|
HS Code |
328074 |
| Chemical Name | Sodium Hydroxide |
| Common Name | Caustic Soda Flakes |
| Chemical Formula | NaOH |
| Appearance | White flakes |
| Molar Mass | 40.00 g/mol |
| Solubility In Water | Highly soluble |
| Melting Point | 318°C |
| Boiling Point | 1390°C |
| Density | 2.13 g/cm³ |
| Ph Value | Strongly alkaline (pH 13-14) |
| Odor | Odorless |
| Cas Number | 1310-73-2 |
As an accredited Caustic Soda Flakes factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | White HDPE bag labeled “Caustic Soda Flakes, Net Weight: 25 kg,” featuring hazard symbols and manufacturer’s information, tightly sealed. |
| Container Loading (20′ FCL) | A 20′ FCL can typically load about 25 metric tons of Caustic Soda Flakes, securely packed in 25kg plastic woven bags. |
| Shipping | Caustic Soda Flakes are shipped in tightly sealed, corrosion-resistant HDPE or laminated bags, typically 25 kg each, stacked on pallets. The packaging ensures protection from moisture and contamination. Shipments require careful handling and labeling as a hazardous chemical (UN1823), with documentation adhering to safety regulations for transport by road, sea, or air. |
| Storage | Caustic Soda Flakes should be stored in a cool, dry, and well-ventilated area, away from moisture and incompatible materials such as acids. Use tightly sealed, corrosion-resistant containers to prevent absorption of moisture and carbon dioxide from the air. Ensure containers are clearly labeled and kept off the ground, protected from direct sunlight, heat, and physical damage to maintain stability and safety. |
| Shelf Life | Caustic Soda Flakes have an indefinite shelf life if stored properly in a tightly sealed container, away from moisture and contaminants. |
Competitive Caustic Soda Flakes 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.
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Tel: +8615365186327
Email: sales3@liwei-chem.com
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Every day, operators at our production plant see the role caustic soda flakes play across a range of industries. This isn’t a new product for us—it’s been a staple of our output for years. We produce sodium hydroxide flakes that hold their white, solid form, drawing strength from a purity above 98.5%. Our direct involvement in production means we monitor every batch for physical texture, consistency, and chemical strength. Familiarity with material behavior doesn’t come from books; it comes from handling tons of product, batch after batch, year in and year out.
Anyone working with sodium hydroxide knows it doesn’t just come in one form. With experience, we’ve learned that flakes deliver certain advantages in real settings. Unlike caustic soda pearls, flakes offer a flatter, thinner structure. This changes the way they dissolve in water or get distributed during use. Compared to solid blocks, flakes handle easier and break down more efficiently, reducing safety risks. Our team also finds that flakes store better for customers in humid climates, resisting caking if sealed and handled as shipped.
We run both flake and liquid caustic soda lines on site. Each fulfills a different task. Liquid caustic (around 32% or 50%) works for direct chemical dosing or continuous processing. Flakes come in when safe transport and storage matter most. Packaging in multi-layer bags protects purity, and users find that a flake format minimizes dust and splintering. Unlike liquids, flakes allow for easier stockpiling over long periods—customers who run seasonal operations benefit from this.
Consistent purity means more predictable reactions. On our production floor, we know a deviation of even 0.5% sodium hydroxide content can affect a customer’s chemical yields. We filter and dry caustic soda under controlled environments, using stainless steel equipment that keeps metallic contamination in check. Our testing lab repeats titration analyses for every lot. This commitment to purity isn’t just technical—it means downstream processes like pulp whitening, textile dyeing, and water treatment produce less waste and fewer rejects. Failures raise costs, and as manufacturers, we see the impact most when batches fall short.
As sodium hydroxide producers, our daily deliveries go to a wide mix of plant sites. Paper and board mills count on steady shipments to support the kraft pulping process. Here, caustic soda flakes help break down lignin, letting plant fibers release and whiten cleanly. Textile customers value the product for mercerising cotton—this involves swelling cotton fibers to boost dye absorption and fabric strength.
