shelf Life | Sodium nitrite typically has a shelf life of 2-3 years when stored in a cool, dry, and tightly sealed container. |
Applications of Sodium Nitrite in Industrial ManufacturingSodium nitrite supports several core industries as a regulated functional material. Our manufacturing process controls purity, granulation, and anti-caking properties, ensuring consistent integration into downstream applications. Each sector below implements their own specific standards, usage protocols, and end product requirements. 1. Corrosion Inhibitors for Industrial Cooling Water TreatmentMany industrial facilities add sodium nitrite directly to closed-loop cooling and heating systems to control corrosion rates in steel pipelines and heat exchangers. Its nitrite ion reacts with steel surfaces, forming a passive oxide film that slows metal loss even under high temperatures or recirculating water conditions. The balance of nitrite and other inhibitors such as sodium molybdate or borates is crucial to system longevity and regulatory compliance. Control systems monitor dosing to prevent excess nitrite migration or microbiological instability, meeting industry and environmental standards throughout continuous plant operations. Industry compliance standards
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2. Nitrosating Agent in Organic Synthesis and Chemical IntermediatesChemical manufacturers use sodium nitrite as a primary nitrosating agent to produce diazonium salts, aryl nitroso compounds, and other intermediates for dyes, pigments, agrochemicals, and pharmaceuticals. Controlled acidification of an aromatic amine in the presence of sodium nitrite enables clean diazotization with high selectivity and reproducibility. Process technicians carefully manage stoichiometry, temperature, and pH to maximize target molecule purity and yield while minimizing side-products. Waste streams and residual nitrite levels undergo strict monitoring and neutralization treatment in accordance with current environmental and process safety regulations. Industry compliance standards
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3. Food Grade Curing Accelerator in Meat ProcessingSodium nitrite plays a regulated functional role in processed meat manufacturing as an antioxidant and curing accelerator. Our food grade meets internationally recognized purity and particle size criteria, preventing blockages in fine dosing equipment. Processors control application through brine injection, direct addition, or dry curing blends. The functional benefit includes microbial risk control, development of characteristic cured color, and flavor stabilization. All use occurs strictly under the permitted maximum limits, with batch tracking, dosing automation, and residual nitrite testing as core food safety controls. We supply documentation for traceability from raw material to finished product shipment to meet major regulatory audits. Industry compliance standards
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4. Pharmaceutical API and Intermediate SynthesisPharmaceutical producers rely on sodium nitrite for critical transformations during synthesis of certain APIs and regulated intermediates. Its proven stability and reactivity in controlled environments supports diazotization, nitrosation, and reduction reactions under cGMP guidelines. Strict documentation of grade, residue analysis, and absence of cross-contaminants accompanies every shipment. Operators configure addition based on validated formulas and risk assessments, and quality control teams document analytical results for each campaign. Effluent and impurity management follow registered processes, ensuring regulatory and customer audit readiness. Industry compliance standards
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5. Surface Treatment and Metal FinishingMetal finishing operations introduce sodium nitrite as a controlled oxidizer in pickling inhibitors, phosphating baths, and black oxide processes. Its function balances metal dissolution and passivation, limiting pitting while enhancing the final protective layer. In ferrous metal phosphating, sodium nitrite activates steel prior to formation of phosphate coatings, improving paint bond strength and corrosion resistance. Accurate concentration control and bath maintenance, coupled with frequent analytical checks, support compliance with regional waste and product quality regulations. Industry compliance standards
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Competitive Sodium Nitrite prices that fit your budget—flexible terms and customized quotes for every order.
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Sodium nitrite stands as one of those dependable compounds that has found a firm place in both industry and daily life. Our teams have worked with sodium nitrite for years, guiding it from raw inputs to reliable, high-purity chemical. This experience, on our own production floor and in customer feedback from the people who use it every day, helps shape our thinking about why sodium nitrite matters and how to keep quality and safety at the center of everything we do.
The sodium nitrite coming out of our plants typically hits purity grades greater than 99%. We produce it mostly in powdered or fine granular form, depending on customer demand. Color matters, too—clear, white crystals mean no obvious impurities, but that’s not the whole picture for us. Years ago, we moved to even tighter controls on feedstock and filtration simply because we wanted fewer headaches downstream, both for our team and our users. Specific grades, like industrial and food additive, get kept separate throughout handling, storage, and transport. No cross-contamination allowed. Our sodium nitrite lines come from well-controlled reaction conditions, and we test batch by batch for nitrite content, moisture, insolubles, and trace metals. If it doesn't meet our standards, it doesn't leave the facility.
