Sodium Ascorbate

    • Product Name: Sodium Ascorbate
    • Chemical Name (IUPAC): Sodium (2R)-2-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2H-furan-5-olate
    • CAS No.: 134-03-2
    • Chemical Formula: C6H7NaO6
    • Form/Physical State: Powder
    • Factroy Site: Lingwu, Yinchuan, Ningxia, China
    • Price Inquiry: sales2@liwei-chem.com
    • Manufacturer: Anhui Liwei Chemical Co.,Limited
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    Specifications

    HS Code

    241524

    Chemical Name Sodium Ascorbate
    Molecular Formula C6H7NaO6
    Molar Mass 198.11 g/mol
    Appearance White to slightly yellow crystalline powder
    Solubility In Water Very soluble
    Cas Number 134-03-2
    Ph In Solution Around 7.0-8.0 (5% solution)
    Odor Odorless
    Taste Slightly saline, acidic
    Melting Point Approximately 220°C (decomposes)
    Stability Stable in dry, cool conditions; sensitive to moisture and air
    Storage Temperature 2-8°C
    Uses Antioxidant, food additive (E301), vitamin C supplement
    Toxicity Low toxicity
    Synonyms Sodium L-ascorbate, Vitamin C sodium salt

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

    Packing & Storage
    Packing Sodium Ascorbate is packaged in a sealed, food-grade 1 kg plastic bag, labeled with product details, batch number, and safety instructions.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Sodium Ascorbate typically holds about 13–14 metric tons, packed in 25kg bags on pallets for safe transport.
    Shipping Sodium Ascorbate is shipped in tightly sealed, corrosion-resistant containers to protect from moisture and light. Packages are clearly labeled and comply with applicable transport regulations. The chemical is usually shipped as a powder or crystalline solid, with temperature and humidity controls as needed to preserve stability and quality during transit.
    Storage Sodium ascorbate should be stored in a tightly closed container, protected from light, moisture, and sources of heat. Keep in a cool, dry, well-ventilated area, away from incompatible substances such as strong oxidizers and acids. Storage at room temperature is recommended. Proper labeling and secondary containment are advised to prevent accidental contamination or spills.
    Shelf Life Sodium Ascorbate typically has a shelf life of 2 to 3 years when stored sealed, cool, dry, and protected from light.
    Application of Sodium Ascorbate

    Applications of Sodium Ascorbate in Industrial Manufacturing

    Sodium ascorbate supports various industrial manufacturing sectors thanks to its antioxidant, preservative, and reducing agent functions. Our production focuses on consistently high purity, batch traceability, and compliance with regulatory requirements. The following key industries regularly integrate sodium ascorbate in downstream processing to meet quality benchmarks and technical demands.

    1. Food Processing: Cured Meat and Poultry Products

    Manufacturers use sodium ascorbate as a curing accelerator and antioxidant in processed meat and poultry plants. It aids nitrite reduction and color fixation in hams, sausages, frankfurters, bacon, and deli meats manufactured under HACCP control. When used correctly, it minimizes residual nitrite content and supports shelf-life stability. Quality control protocols require precise dosing during brining or emulsification stages; plant engineers often link pumps or feeders to automated batch weighing for consistent performance.

    Industry compliance standards

    • USDA 9 CFR 424.21 (Approved Curing Agents in Meats and Poultry)
    • FDA 21 CFR 182.3731 (GRAS Status)
    • EU Regulation (EC) No 1333/2008 (Additive E301 Use in Foods)
    • GB 2760 (Chinese National Food Additive Use Standard)

    Typical usage ratio

    • 300–550 ppm (calculated as sodium ascorbate per finished product mass)
    • Amount fine-tuned based on meat type, formulation sodium level, and local maximum residue requirements

    Downstream process integration

    • Added to brine or cure premix before injection or tumbling
    • Uniformly dispersed during chopping, grinding, or emulsification to ensure direct contact with nitrite
    • Critical control point records trace addition times, batch numbers, and in-line QC checks