Water treatment plants order flakes to adjust the pH of municipal and industrial effluents. Staff at these plants trust flakes since dry handling keeps operations clean, and flake dissolution forms no lumps when added slowly to water. In soap manufacturing, operators find the product useful for saponification. Caustic soda reacts with fats to form soap, and flakes’ easy measurement helps maintain batch consistency. Alumina refineries also rely on sodium hydroxide to dissolve bauxite ore during aluminum extraction. Here, purity and controlled flake size keep processing predictable and minimize system fouling.
Cleaning and disinfection businesses know the value of caustic soda for removing grease and organic build-up from pipelines and tanks. Experience shows that dosing flakes reduces spills and exposure compared to handling more volatile liquids in drums. Operating in tough sectors like oil and gas, field teams notice that flakes offer robustness against rough handling, and their packaging withstands long storage on remote sites.
First-hand exposure to different customer sites has shaped how we send out product. Multi-layer paper or PE-lined bags, sealed tightly, prevent moisture uptake during storage or shipment. We routinely ship by road, rail, and sea. Whether it’s 25 kg bags for smaller workshops or break-bulk lots on pallets for bigger users, packaging format affects product safety—both during transit and final use.
Our team doesn’t just focus on bulk volume; we consider workforce safety at every handoff. Each year, plant operators handle thousands of bags, so we reinforce training on correct lifting and spill control. Flakes’ packaging and physical form make accidental leaks less likely. Simple steps keep caustic burns at bay: good gloves, goggles, and time-tested procedures. We’ve improved our in-plant loading standards so forklifts never pierce bags, and investing in pallet wrap cuts down on bag-rips or corner damage.
Having managed batches from reaction to bagging, we pay careful attention to more than just sodium hydroxide percentage. Chloride and iron content, moisture level, and insoluble matter get checked on every run. These “secondary” numbers can matter just as much—it’s easy to overlook that excessive chlorides can damage certain valves and pipes, or that a little too much moisture will trigger clumping the first hot day in storage.
We don’t chase after awards or certifications just to hang them on the wall. Ongoing quality comes from rigorous daily checks, calibrated lab gear, and above all, staff whose eyes catch small flaws before they reach the customer. For end-users, we know from experience that receiving consistent flake size, no foreign material, and tight chemical specifications lets their operations keep moving. Any hiccup in upstream quality can mean process shutdown or expensive troubleshooting.
We’re not insulated from costs or environmental concerns. Producing sodium hydroxide requires substantial steam, electricity, and brine handling. Since we own both the process and residue management, we’re forced to see the full environmental picture. Recovering and recycling brine, using modern chlor-alkali electrolysis, and investing in closed-system washing helps us minimize both resource use and impact.
For many customers, flakes provide a responsible middle ground. Bulk liquid caustic soda creates more risk during accidental release, especially if a storage tank fails. Solids, while more convenient for some, have their own handling hazards—dust can irritate lungs and eyes. Over the years, we’ve tuned our process to deliver flakes that are free-flowing and low in dust while reducing water use and waste output at our plant.
Shipping flakes to far-off customers also tends to require less complicated containment measures compared to liquid products. Fewer environmental headaches for transport companies means better pricing for end-users. Economic efficiency comes partly from our bulk purchase of raw sodium chloride, but several years of investing in energy-efficient electrolysis play a big part in our overall cost structure.
Extended storage of sodium hydroxide can become a headache. Experience proves the biggest threats come from moisture and air exposure. Even sealed flakes, left too long in a humid warehouse, eventually draw in water from the air and may start to cake or solidify along bag edges. This doesn’t mean product loss every time, but it can slow down dispensing and reduce ease of use.
Our advice always leans on practical habits: store bags indoors on pallets, avoid stacking them directly on concrete floors, and cover with tarps in tropical climates. Staff know that keeping aisles clear and pallets separated for airflow reduces humidity-related clumping. We provide recommendations based on our in-plant learnings, and we’ve revised our own warehouse procedures more than once after learning lessons the hard way.
Sodium hydroxide, in any form, demands respect. We’ve dealt with every kind of safety incident: small bag tears, accidental wetting, even rare inhalation cases. From these experiences, our training now emphasizes rapid spill control, eyewash station placement, and the right way to neutralize minor spills safely with dilute vinegar or citric acid. We ship safety information to every customer and offer on-site procedural support for bigger users.
