Citric Acid Anhydrous

    • Product Name: Citric Acid Anhydrous
    • Chemical Name (IUPAC): 2-hydroxypropane-1,2,3-tricarboxylic acid
    • CAS No.: 77-92-9
    • Chemical Formula: C6H8O7
    • Form/Physical State: WHITE CRYSTALLINE POWDER
    • Factroy Site: 21F Block A No.66 Lvzhou South Road, Rizhao, Shandong, China
    • Price Inquiry: sales2@liwei-chem.com
    • Manufacturer: Rzbc (Juxian) Co., Ltd.
    • CONTACT NOW
    Specifications

    HS Code

    492897

    Chemicalname Citric Acid Anhydrous
    Casnumber 77-92-9
    Molecularformula C6H8O7
    Molecularweight 192.12 g/mol
    Appearance Colorless or white crystalline powder
    Solubilityinwater Very soluble
    Meltingpoint 153°C
    Phvalue 1.8 (1% solution)
    Odor Odorless
    Taste Strongly acidic
    Boilingpoint Decomposes before boiling
    Density 1.66 g/cm³
    Shelflife 2-3 years
    Ecnumber 201-069-1

    As an accredited Citric Acid Anhydrous factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White, sealed 25 kg polyethylene-lined kraft paper bag labeled "Citric Acid Anhydrous," with hazard symbols, manufacturer information, and batch number.
    Container Loading (20′ FCL) Citric Acid Anhydrous is shipped in 25kg bags, 20′ FCL capacity holds approximately 20-22 metric tons, loaded on pallets.
    Shipping Citric Acid Anhydrous is shipped in tightly sealed, moisture-resistant containers such as fiber drums or plastic bags to prevent clumping and contamination. Packages are clearly labeled, handled with care, and stored in cool, dry environments. Compliance with local, national, and international transport regulations ensures safe and secure delivery.
    Storage Citric Acid Anhydrous should be stored in a tightly closed container in a cool, dry, well-ventilated area away from moisture and incompatible substances. Protect it from direct sunlight, heat sources, and acids or oxidizing agents. Keep the storage area clean, labeled, and secure to prevent contamination or accidental mixing with other chemicals. Always follow relevant safety guidelines when handling and storing.
    Shelf Life Citric Acid Anhydrous typically has a shelf life of 3 years when stored in a cool, dry, airtight, and light-protected container.
    Application of Citric Acid Anhydrous

    Purity 99.8%: Citric Acid Anhydrous with 99.8% purity is used in pharmaceutical formulations, where it ensures high-standard buffering and chelating performance.

    Particle Size <100 µm: Citric Acid Anhydrous with particle size less than 100 µm is used in powder beverage mixes, where it promotes rapid dissolution and homogeneous flavor distribution.

    Melting Point 153°C: Citric Acid Anhydrous with a melting point of 153°C is utilized in food processing, where it provides stable acidification during thermal treatment.

    Moisture Content <0.5%: Citric Acid Anhydrous with moisture content below 0.5% is applied in effervescent tablet manufacturing, where it minimizes premature reaction and extends product shelf life.

    Stability Temperature up to 40°C: Citric Acid Anhydrous stable up to 40°C is implemented in cosmetic formulations, where it maintains consistent pH regulation and product integrity during storage.

    Heavy Metal Content <5 ppm: Citric Acid Anhydrous with heavy metal content lower than 5 ppm is used in infant food production, where it reduces toxicological risks and meets safety standards.

    Assay ≥99.5%: Citric Acid Anhydrous with assay of at least 99.5% is applied in dairy processing, where it ensures reliable acidification for controlled curd formation.

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    Certification & Compliance
    More Introduction

    Citric Acid Anhydrous: Everyday Chemistry with Purpose

    From Our Plant Floor to Your Business: A Story About Citric Acid Anhydrous

    At our manufacturing site, citric acid anhydrous represents more than just another white crystalline powder on the production line. Every day, teams of operators, engineers, maintenance crews, and lab technicians shape raw materials and monitor reactions that transform corn-based glucose into a product relied on across the world. Years of refining and optimizing fermentation, crystallization, and drying bring out the best possible purity and consistency. This isn’t just procedure—it’s a constant commitment to delivering something safe, dependable, and precisely what our customers expect, batch after batch.

    The Substance in Focus: What Makes Citric Acid Anhydrous Distinct

    Citric acid shows up in almost every food pantry, pharmacy shelf, and cleaning cabinet. Its role as a natural acidulant, preservative, and chelating agent supports huge markets. Anhydrous citric acid, specifically, contains no water molecules within its crystal structure. This matters on our shop floor: once the wet cake leaves our centrifuges, thorough drying in carefully controlled environments ensures a moisture content below 0.5%. Our staff track this detail as closely as other characteristics—like color, solubility, or particle size—because moisture changes everything. Even a small rise in water content nudges our product over to the monohydrate form, which behaves differently in end-use.