Our customers span some very different industries, but most say something similar—the thing they care most about is steady product consistency. After so many years making and using sodium nitrite, it’s easy to see why. If you’re working in meat processing, a shift in nitrite concentration can throw off curing rates or end up causing noncompliance with food regulations. If you’re working at a chemical synthesis plant, contaminants can disrupt reaction yield or quality. In metal finishing and treatment, too much moisture or sodium nitrate left in the product leads to unstable results or excess corrosion. Steady product means fewer worries and fewer surprises.
Sodium nitrite’s most familiar use is in food preservation, protecting meats during processing and storage. The right amount in brines or curing salt keeps bacteria like Clostridium botulinum from growing, while also giving characteristic color and flavor. From the manufacturing side, we see a clear split between food-grade and technical material—not just on paper, but in how we handle, test, and document every container. For food-grade, we regularly exceed local and international residue-theory standards to reduce any concern over impurities like lead, arsenic, or mercury. Over the years, food safety authorities have asked for tighter tolerances. We see that as a positive, since more rigorous plant controls tend to benefit all our customers—whether they’re making sausages or chemical reagents.
Outside food and beverage, sodium nitrite works as a corrosion inhibitor for closed water systems and as a component for diazotization in organic synthesis. We’ve seen use spikes during busy seasons for antifreeze producers and dye companies. Each application depends on the stability of the sodium nitrite in storage and the reliability of supply. Strong demand from construction and infrastructure sometimes pushes up against food industry seasonality, requiring us to plan and allocate more tightly. Timing matters, as holidays can align with meat processing demand, followed quickly by municipal water treatment needs. Our team has adapted bulk packaging and order flexibility to match these cycles without letting quality slip.
An obvious question comes to us from both new and long-time customers: why choose sodium nitrite instead of alternatives like sodium nitrate, potassium nitrite, or even modern curing agents? For all their similarities, the small differences between these chemicals matter. Sodium nitrite delivers faster nitrosation reactions at lower temperatures compared to sodium nitrate, since nitrate first needs enzyme-driven conversion. If someone uses sodium nitrate instead of sodium nitrite in a product expecting quick results—think brined hams or rapid-curing meat—problems show up right away. Higher bacterial risk, uneven color, or late spoilage can result. We’re regularly approached for advice on shifting between nitrite and nitrate, especially after regulatory changes. The transition isn’t as simple as a 1:1 swap, so our technical support team often partners with processing engineers or lab staff to dial in proper dosages, blending ratios, and testing methods. Sometimes, customers find they need improved pH control or modified atmosphere packaging to use one over the other safely.
Potassium nitrite plays a similar role but has its own quirks—higher costs, greater solubility, and different taste impacts, especially in food applications. In chemical manufacturing, sodium nitrite boasts superior reactivity in many diazotization reactions (preparation of dyes and intermediates), giving predictable yields at common batch temperatures. We’re cautious about cross-substitution due to toxicity levels. Customers with end products that touch food, drinking water, or pharmaceuticals rightly have stricter controls, and our documentation and support reflect that difference.
No matter where sodium nitrite goes, consistent product testing and tracked batch histories form the backbone of our quality promise. We don’t take shortcuts on testing for heavy metals, nitrate byproducts, or moisture, since missed contaminants often lead to process disruptions or product recalls for our clients. Sometimes, we’ve gone through weeks of extra documentation or voluntary plant audits just to support a customer certification—or because we’re developing a new grade that needs to meet even more demanding criteria. In other words, meaningful quality doesn’t happen at the warehouse or outbound dock; it starts when we’re choosing source materials and running production tanks. Over the years, we’ve upgraded equipment for better metering, filtration, and automated drying, which resulted in measurable reductions in reject rates. Fielding fewer complaints on shipment inspection reports gives us confidence that we’re investing effort where it pays off—on the production floor, not just in paperwork.
Our older labs now run alongside newer, in-line automated monitoring systems, providing real-time insight into each batch. This hybrid approach means experienced technicians can catch issues that algorithms might miss. Many of our raw material handlers and quality techs have been on the job more than a decade, and their knowledge of what should (and shouldn’t) happen gives us a safety net. For customers who want full traceability, we provide batch documentation detailing input lots, process parameters, and test outcomes. This transparency makes audits, site visits, or customer QA reviews much smoother.
People working around sodium nitrite learn quickly that a little care goes a long way. Unlike some of the more hazardous chemicals in our inventory, sodium nitrite has moderate toxicity—enough that mishandling can pose respiratory and ingestion risks. So our shop floor routines, PPE standards, and emergency plans reflect real-world learning from production and past incident reviews. Our teams drill on spill containment and clean-up. We provide extra signage and color-coded containers, particularly in areas where operator handoff might occur outside of daytime shifts. This reduces the chance of mistaken use or accidental exposure.
