| HS Code | 944107 |
| Chemical Name | Fumaric Acid |
| Chemical Formula | C4H4O4 |
| Molecular Weight | 116.07 g/mol |
| Appearance | White crystalline solid |
| Melting Point | 287 °C |
| Solubility In Water | 0.63 g/L at 25 °C |
| Density | 1.635 g/cm³ |
| Cas Number | 110-17-8 |
| Pka | 3.03 |
| Odor | Odorless |
| Taste | Sour |
| Iupac Name | but-2-enedioic acid |
| Einecs Number | 203-743-0 |
As an accredited Fumaric Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Fumaric Acid is packaged in a 25 kg white woven bag with inner plastic lining, clearly labeled with product information and safety warnings. |
| Shipping | Fumaric Acid should be shipped in tightly sealed containers, protected from moisture and incompatibles. It is typically transported as a non-hazardous solid under normal conditions. Ensure labeling in accordance with local regulations. Store and ship in a cool, dry place, away from strong oxidizers, and handle with appropriate protective equipment. |
| Storage | Fumaric acid should be stored in a cool, dry, well-ventilated area, away from moisture, heat sources, and incompatible substances such as strong oxidizers and bases. Keep it in tightly sealed containers made of compatible materials. Store away from direct sunlight and sources of ignition. Properly label the storage containers and ensure access is restricted to qualified personnel to prevent accidental exposure. |
Competitive Fumaric Acid prices that fit your budget—flexible terms and customized quotes for every order.
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Decades of handling organic acids taught us that nothing replaces first-hand control over purity, consistency, and traceability in manufacturing. We produce fumaric acid with a watchful eye on every batch, not just as a routine but as a core responsibility to food, pharma, animal feed, and technical customers. Our model, manufactured by direct isomerization of maleic acid under regulated conditions, keeps variation in check and helps customers avoid unexpected results in their end products.
Many in the market have debated the best way to secure high-purity fumaric acid with reliable crystallinity. Experience tells us that starting with pure maleic anhydride brings a repeated outcome batch after batch. Our process achieves a chemical purity typically above 99.5% and water content below 0.5%, with a melting point close to 287°C. Each lot passes analytical protocols including spectrophotometry and chromatography, reflecting objective verification rather than just assurance by the supplier.
Food grade fumaric acid runs through several filtration and recrystallization stages to meet strict regulatory and sensory demands. This version meets the tightest limits for heavy metals, arsenic, and color. The granular and powder forms help snack producers, beverage formulators, and leavening system engineers achieve the consistent tartness and shelf-life stability they demand. Since our output process anchors both flowability and minimal dust, the addition into dry mixes remains predictable. Industrial users looking for technical-grade fumaric acid benefit from robust handling properties and batch-to-batch chemical uniformity, supporting applications in resins, unsaturated polyester, and surface-treatment blends.
One story stands out: a partner in the dairy dessert industry once saw flavor losses and off-odors from unstable acidulants bought from near-anonymous sources. After switching to our food-grade fumaric acid, they saw stable tartness over hundreds of production cycles, improved clarity, and avoided crystallization at low temperatures. These are the kinds of results that keep clients returning not for a flashy brochure but for repeatable quality.
Fumaric acid regularly sits beside citric and malic acid on buyers’ lists. Our own journey supplying all three reveals honest points of difference. Citric acid dissolves faster in water and tastes milder. Malic acid often costs a little more but brings a more rounded sour profile. Fumaric acid’s lower solubility allows release of acidity at a steady pace. In dry food uses, it resists premature reaction during storage and releases its acidity during processing or baking, an especially useful trait for leavening blends like baking powders or tortilla mixes.
Powder-level differences create visible changes in workflow for large users. Fumaric acid powder packs a higher acid strength per gram than citric or malic, allowing for reduced addition rates—not a small factor for cost efficiency. Over-adding fumaric acid by mistake infuses a sharper sourness, so technical training and process control matter. Granular fumaric acid works better in certain direct compression or feed applications, resisting caking without needing anti-caking agents. Each form we offer reflects hands-on experience handling various customer needs, from bakery lines to engineering plastics.
Some markets have accepted resellers who buy bulk fumaric acid and re-label without insight into the real process. In contrast, owning the manufacturing floor lets us control trace elements, limit unknown side-reactions, and troubleshoot issues directly. Our technical team routinely checks polymorphic stability and screening for unexpected isomers. We encountered a resin manufacturer whose product strength fluctuated due to inconsistent acids from importers. Our tight quality control gave them reproducible curing behavior and reduced downtime adjusting their process parameters.
Fumaric acid must fend off misconceptions linked to its various grades. Pharmaceutical customers, for instance, require absolute assurance of the absence of maleic acid residues and definitive documentation on allergens and trace levels of formaldehyde. We support these needs by running release tests, archiving full batch records, and providing customer support for technical queries, not just sales invoices.
The food industry, in particular, relies on predictable shelf-life and compliance to food safety rules in diverse markets. Wider adoption of clean-label formulas put fumaric acid in the spotlight since it can replace additives like sodium acid pyrophosphate and artificially modified acids. Fumaric acid’s non-hygroscopic nature—meaning minimal moisture attraction—matters in pre-packaged bakery mixes and dry soup bases. This reduces lumping and extends product use in both industrial and home kitchens.
The animal nutrition sector, although less obvious, increasingly uses fumaric acid to optimize energy yield and gut microflora in feeds. Feed-grade fumaric acid must limit heavy metals and retain consistent free-flow characteristics, particularly in pelletizing steps. We have refined crystal size distribution to keep blends stable, minimizing losses from dusting and improving overall process hygiene. That’s something not always captured in resold product, where variability creeps in unnoticed.
