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HS Code |
118262 |
| Chemical Name | Sodium Hypochlorite |
| Chemical Formula | NaOCl |
| Molar Mass | 74.44 g/mol |
| Appearance | Greenish-yellow liquid |
| Odor | Chlorine-like |
| Density | 1.11 g/cm3 (5-6% solution) |
| Melting Point | -6 °C (15% solution) |
| Boiling Point | Decomposes before boiling |
| Solubility In Water | Highly soluble |
| Ph Value | 10.8 - 12.8 (solution) |
| Stability | Decomposes in sunlight and heat |
| Common Uses | Disinfectant, bleaching agent, water treatment |
| Toxicity | Irritant, harmful if swallowed |
| Flammability | Non-flammable |
| Storage Requirements | Store in cool, well-ventilated area |
As an accredited Sodium Hypochlorite factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The chemical Sodium Hypochlorite is packaged in a sturdy 5-liter opaque plastic container with a secure screw cap and hazard labels. |
| Container Loading (20′ FCL) | Sodium Hypochlorite is loaded in 20′ FCLs using high-density plastic drums or IBC tanks, securely palletized and container-sealed. |
| Shipping | Sodium Hypochlorite should be shipped in tightly sealed, corrosion-resistant containers, protected from heat and direct sunlight. It is classified as a hazardous material (UN 1791). Avoid contact with acids, organic materials, and combustibles. Ensure containers are upright, securely packaged, and labeled according to regulations for safe transport and handling. |
| Storage | Sodium hypochlorite should be stored in a cool, well-ventilated area away from direct sunlight, heat, acids, and combustible materials. Use corrosion-resistant containers, such as those made of PVC or polyethylene. Ensure containers are tightly sealed and labeled. Prevent contact with organic materials and metals to avoid hazardous reactions. Store away from incompatible chemicals to minimize risk. |
| Shelf Life | Sodium hypochlorite typically has a shelf life of 6-12 months, degrading faster when exposed to heat, light, or air. |
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Purity 12%: Sodium Hypochlorite with purity 12% is used in municipal water disinfection, where it ensures effective microbial control and compliance with drinking water standards. Stability pH 11: Sodium Hypochlorite with stability at pH 11 is used in hospital surface sanitation, where it maintains active chlorine concentration for prolonged bactericidal performance. Active Chlorine Content 8 g/L: Sodium Hypochlorite with active chlorine content 8 g/L is used in laundry bleaching processes, where it delivers rapid stain removal and brightening of fabrics. Density 1.2 g/cm³: Sodium Hypochlorite with density 1.2 g/cm³ is used in paper pulp bleaching, where it enables efficient lignin breakdown and uniform pulp whitening. Storage Temperature 25°C max: Sodium Hypochlorite with storage temperature 25°C max is used in swimming pool maintenance, where it retains oxidizing strength and prevents degradation during seasonal use. Particle Size N/A (Liquid): Sodium Hypochlorite in liquid form (no particle size limitation) is used in sanitation tunnels, where it provides immediate surface decontamination for high-traffic areas. Molecular Weight 74.44 g/mol: Sodium Hypochlorite with molecular weight 74.44 g/mol is used in odor control systems for wastewater treatment plants, where it neutralizes volatile sulfur compounds effectively. Viscosity 1.3 mPa·s: Sodium Hypochlorite with viscosity 1.3 mPa·s is used in automated dosing pumps for industrial cleaning lines, where it allows precise and consistent chemical delivery. Impurity (NaCl) <0.5%: Sodium Hypochlorite with impurity (NaCl) less than 0.5% is used in pharmaceutical facility equipment cleaning, where it ensures residue-free sanitization meeting regulatory standards. Boiling Point 101°C: Sodium Hypochlorite with boiling point 101°C is used in cooling tower water treatment, where it resists volatilization and maintains residual chlorine for biofouling control. |
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Sodium hypochlorite, with the chemical formula NaOCl, does most of its work behind the scenes. In our work as a chemical manufacturer, it’s clear that this compound stands among the most practical and essential chemicals shipped day in and day out. We supply it most often as a clear, pale yellow-green liquid. Its sharp, unmistakable fresh-chlorine scent reveals its role before anyone reads a label.
Our manufacturing teams consistently produce sodium hypochlorite solutions for industrial markets. The model and grade vary, but the most popular standard is a solution containing 12-15 percent available chlorine by weight, measured on the day of production. This range suits most water treatment plants and industrial clients. Lower concentrations, such as 5-8 percent, go out in smaller batches to institutional laundries and household suppliers. Either way, every liter starts with high-purity raw materials, consistent process control, and rigorous in-house analysis. We do this because we see every week how a small drift in strength or raw material purity can upset a big process downstream.