Handling dry flakes turns out to reduce many risks compared to other sodium hydroxide forms. Liquid caustic poses a greater splash hazard—one mistaken pump fitting can mean a dangerous release. Caustic soda pearls can bounce or roll, making spills harder to sweep up quickly. With flakes, accidental releases tend to stay put, and sweep-up is fast if staff react promptly. All this, seen directly on our own floors, shapes our advice to users and informs ongoing product improvements.
Refining our caustic soda flake product didn’t happen overnight. A decade ago, our flakes weren’t as consistent in size or purity. Thanks to investments in drum dryers, better evaporation techniques, and continuous feedback from high-usage clients, we now produce flakes with predictable behavior in every application. Customers first assessed our early trial runs in real-world operations; their input drove us to control trace elements better and change the way we dry and sieve the product.
Market demands shift, sometimes suddenly. Several years ago, a jump in textile manufacturing sent us searching for ways to further raise batch yield. Feedback from factory technicians visiting our site prompted upgrades to our handling systems. Greater automation led to less breakage and cleaner product. Listening to long-term clients helped us understand their downstream needs better than any technical manual could.
In times of supply disruption or raw material price swings, being a manufacturer gives us more control and transparency. We communicate directly with buyers—not through traders—so we can warn of potential delays or suggest substitutes when necessary. Over time, this relationship-building cuts down on misunderstandings and rushed orders.
Motivation for our production teams extends beyond meeting a quarterly target. Many of us started in family-run chemical operations or have relatives working in sectors that rely on our product. Each time we ship a container or a full truck, we know it’s helping someone keep their factory running, their water treated, or their paper process up to standards. This connection to real-world outcomes sits behind the pride we take in consistent caustic soda flake output.
Knowing where and how the flakes get used—and sometimes hearing about the final products built with our help—keeps morale high. We’ve designed staff rewards not just for efficient production, but also for catching and correcting problems before they leave the plant. By encouraging experienced team members to train newcomers, we pass along not only technical know-how, but a sense of responsibility for customer safety and satisfaction.
On factory visits or calls, customers ask practical questions. Will your flakes dissolve smoothly in cold process water? Do they carry unintended impurities that might foul catalytic systems? Will humidity during shipment reduce shelf life? These are not “spec-sheet” questions—they matter because they impact real factory hours, maintenance costs, and safety. As manufacturers, we answer them using data from our own operations and from customer experience. We track and recheck batches kept in storage, try out new packaging ideas, and measure our results.
People also ask about the difference between our flakes and imported, repackaged caustic. Having full control over the raw brine source, electrolysis process, flaking, drying, and bagging means no surprises. By keeping every process step in-house, we lower risk from bulk handlers, contaminated lots, or relabeled goods from unknown sources. Over time, direct feedback lets us catch any rare slip and act before it becomes a pattern.
After decades in caustic soda production, some common themes repeat themselves across industries. Well-labeled and secure packaging cuts down on accidents. Prompt, honest communication wins customer trust. Routine maintenance of valves and hoppers keeps flake dispensing equipment working over years, not just months. Promptly removing damp or failed bags from the line minimizes big cleanups later.
We’ve also seen that sharing best practices—across companies and markets—helps everyone. We offer short training sessions to users who want to tour our site, talk through storage tips, or compare notes with our operators. Open access to real operating data, not just marketing claims, is the best way to raise standards for everyone in our line of work.
Caustic soda flakes stand as the unsung workhorse in many sectors. Despite advances in dissolved and powdered alternatives, flakes retain advantages in durability, cost, and safety for many users. As regulatory and environmental standards climb, we’ve expanded our investments in cleaner input materials, zero-waste processing, and renewable energy integration. Our plan is to further reduce energy consumption and brine losses by applying new membrane cell technologies.
For industries wanting solid, reliable sodium hydroxide with clear traceability, flakes remain a best choice. Working closely with each client, collecting detailed feedback, and running continual in-plant experiments keep us responsive to shifting requirements. In times of market volatility or regulatory change, maintaining direct production and control allows us to keep quality and supply consistent. Each shipment of caustic soda flakes carries practical know-how, hard-earned improvements, and a willingness to keep adapting to real-world needs.