    In daily production, we classify batches using industry standards. The anhydrous grade we deliver typically tests above 99.5% content (calculated on a dry basis), meets FCC/E330 and food additive requirements, and passes rigorous trace metal analysis. Over years in operation, our team learned how much customers scrutinize these numbers. Pharmacies, beverage bottlers, confectioners, and tablet manufacturers count on a substance that looks, pours, dissolves, and reacts the same way every time. Grit size, flow ability, and even dusting all get regular review, because shipping a clumpy or slow-dissolving powder causes real disruption. Our model grades cover fine and granular—each with a specific purpose and customer base.

    Practical Value: Why Industry Chooses Anhydrous Over Monohydrate

    Questions about all kinds of citric acid come up from technical teams and procurement managers. The “anhydrous” label often prompts a practical discussion. Monohydrate crystals carry about 8-9% water, which can turn sticky and clog mixing systems if conditions aren’t controlled. Dry-blending lines, solid dosage pharmaceuticals, and specialty food applications prefer the predictable nature of the water-free form. In places where storage humidity varies or long shelf life is needed, anhydrous makes life easier. Over years supplying to global clients, we’ve watched how this preference led to tweaks in packaging—denser, moisture-barrier bags—and careful attention to bulk density so that mixers dose efficiently per kilogram.

    Our team interacts with makers of effervescent powder drink mixes, detergent tablets, electroplating fluids, and health supplements. Their feedback always circles back to stable performance—citric acid anhydrous dissolves fast, resists caking, and blends smoothly with other powder ingredients. People working on the manufacturing floor don’t want to troubleshoot inconsistent ingredient behavior; operators watching pilot lines or full-scale blenders notice quickly if something feels off. Keeping a tight spec on flow and size avoids interruptions.

    Using It: What Decades in Manufacturing Teach About Application

    Food and beverage plants need reliably tart flavor, crisp acidity, or a solid pH buffer without introducing off-notes or variable particle sizes. Our food-grade anhydrous citric acid drops straight into soft drinks, fruit preserves, jams, and processed cheese blocks, doing the precise job blunt acids like phosphoric or malic cannot. Granular grades serve commercial kitchens and confectionery lines needing fast-dissolving, clear syrups. Pharma companies trust our powder to act as a disintegrant and taste-masking agent; on our own supply chain, we get flagged if even trace contaminants or foreign colors show up.

    Detergent manufacturers appreciate how anhydrous citric acid acts as a builder, scale solvent, and carbonate softener, without the sludge that monohydrate sometimes triggers under humid storage. Homecare lines use it to break apart limescale, polish metals, and balance pH in eco-friendly cleaners. Our years of operational knowledge tell us that crystal structure, flow, particle size, and moisture all matter just as much for blend uniformity as the lab-spec test results.

    Water treatment plants call out for citric acid anhydrous in filter washing and system de-scaling, thanks to its predictable chelation of calcium and iron ions. This experience over the years taught us not only to control for heavy metals, but to guarantee dust is minimized (for worker safety and smooth dosing). Our R&D teams walked hand in hand with customers, adjusting grades for automatic feeders and pneumatic delivery.

    Safety and Handling: Doing Things Right on the Plant Floor

    Producing food-safe acids involves discipline from start to finish. Our staff manage confined space rules, personal protective equipment, real-time dust collection, and trace spill control. Food and pharmaceutical clients push us to maintain documentation and traceability. Our lot identification procedures, packaging tracebacks, and certificates of analysis took years to establish and audit. These aren’t paperwork exercises—they build trust. Anhydrous forms, being a fine powder, attract extra attention for dust hazards; good ventilation and clean room practices keep our staff and customers safe.

    Years of conversations with safety teams, site visits from food regulators, and requests from packaging engineers stressed the value of robust tamper-evidence. We swapped to heavy-duty, double-sealed Kraft paper bags with polyethylene liners, and every warehouse handoff checks for tears or exposure indicators. Temperature and humidity controls keep anhydrous batches dry from our gate to yours.

    Citric Acid’s Place in Clean Label and Eco-Friendly Era

    Modern supply chains challenge every ingredient with questions about transparency, sustainability, and environmental impact. Our location sources non-GMO corn for fermentation, and plant managers invest in water recycling and highly efficient bio-treatment before effluent leaves our site. Compared to older chemical routes, microbial fermentation cuts waste and supports a renewable path. Customers increasingly want paperwork on origin and proof that social and environmental policies are maintained.

    Clean label trends favor citric acid since it derives from plant sources, appears as a familiar ingredient, and boasts a favorable safety track. Decades of listing in the Codex Alimentarius and GRAS status in major jurisdictions simplified adoption for global producers. This is a far cry from the regulatory uncertainty or consumer skepticism attached to more obscure or synthetic acidulants.

