|
HS Code |
162819 |
| Chemical Name | Potassium Carbonate |
| Chemical Formula | K2CO3 |
| Molar Mass | 138.205 g/mol |
| Appearance | White solid, hygroscopic powder or granules |
| Odor | Odorless |
| Melting Point | 891°C (1636°F) |
| Boiling Point | Decomposes before boiling |
| Solubility In Water | 112 g/100 mL at 20°C |
| Density | 2.43 g/cm³ |
| Ph Of 1 Solution | 11.6 |
| Cas Number | 584-08-7 |
As an accredited Potassium Carbonate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | White, sturdy 25 kg woven plastic bag with inner polyethylene liner, labeled “Potassium Carbonate,” including hazard warnings and manufacturer details. |
| Container Loading (20′ FCL) | 20′ FCL can load about 25 MT of Potassium Carbonate, packed in 25 kg bags, on pallets or without pallets. |
| Shipping | Potassium carbonate is shipped in tightly sealed, moisture-resistant containers such as drums or bags to prevent caking and contamination. During transport, it should be kept dry and protected from acids and incompatible substances. Appropriate hazard labeling and documentation are required in accordance with regulatory guidelines for chemical shipping. |
| Storage | Potassium carbonate should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from moisture and incompatible substances such as acids. The storage area should be protected from water and humidity to prevent clumping and degradation. Keep away from strong oxidizers and sources of ignition. Proper labeling and spill containment measures are recommended for safe storage. |
| Shelf Life | Potassium carbonate typically has a shelf life of 2-3 years if stored in tightly sealed containers, in a cool, dry place. |
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Purity 99%: Potassium Carbonate with purity 99% is used in glass manufacturing, where it enhances clarity and brightness of the final product. Viscosity grade fine: Potassium Carbonate viscosity grade fine is used in liquid soap production, where it ensures optimal lather and smooth viscosity. Molecular weight 138.21 g/mol: Potassium Carbonate with molecular weight 138.21 g/mol is used in fertilizer formulations, where it provides precise potassium nutrition for enhanced plant growth. Particle size 50 microns: Potassium Carbonate with particle size 50 microns is used in ceramics glazing, where it allows for uniform coating and surface finish. Stability temperature 800°C: Potassium Carbonate with stability temperature 800°C is used in high-temperature baking applications, where it maintains chemical integrity and prevents decomposition. Anhydrous grade: Potassium Carbonate anhydrous grade is used in pharmaceutical buffer solutions, where it maintains consistent pH levels during formulations. Free-flowing powder: Potassium Carbonate free-flowing powder is used in fire extinguisher agents, where it ensures rapid and uniform dispersal during fire suppression. Low chloride content: Potassium Carbonate with low chloride content is used in photographic chemicals, where it prevents unwanted corrosion and image defects. |
Competitive Potassium Carbonate prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact 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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Working hands-on in this business, we’ve seen potassium carbonate shape all kinds of industries, from glass and ceramics to specialty chemicals, food processing, and even firefighting. Potassium carbonate, known by its chemical formula K2CO3, looks like a white granular powder and draws water fast—it's what you call “hygroscopic.” Anyone who handles it knows you can’t cut corners on purity, grainsize, or how you store it. Our standard grade keeps a minimum potassium carbonate content above 99%, and we manage chloride and iron levels closely, since downstream processes are unforgiving. The basic model we produce lines up with a wide range of applications, but over the years, we’ve dialed in several specifications by customer request or field experience.
Making potassium carbonate starts with quality potassium-containing minerals or liquid feedstock, usually potash. We use a conversion process that relies on monitored reaction temperatures, careful water control, and evaporation steps that draw out the carbonate just right. It’s tempting to rush the drying cycle, but you learn quickly that even a little extra moisture kills the product’s flow and invites caking—something nobody wants in large-scale mixing or packaging. Our operators monitor every batch; automated sensors back up our eyes, but you can still learn a lot just from touching a finished bag.