Over time, concerns about ground water and wastewater contamination have gained attention. Our plant upgrades include closed-loop water and improved air handling, along with neutralization steps for all waste streams containing sodium nitrite residues. We collaborate with local waste authorities as regulations evolve, aiming for tighter discharge levels. This mostly means stricter monitoring, faster leak detection, and better onsite chemical storage. Some customers have moved to zero-discharge systems, and we’ve watched their experience to help us improve our own environmental record. We have established a regular review for our solid waste contractors, requiring them to document that they’re handling residual sodium nitrite safely all the way to disposal or recycling.
Making sodium nitrite isn’t just about chemistry and process control. It also means running a careful supply chain to ensure customers get product right when they need it. Our key raw materials—mostly sodium nitrate and reducing agents—can see price and availability swings. We keep close relationships with upstream chemical plants, reserving inventory in advance and qualifying secondary vendors against our standards. Transportation is a focus area, since sodium nitrite is a regulated material. We’ve been through enough transport inspections and regulatory updates to know: each jurisdiction takes a slightly different approach to hazardous chemical shipments. We work closely with shippers to ensure compliance paperwork and safe handling during both road and rail transit. Whenever changes come down from transport authorities—things like new labeling rules, documentation shifts, or altered class/category assignments—we meet with both drivers and logistics coordinators to review updates and avoid last-minute delivery headaches.
On the regulatory front, we’ve learned that updates rarely happen all at once. Instead, a handful of regions may make early adjustments to allowable uses or environmental thresholds, and the rest follow gradually. We monitor food and chemical safety authorities, both domestic and international, for announcements. For example, some countries now restrict sodium nitrite use in non-food products. This affects where and how we move stock, and what documentation we provide in advance to regulatory agencies. We make a point to meet with regulators when compliance challenges arise, since back-and-forth communication keeps projects moving instead of stuck in limbo. Occasionally, we’ve stopped or recalled product before it reaches a customer, simply because compliance conditions changed on short notice. We want our customers to trust that if a change is coming, we’ll tell them before it affects operations.
Every regular customer needs sodium nitrite for a different reason, from consistent brining times in meat processing, to reliable color formation in specialty textiles, to assured protection against pipeline corrosion. Our technical service group often hears from customers facing new efficiency or sustainability demands from their own buyers. Sometimes, it’s a push for lower impurity thresholds in food; other times, it’s driving out residual sodium nitrate content for certain water treatment contracts. Our response depends on what they’re after—in some cases, it’s shifting to a tighter screening protocol, and in others, it means changing packaging sizes or logistics support to minimize handling risk. Some buyers have asked for returnable, closed-package solutions to control exposure, which we’ve piloted in strong partnership with downstream users.
Developing solutions goes beyond our own factory walls. We often cooperate with customers’ process engineers, troubleshooters, and plant operators to dial in right-size product highly suited to their process steps. Taking the challenge of nitrite residue in wastewater, for example, we worked directly with a group of municipal suppliers to help adapt dosing strategies and tank storage conditions, nearly cutting their discharge to a fraction of the previous year’s figures. Our lab team has also worked on batch-to-batch color stability for food producers, recommending handling improvements that reduced complaints and rejected lots. For those making chemicals, our support extends to helping qualify our product in their new synthetic routes, reviewing lab conditions, and tracking product through pilot to full scale.
We view the manufacturing and distribution of sodium nitrite as an ongoing learning process. Our collective experience—spanning decades from both our operators and our technical staff—means we see more than just a formula. We see how product performance in one user’s line can highlight improvements for another customer halfway around the world. The team relies on user feedback and on-the-ground challenges to shape how we innovate both the product and its support systems. Whether it’s shifting feedstock quality, transportation pressures, or tightening environmental laws, we stay ready to adapt and act based on experience, not just targets. That’s our responsibility to our customers and end users who must trust our material in every batch, every day.
Even with routine production and robust controls, we devote energy to understanding the wider impact of sodium nitrite. Perceptions of chemical safety in society run high. Education—both for our plant workers and our customer base—remains a top priority. We offer training for users on safe storage and correct disposal. Regular tours with students and regulators in our plant strengthen public trust and help demystify what we do. As even stricter safety rules and environmental limits approach, particularly in the regions most concerned with water quality and food residues, we’re upgrading controls and refining operations to stay well ahead of requirements.
The future holds both promise and challenge for sodium nitrite, in all of its uses. With closer scrutiny from food agencies, a growing focus on sustainable manufacturing, and the need for reliable supply, we stay committed to improving every step—production, packaging, delivery, and education. Our journey is far from complete, and we learn each day by listening to those who depend on us. Making sodium nitrite isn’t just a business. It’s a commitment to safety, reliability, and partnership—qualities that serve everyone down the supply chain, from factory floor to finished products in homes and industries around the world.