    Final product types

    • Cooked and smoked sausages
    • Bacon, ham, and reformed meat loaves
    • Poultry rolls and cured turkey
    • Ready-to-eat sliced deli meats

    2. Pharmaceuticals: Injectable Solutions and Vitamin Preparations

    Pharmaceutical manufacturers rely on sodium ascorbate as a buffered vitamin C source in parenteral formulations and oral medicines. Its controlled pH and high solubility allow precise formulation of multi-ingredient injectable products and effervescent vitamin tablets in GMP facilities. Pharmacopeial quality and validated sterility processes maintain drug safety, with in-process controls for vitamin C potency and pH stability through lyophilization, blending, and fill-finish operations.

    Industry compliance standards

    • USP-NF Monograph (Sodium Ascorbate)
    • EP Monograph (Sodium Ascorbate 01/2016:0964)
    • ICH Q7 GMP for Active Pharmaceutical Ingredients
    • China Pharmacopoeia (ChP) Monograph

    Typical usage ratio

    • 50–100 mg/mL in injectable solutions (as active principle)
    • 100–1000 mg per oral dosage unit (as bulk source or in combination)

    Downstream process integration

    • Dissolved in WFI (water for injection) during compounding of parental solutions
    • Blended with excipients in high-shear granulation for tablet and powder formulation
    • Added just-in-time before sterile filtration to maintain vitamin C activity

    Final product types

    • Injectable ascorbate ampoules and vials
    • High-dose vitamin C injection bags
    • Effervescent vitamin tablets and powders
    • Multivitamin syrups and soft gels

    3. Beverage Industry: Non-Alcoholic Functional Drinks

    Formulators in the beverage sector employ sodium ascorbate to deliver vitamin C enrichment and inhibit oxidative flavor loss in fruit juices, sport drinks, and dairy-based beverages. Its neutral salt form reduces interactive off-tastes and enables higher vitamin C loading than ascorbic acid alone. Dosing strictly follows country-specific food additive regulations and is sensitive to beverage pH, protein content, and storage requirements. Inline mixing and post-pasteurization sampling maintain homogeneity.

    Industry compliance standards

    • FDA 21 CFR 182.3731 (Vitamin C-enriched beverages)
    • EU Regulation (EC) No 1925/2006 (Nutrient Additions to Foods)
    • GB 14880-2012 (Food Nutrition Fortification Compound Standard)
    • Codex Alimentarius (CAC/GL 9-1987, General Principles for Addition of Essential Nutrients to Foods)

    Typical usage ratio

    • 75–200 mg/L for standard vitamin C enrichment claims
    • Adjustments for low-pH beverages or heat-treated shelf-stable drinks

    Downstream process integration

    • Metered dosing into blending tanks immediately after base ingredient dissolution
    • Quality checks for retention following UHT or pasteurization
    • Checks for clarity and absence of precipitation in final product bottles

    Final product types

    • Vitamin C-fortified fruit juices
    • Dairy beverage vitamin blends
    • Ready-to-drink nutritional sport beverages
    • Meal replacement shakes

    4. Cosmetics and Personal Care: Anti-Aging Creams and Serums

    Industrial cosmetics manufacturers incorporate sodium ascorbate for its gentle antioxidative and skin-brightening properties in topical emulsions, gels, and serums. Compared with ascorbic acid, it offers improved stability in aqueous systems and lower irritation risks, enabling higher loadings in formulations aimed at sensitive or mature skin. GMP-compliant manufacturers apply rigorous in-process color and microbial controls during batching, emulsification, and sterile packaging, aligning with ISO and FDA cosmetic safety standards.