Our plant makes sodium hypochlorite by reacting chlorine gas with a carefully controlled stream of caustic soda solution. Operators track temperature, reaction time, and concentration as closely as any food manufacturer. If the process goes even slightly off-procedure, product stability fades and unwanted byproducts sneak in. Factory technicians check not only chlorine strength but also iron, heavy metals, and pH. Higher iron content, for example, makes for a cloudy solution — not the result a municipal water engineer wants pouring into a tank.
From our vantage point, sodium hypochlorite flows directly into many critical sectors. Water utilities rely on it to keep drinking water and public pools safe. Paper mills and food plants count on its performance for surface sanitizing and odor control. Hospitals and laundries dilute it further for disinfection. Farmers and packers run it over produce to cut microbial load, sometimes blended with exacting quality or colorants. Every sector leans on it for its unique ability to knock down bacteria, viruses, molds, and unpleasant odors, all without hefty installation costs.
Small changes in product grade matter. For surfaces and general sanitation, customers use the middle-concentration grades. Water treatment buyers go for the highest available concentration, saving money on freight and storage. Bleaching applications lag year-over-year but remain steady among some textiles and food processors who choose hypochlorite for ease over legacy powders or liquid chlorine.
Decades in the business reveal where sodium hypochlorite stands apart from alternatives. Compared to calcium hypochlorite — a solid, granular form — sodium hypochlorite arrives as a liquid. This removes dust hazards and simplifies dosing. Calcium hypochlorite holds more chlorine by weight, but the solid’s extra handling risks, caking, and feeding complexity make it less attractive for many of our large-volume water treatment clients.
Chlorine gas, a staple in older systems, threatens with corrosion, leaks, and heavier safety compliance. Liquid sodium hypochlorite skips these dangers. Tankers discharge into lined bulk tanks, and automated dosing pumps draw liquid directly into water streams without manual contact. This reduces training, liability, and capital risk for clients. It’s no surprise that municipalities have shifted almost entirely to liquid disinfection over gas.
Some customers consider chlorine dioxide for specialized jobs, especially where taste and odor matter, or where biofilms build up quickly. Chlorine dioxide works differently and requires special equipment, but it carries its own safety issues during on-site generation. In many scenarios, sodium hypochlorite stays the workhorse because it balances cost, convenience, stability, and track record.
If you ask staff on the production floor about headaches with sodium hypochlorite, storage and stability come up fast. The solution degrades over time. Its available chlorine content drops, especially at higher temperatures or sunlight exposure. Even the best-produced batch reacts with traces of metals, organic matter, or CO2 from the air. To minimize losses, we ship in UV-resistant containers, use lined tanks, and narrow down shelf life. Some of our water utility customers test their bulk tanks weekly and reorder more frequently in the summer.
Every barrel we send out carries a ticking clock. Product older than four to six weeks may fall below specification unless refrigerated — a luxury few customers want. That’s why we manufacture in regular, smaller lots and move trucks out fast. Research and experience both show that minimizing storage times keeps chlorine strength up without adding boosters or stabilizers, which can introduce unwanted residues.
Corrosiveness ranks high among sodium hypochlorite’s drawbacks. Spill cleanup involves careful rinsing and neutralization. Steel pipes corrode quickly unless protected with specialty coatings. All valves and tanks touching sodium hypochlorite must use plastic or corrosion-resistant alloys. Even a minor design flaw shows up as a leak or failed gasket after just a couple of months. While this pushes up handling and capital costs, we support clients by recommending the right materials and maintenance schedules based on decades of repairs and cycle counts.
Most sodium hypochlorite leaves our plant in large tankers, bound for drinking water reservoirs, swimming pool distributors, or intermediate packagers. Facilities with strong in-house environmental programs prefer larger bulk refills to cut down packaging waste. On rare occasions, an order goes in drums or small carboys, mostly for localized needs or remote sites. No matter the container, traceability and lot quality dominate our pre-shipment checks.
We track container cleaning, residual chlorine in the seals, and documentation. The feedback loop from customers is immediate if contamination creeps in — a regular reminder that even with thousands of shipments, one overlooked tank rinse can spoil the next user’s process. Our plant engineering team reviews customer tank setups, pointing out risks where venting, sunlight, or plumbing materials could run down available chlorine or introduce byproducts. Years of learning from tank failures and unexpected test results drive our advice on-site during installations.
Large-scale laundries handle tens of thousands of linens every day. Many operators prefer sodium hypochlorite for its ability to clear stains and kill pathogens in one step. Unlike hydrogen peroxide or ozone, sodium hypochlorite blends easily with common detergents, making it compatible with dosing and automation.
The food industry reaches for the product during cleaning sessions on floors, cutting boards, equipment, and storage rooms. Used carefully, it strips away bacteria and mold without introducing off-odors. Strict internal policies mandate rinsing and periodic checks, since food-contact safety means zero compromise with residues. Our technical team often gets calls asking for guidance on use concentrations and rinsing for new food certifications.