    Lab Testing and Traceability: Building Reliability from the Ground Up

    Our labs test every lot for identity, assay, packaging integrity, heavy metals, and microbial counts. GMP-trained staff follow written procedures, calibration schedules, and method validation. Each shift in our plant learns quickly: small slips in drying or filtration can trigger off-spec results, requiring costly reprocessing or disposal. This vigilance, learned firsthand, builds the trust that goes into every purchase order we fill. Tracking every shipment, down to the individual lot sealed in palletized bags, plays a big part in recalls or troubleshooting with customers.

    This deep focus means that even applications outside food and pharma—such as photographic chemicals, oilfield acid jobs, or industrial solvents—benefit from the same care in compounding and QA. Everything stays visible, batch by batch, from sugar tank to final bag. It took real experience to understand this couldn’t be an afterthought.

    Comparing Anhydrous to Other Citric Acid Types: Real-World Tradeoffs

    In any conversation about citric acid, the form matters. Anhydrous and monohydrate both fill roles, but distinct differences sit at the intersection of production logistics and final product behavior. The anhydrous powder flows freely, stores more densely, and slips through dust collectors and packaging scoops without clumping, as long as humidity stays in check. The monohydrate form appeals to some powder blends and easier tableting, but the risk of moisture pick-up nudges most industrial buyers away unless a specific use calls for it.

    On our line, switching between forms means changing dryer times, air flows, storage bins, and operator checks. Even a small jump in relative humidity inside a storage silo can push a batch off-spec. Staffing learned, years back, to train eyes and hands not just on lab reports—but on powder feel, flow, and pour. If a tablet press or blending tank operator sees caking or slow dissolution, the eventual fix may trace all the way back to drying ovens or packing lines.

    Global Reach—Local Adaptation: Meeting Customer Needs Over Continents

    Shipping citric acid anhydrous to different continents introduces more than just time zone headaches. Ocean freight, wide climate variation, and changing import rules forced us to rethink everything from pallet wrap to liner selection. European confectioners want sharper granulation for certain candies, while southeast Asian beverage lines request extra-fine powder for instant blending. Our packaging teams run shelf-life trials under high humidity, then send samples and answer technical questionnaires to prove our material hangs tough under extreme conditions.

    This feedback loop, from dock delivery teams to multinational processors, has shaped how we improve and adjust the product. The voice of a customer in Brazil asking for anti-caking treatments, or a German QA lab cross-checking our heavy metal results against stricter local thresholds, pushed us to keep standards higher than mere compliance. That dialogue pays off, as shipments arrive ready for use whether in a Chicago bakery, a Mumbai nutraceutical plant, or an Istanbul beverage bottler.

    Practical Challenges: What It Really Takes to Maintain Quality

    Keeping citric acid anhydrous on-spec isn’t a matter of a single decision, but a thousand small adjustments tracked every shift. Our operators log inlet and exhaust temperatures, vibration patterns on packaging machines, drum speeds, and even the sound of dryers cycling. Alerts for off-spec particle size or a hint of stuck powder in a chute drive immediate fixes, not theoretical optimizations. This hands-on approach works because everyone sees how small misses compound downstream.

    One batch with more than 0.5% moisture can spark clumping on a high-speed tablet press or block a dosing hopper, triggering production downtime. Funky odors, even below detection limits, end up as rejected shipments—a lesson learned the hard way, as international buyers inspect every detail. Training and retaining experienced staff delivers more dividends than any automation, although sensor upgrades and real-time monitoring now aid our all-hands culture. Customer complaints, even rare ones, circulate promptly among shift leaders, maintenance, and lab staff until a root cause is found.

    Looking Ahead: New Applications and Ongoing Improvement

    Research teams in food, pharma, and industry seek to push citric acid boundaries. Encapsulation technology allows for controlled release in functional beverages, new surface treatments use it for safe de-scaling, and greener chemical syntheses select it as a more benign catalyst. Collaborations with tech startups and research institutes spur us to trial alternate drying methods and even lower-carbon fermentation routes, driven by the same lean, factory-floor focus that kept us competitive in the past.

    We continue fielding requests for non-GMO certification updates, trace allergen reports, and eco-label compliance. Every year brings fresh regulatory and technical hurdles, which means our approach adapts—never resting on legacy. Regular dialogue with both legacy and emerging customers ensures that our anhydrous citric acid keeps fitting into changing products, stricter standards, and new uses. Teams preparing an industrial blend or fine cider expect a lot of the same reliability: flow, taste, handling, and documented purity.

    Final Thoughts: Building Trust Through Experience-Driven Manufacturing

    Our plant’s experience with citric acid anhydrous shaped our philosophy. Every shift, we face real-world choices: balancing throughput and control, performance and safety, customer need and operational discipline. This ingredient rarely headlines the label, but its real value comes from the hands, eyes, and care applied at every stage. The lessons learned—sometimes from costly slip-ups, more often from quiet, daily successes—drive us to refine processes, respect feedback, and keep quality above all else.

    Choosing citric acid anhydrous means working with an ingredient shaped by years of manufacturing discipline and learning from people who see both sides: science and production, data and application. We aim to keep building that trust, one batch at a time.