Customers ask about granule size and purity often, and for good reason. A glassmaker needs the powder loose for smooth melt and clear end-result, so we keep granulation fines out. In specialty chemicals, trace chloride or iron can throw off a catalyst. For food, the bar gets raised higher; we take pride in production floors and drying lines set up to keep foreign material and cross-contamination out, ensuring the final product stays food-safe. We routinely provide potassium carbonate with varying granulometry – from fine powder to microgranular – because the smallest shift in grain size changes dusting at the mixer or influences handling in pneumatic systems. Our team tests every run for:
Due to the high solubility of potassium carbonate, users get an alkaline solution that stays stable. Some applications, such as in photographic developers or as a buffering agent, take advantage of this feature. Unlike sodium carbonate, potassium carbonate brings less risk of precipitation and performs reliably in softer water systems.
Our team sees trends across food, glass, detergent, and fertilizer plants. In glassmaking, potassium carbonate raises the refractive index and lets craftsmen create brighter, denser glassware or specialized optical components. The food sector uses food-grade potassium carbonate as a leavening agent in noodles, or to soften water and adjust pH, particularly in cocoa processing or application as a brine ingredient for olives and other pickled produce. The demand for potassium-based fertilizers is surging as growers and greenhouse operators shy away from chloride-heavy products.
Much of our output heads for liquid soap and detergent makers. Potassium carbonate's high solubility produces clear, effective concentrated cleaners. It supports saponification in industrial soap kettles and creates a smooth product that rinses clean with less residue than sodium schemes.
The fire protection sector leans on potassium carbonate in specialty fire suppression systems, especially those targeted for Class K and Class B fires. The compound provides a stable, non-corrosive base that doesn’t impair sensitive electronics or create toxic byproducts. Bulk shipments for this sector must never pick up contamination or excess water, so every load faces triple-checks before leaving the plant.
Clients often ask: What’s the difference between this product and classic soda ash or caustic soda? Practical experience shows that potassium carbonate brings several advantages to the table. Potassium ions increase glass density and brightness, pushing performance where sodium can’t compete. In the food industry, potassium carbonate supplies to the growing number of products that can’t use sodium due to health guidelines or specific technical pathways. Saponification and water softening both play out differently with potassium versus sodium-based options. Our product acts as a gentler pH modifier than sodium hydroxide but steps up with better buffering than sodium bicarbonate. On a technical side, potassium carbonate powder stays dry and avoids the clumping common with potassium bicarbonate blends.
In chemical manufacturing, potassium carbonate stands out for not introducing sodium—a contaminant in many specialty pathways—particularly where residue management shapes costs and final yield. It's a firm favorite in battery electrolytes, specialty ceramics, and dye production. In those settings, using sodium carbonate would bring unwanted impurities, affecting lifetime and stability.
Potassium carbonate always wants to pick up water from the air. In a humid plant, or in the wrong bag, it cakes quickly. We only use laminated, multi-ply bags with PE lining and recommend sealed, moisture-proof containers at your facility. The filling lines inside our production plant run climate-controlled. We watch the microclimate near the packing head, and monitor product density to keep each batch within tight tolerance. For bulk shipments, lined bulk containers or tankers maintain consistency through long hauls.
Inside a processing plant, keeping the workhorse’s reliability means monitoring dust collection, especially when handling fine grades. Plant operators should always dry-load silos or blending lines, or finish unloading quickly enough to minimize time exposed to ambient air. We partner with users on tailored handling guides to reduce dusting and clumping issues. Consistent feed and absence of clumps protect downstream blending accuracy.
A lot of customers tell us stories about other suppliers—batches that vary in moisture content, grains that start to clump on shipment, or “off” colors that show up on tight glass batches. We know a single subpar batch can throw off a whole production run, or worse, damage customer trust. That’s why we always publish full certificates of analysis, batch by batch, and invite third-party inspection if requested. Our lab tracks every lot, sequencing titration and ion-exchange checks. The most common rejections come from chloride or dust content, and we're strict about catching those before anything leaves our facility.
Food-grade clients request audits regularly. Site visits mean they see our HACCP and allergen-risk strategies firsthand. We immerse our team in constant food safety training and refreshers, since regulatory standards never stand still. Maintaining clean lines between technical, food, and pharma-grade runs protects end product and reputation.
We value honest, direct feedback. Some clients flag dusting in pneumatic lines; others report caking in hot, humid storage. Sometimes a lab technician needs a finer or coarser grain we weren’t yet making. We take those conversations and test them at bench or pilot scale until a better solution emerges. These improvements—tighter drying specs, antistatic packaging, tweaks in storage instructions—get added to standard practice, not just for one customer but for every bag moving out our gate.