In agriculture, sodium hypochlorite runs in irrigation channels and soaking tanks. It keeps algae down and prevents bacterial wilt, especially in sensitive crops. Many greenhouse managers opt for this product because it leaves little chemical taste behind on produce when used at the right levels. Again, monitoring and dosing prove essential, so we help design and supply feed systems that match each client's scale and water chemistry profile.
Every customer, whether a data-driven city water board or a family-run laundry, depends on a known, repeatable product grade. We calibrate every batch on a modern titration line that takes into account temperature, real-time flow, and proprietary sensor feedback. Batches below the minimum setpoint are isolated and either reprocessed or properly disposed of.
Simple details matter to end users. If there’s a percent or two swing in available chlorine, pools can smell sharp or fade. Water plants could drift out of compliance, risking regulatory flags and costly fines. We’ve seen firsthand how clear communication on product strength prevents field confusion and cuts down calls to technicians. Many bulk buyers now demand certificates of analysis with each delivery to match their in-house records.
Shelf life starts decaying the moment the product leaves storage, so delivery schedules follow weather, warehouse temperature, and customer usage rates like clockwork. We share regular bulletins about best storage practices, including recommendations for indoor, climate-protected tanks, and regular cleaning of buildup. Our technical support stays on call year-round, especially during hot spells or when customers overhaul obsolete hardware.
Sodium hypochlorite has carved out its place on regulated hazardous chemical lists in many countries. Practically, this means manufacturers and users both face compliance requirements. In our operation, safety training, spill containment drills, and air monitoring feature in every operator’s routine. Local discharge standards keep us honest: Wastewater streams run through neutralization traps, and we sample effluent regularly to ensure residual chlorine stays within permitted limits.
Many clients run their own spill drills and secondary containment checks. For large water treatment facilities, local authorities sometimes inspect storage tanks and transfer areas unannounced. Over the years, sharing audit checklists and regulatory updates has built stronger ties with our buyers and government agencies alike.
Transportation imposes its own hurdles. Sodium hypochlorite transport requires special certification under international rules. Truckers must carry emergency kits and paperwork, and each load carries placards specifying contents and hazards. We work with shipping partners trained in hazardous material logistics who understand not just how to haul product, but how to recognize and act on leaks, temperature changes, or mechanical faults.
End users bear responsibilities too. Accidental mixing of hypochlorite with acids or ammonia-rich cleaners causes hazardous gas formation. Our sales and support specialists conduct site training and planning workshops with customers’ safety teams, sharing stories from real events to drive home the message. Years of experience underpin every recommendation; no technical bulletin replaces the lessons written in mistake and response logs.
While sodium hypochlorite delivers practical and affordable disinfection, its environmental impact cannot be ignored. Wastewater with high chlorine content threatens aquatic life. Overdosing in municipal plants can leave trace chemicals in rivers and lakes. As a chemical producer, we support research and customer efforts to minimize environmental footprint. We tailor dosing guides to match actual pathogen load, season, and water chemistry, avoiding unnecessary overuse.
Plant investments in real-time monitoring equipment improve our own effluent quality and compliance. Newer catalyst systems reduce the formation of chlorinated byproducts in both our production sidestreams and end-user applications. We track regulatory trends, participating in industry working groups alongside water utilities, engineers, and civic organizations. Best practices change, and chemistries evolve, but years on the production side drive home the importance of open communication among all stakeholders.
Recycling and repurposing off-spec or expired batches remains a challenge. Instead of simple disposal, some treatment plants accept these for neutralization and recovery projects. Such programs take time and planning, but reduce total chemical waste and lessen overall supply chain strain. We exchange process data with these efforts, opening channels for innovation.
Delivering reliable sodium hypochlorite takes more than running equipment. Years watching customers' operations and listening to feedback have shown which practices deliver consistent results and which shortcuts cause real problems. We share these observations because they come from the field, not just a technical manual.
Temperature and sunlight drive strength loss; leaks in plumbing show up as cost overruns and safety issues; batch mixing with incompatible cleaners carries consequences nobody wants to see unfold. Long-term relationships with hospitals, water plants, and factories have built safeguards into every step of our planning — from procurement and quality testing to technical field support and emergency response.
Chemistry isn’t static. Standards shift and users expect more insightful support. We invest in ongoing operator training, preventive maintenance, and equipment upgrades knowing that the right call made by a technician is worth more than an extra round of paperwork.
Sodium hypochlorite’s role in public health and hygiene drives us to keep improving what we produce and how we guide its use. Working closely with water engineers, processors, and regulatory agencies, we spot the early warning signs of shortages, degradation, or misuse and take action.
As energy costs rise and environmental regulations tighten, efficient manufacturing and responsible supply chains become essential. We look to continuous process improvements and product stewardship—not as buzzwords, but as necessary realities if future generations are to continue benefiting from the safety and value these chemicals bring.
In the end, every batch we ship represents collaboration between skilled workers, engineers, customers, and regulators. Transparent communication and shared experience—not just technical specs—drive the responsible use of sodium hypochlorite, shaping safer, cleaner operations across every industry we serve.