In polymers and surface-treatment, fumaric acid serves as a well-defined crosslinker. Our on-site technical analysis, including routine FTIR and viscosity testing in model reactions, helps our customers match raw material quality with end-product performance. This direct communication, backed by real sample archives and not just generic certificates, closes the feedback loop between user and producer.
Many customers ask whether citric, malic, or fumaric suits their needs best. Citric acid is typically used where quick acidification and high-water solubility help, such as in carbonated beverages and clear jams. Malic acid finds favor in fruit preparations and confections for its smoother tartness and ability to amplify certain fruit flavors. Fumaric acid’s slower dissolution benefits dry mixes, extruded snacks, tortillas, and some protein shakes where shelf stability and late-stage acid release matter most.
Over years in manufacturing, we saw how fumaric acid addresses precise technical demands not easily covered by substitutes. A bakery customer, testing shelf stability in hot climates, swapped sodium acid pyrophosphate for fumaric acid in their leavening powder. The result: flatter cakes from longer storage were replaced by consistent volume over six months, thanks to slower reaction in dry form and sharp activation during baking. Another example: in PVC processing, small deviations in purity can alter the thermal stability of compounds. Our ability to control trace metal profiles during production helps converters achieve targeted color and mechanical properties, driving end-customer satisfaction and fewer production complaints.
Many end-users take for granted that all fumaric acid is the same, but production route and plant controls impact quality and consistency. Sourcing from traders or aggregators without direct plant involvement leads to uncertainty about origin, handling, and possible contaminants. Our plant integrates quality management systems audited regularly for compliance with ISO and local regulations. This approach allows early detection of anomalies, intervention before shipment, and clear allocation of responsibility, which we don’t delegate to others.
We keep sample retains from each shipment and track feedback directly with users. Several food producers recounted mixed results with grey-market fumaric acid, finding unwanted odors or color leading to costly product recalls. By keeping raw material and production in-house, we offer transparency that allows customers to trace issues back to the source and, more importantly, avoid them through prevention.
Rarely do technical queries stop at the point of sale. Our approach gives customers access to formulation advice, troubleshooting, and suggestions for optimization beyond what distributors provide. We regularly get questions about reaction rates in baking powders, crystal dissolution in beverage syrups, or off-flavor management in animal feeds. With direct oversight of particle sizing and an archive of historical analytical profiles, our team provides practical, field-tested solutions, not just generic advice.
We support trials and research projects with small-volume custom batches, allowing R&D teams to fine-tune recipes before moving to bulk orders. This feedback loop has led to meaningful improvements in both product and process design. A noodle producer seeking to reduce sodium content in dried soup products found better seasoning release and shelf-life extension by switching from other acids to our fumaric after benchmarking outcomes side-by-side.
Safety runs as a theme throughout the production line. Our team trains in chemical handling and environmental controls, applying closed-loop water and air systems to minimize emissions and effluents. We continually invest in energy efficiency across evaporation and crystallization. By managing environmental risks responsibly, we avoid shutdowns and provide peace of mind to customers subject to both local and global compliance scrutiny.
We’ve adopted traceability software that tracks input sourcing, batch processing, and shipping. Technical and regulatory staff coordinate to update documentation as allergen status, permissible residual solvents, or global food contact regulations evolve. If new requirements arise, we reformulate or adapt the purification process to maintain accessibility for all product grades.
Customer dialogue informs our ongoing research in particle engineering, blending, and tailored performance customizing for emerging needs. We work directly with partners experimenting with fumaric acid in plant-based proteins and novel delivery formats. Our labs run real-product simulations aligning with customer processing environments—whether extrusion, spray-drying, or direct tableting. This partnership-style engagement gives us early sight of market trends and, in return, helps users de-risk adoption of new solutions.
Constant learning from scale-up operations and customer feedback prompts us to refine not only the main product attributes but the overall usability in customer factories. Investment in automation and vision systems across the packaging line has lowered the risk of mix-ups, ensuring that food and technical grade never get cross-contaminated. Such lessons, gathered over the years, underscore how product quality and plant discipline walk hand in hand.
Each application brings its own set of limiting factors. Fumaric acid, with its lower water solubility relative to citric and malic, sometimes fits poorly in instant beverage powders or clear drinks unless paired with appropriate solubilizing agents. We advise clients on blend optimization strategies—balancing particle size, granulation, and mixing order—to ensure intended dissolution or reactivity.
Some technical users value fumaric acid’s sharp flavor impact. Its higher molecular acidity compared to other acids means small increases in usage can change the sensory profile of foods or feeds significantly. We always encourage users to trial formulations, as over-acidification can quickly push products outside the expected flavor window. By supplying technical data and supporting test runs, we help minimize costly errors.
Our plant’s on-site blending and particle sizing capability allow us to deliver custom grades, from superfine powders for quick-dissolving mixes to larger granules for extended-release in feeds or tableting applications. These innovations grow from continued close work with customers, not from static catalogs or anonymous commodity trading.
Years manufacturing fumaric acid taught us that customers need more than compliance with a standard or a high purity number. As manufacturing specialists, we know the hidden difficulties from inconsistent supply, poor documentation, or misunderstood application support. By combining rigorous plant controls, broad field experience, and hands-on troubleshooting, we help partners focus on their own product innovation rather than wrestling with basic raw material issues.
Fumaric acid’s role varies, from shelf-life protection in modern food systems to backbone resin functionality in manufacturing lines. Our direct involvement at each step ensures customers get material made with care and delivered with the technical support to make it work—batch after batch. That’s the advantage you gain working with the manufacturer, and that’s our promise on every delivery.