Building export markets brings its own challenges. Some regions value granular product—less dust, easier discharge—while others call for a high-grade powder to blend rapidly. Water content specs shift based on shipping times and storage climate at destination. We handle every order with a clear understanding of its specific end use and local regulations, including labeling and language. Integrated export compliance means smoother customs clearance, fewer surprises, and less risk of shipment delay.
Domestic clients benefit from shorter lead times and more flexibility. If weather disrupts a scheduled delivery, we offer contingency storage. Because potassium carbonate supply often drives time-sensitive batch operations in glass, soaps, or leavened foods, we keep a strategic buffer in pilot silos during peak cycles. All this requires internal coordination and a willingness to hear from the line operators, not just the office.
Sustainability isn’t just a catchphrase—we see its weight every day in process design and waste streams. Potassium carbonate itself poses lower toxicity to people and aquatic life than some other alkali agents, but that doesn’t exempt us from stringent responsibility. Our plant runs effluent management systems to reclaim water and minimize discharge. By sourcing early-stage minerals and practicing responsible chemical management, we keep heavy metals and non-soluble by-products out of the process.
Worker safety matters too. Potassium carbonate fine powder can irritate eyes and the respiratory system if mishandled. That’s why our PPE guidance is strict, with frequent site walk-throughs and team input welcomed. Training moves beyond regulatory tick-boxes and gets real feedback from people who work the lines, keep the floors clean, and load the trucks.
Switching processes over to potassium carbonate isn’t always a simple choice. Many operations default to sodium carbonate out of habit or price. As regulatory pressure mounts on sodium use in food, water discharge, and industrial chemicals, we see more organizations reconsidering. The advantages include higher potassium yield per gram, reduced risk of introducing unwanted ions, and increased product functionality, particularly in specialty food production and glass technology.
For new users, we provide technical workshops and scale trials—taking feedback directly into process tweaks before any full switchover. That approach reduces surprises and helps users realize the performance boost and regulatory advantages without downtime. Our facility also collaborates on new blends for specialty ceramics, heat-resistant glass, and food manufacturers transitioning to reduced-sodium or potassium-enriched formulations.
Everyday production brings predictable challenges, like winter condensation inside rail cars or impact from global freight disruptions. We rely on continuous small-batch testing, regular operator meetings, and tight relationships with packaging suppliers. Product moves straight from climate-controlled drying to sealed filling lines, then into inventory within strict use-by limits, ensuring performance never dips.
Large-volume buyers get guaranteed batch sequencing, so finished products remain consistent, and we can trace every order back to source material and process batch. This traceability acts as insurance for our customers—if there’s ever a claim, we don’t hide behind paperwork.
Smarter, cleaner energy processes, next-generation batteries, and agricultural technologies—all now demand even tighter controls on alkali purity and trace element contamination. Our R&D team works with partners in battery development and clean-tech, constantly searching for ways to adapt potassium carbonate’s attributes where other materials fall short. Whether it’s a lower-chloride batch for lithium battery slurry, or a micronized food-grade powder for improved blending in fortified foods, we push the limits of conventional bulk chemical processing.
Farm operators in water-sensitive regions often seek out our lower-chloride variant for irrigation or hydroponics, knowing it supports plant growth without building up salts that could slow root uptake. We also research alongside universities, sharing knowledge and product benchmarks openly, which helps the community address technical and food-safety questions.
Every day, feedback from glassmakers, food processors, chemical engineers, and sanitation professionals shapes our process. We stay aware that the best solution is not always the status quo. Chasing improved grain sizes, lower moisture, and consistent output pushes us to experiment, invest, and adapt.
Our role in the potassium carbonate supply chain is as a careful listener and advisor, alert to the complex demands of industry and prepared to improve our approach with every load. Reliability isn’t a marketing line. It comes from a willingness to listen to those who use the product—where even small improvements in clarity, flow, or purity count. By investing in team knowledge, modern plant upgrades, and open lines for feedback, we stand behind every shipment our trucks deliver.
The work never really ends—we keep driving at reliability, safety, and progress so the industries and people who rely on our potassium carbonate get all the benefits they expect, every time.