    Industry compliance standards

    • EU Cosmetics Regulation (EC) No 1223/2009
    • US FDA 21 CFR 700 Subpart B
    • China National Standard GB/T 29665 (Cosmetic Good Manufacturing Practice)
    • ISO 22716 (Cosmetics GMP)

    Typical usage ratio

    • 0.5–3.0%, adjusted for pH, viscosity, and overall formula content

    Downstream process integration

    • Solubilized in the aqueous phase during emulsion preparation, before homogenization
    • QC validates color retention and pH stability post batch cooling
    • Filler integrates ingredient at final bulk holding, prior to packaging into airless pumps or tubes

    Final product types

    • Anti-aging and antioxidant face creams
    • Multi-vitamin serums
    • Brightening skin emulsions
    • High-stability vitamin C gels

    5. Animal Nutrition: Vitamin Premixes for Feed

    The animal feed industry utilizes sodium ascorbate as a stable vitamin C source in feed premixes for aquaculture, poultry, and pet food. This additive counters oxidative degradation of nutrients in high-fat and extruded feeds. Compliance requires full documentation of additive origin, batch analysis, and separation from direct antibiotic contact. Usage levels depend on animal species, stage of life, and regulatory maximums; microencapsulation and uniform blending during pre-mix compounding are critical for efficacy.

    Industry compliance standards

    • EU Regulation (EC) No 1831/2003 (Feed Additives for Animal Nutrition)
    • AAFCO Official Publication (United States)
    • China Feed Additive Regulation GB 7300
    • FAMI-QS (Feed Additive and Premixture Quality System)

    Typical usage ratio

    • 40–150 mg/kg (ppm) in final animal feed, by species and growth phase
    • Adjust based on feed processing (extruded, pelleted, mash) and target vitamin stability

    Downstream process integration

    • Weighing and pre-mixing for vitamin mineral premixtures
    • Micro-dispensing in batch blenders before extrusion or pelleting
    • Encapsulation for stability in high-heat feed processing lines

    Final product types

    • Aquaculture diets for fish and shrimp
    • Poultry, broiler and layer feeds
    • Pet food kibbles and wet meals
    • Livestock vitamin mineral premixes

    6. Industrial Photography and Electronics: Anti-Oxidant Agent in Processing Solutions

    Electronics and traditional photographic film laboratories apply sodium ascorbate as an anti-oxidant additive in developer and fixer solutions to prevent degradation of imaging chemicals. Strict adherence to purity profiles and in-situ filtration prevents spot formation and streaking. The chemical enters liquid tanks during solution make-up, often under controlled temperature and in nitrogen-purged environments. Finished processing baths must meet specific shelf life and activity constraints, verified by titration and spectrophotometry.

    Industry compliance standards

    • RoHS (Restriction of Hazardous Substances, applicable for electronics manufacturing)
    • ISO 18911 (Imaging materials – Processed silver-gelatin type black-and-white films – Storage practices)
    • Producer-specific developer stability protocols
    • QC systems for analytical grade chemicals

    Typical usage ratio

    • 1–5 g/L for photographic developer chemistry
    • 2–15 g/L in anti-oxidant stabilization baths for PCB and imaging
    • Exact dosing depends on bath turnover rate and solution volume

    Downstream process integration

    • Weighed and dissolved directly in solution preparation tank
    • Filtration prior to filling processor machines or manual trays
    • Maintained under cold storage for batch longevity

    Final product types

    • Photographic film developer concentrates
    • PCB processing baths and developer solutions
    • Printed circuit cleaning solutions
    • Archival photo and film processing chemicals

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    Certification & Compliance
    More Introduction

    Sodium Ascorbate: Direct from the Manufacturer’s Floor

    Real Experience with Sodium Ascorbate

    Sodium ascorbate has stood at the heart of our production lines for years. For those of us working in the chemical manufacturing sector, this compound is more than a technical listing—it’s part of daily routines and crucial choices. Long after the labs close for the night, shipments move out and raw materials come in, the familiarity with every sack and drum remains. Many customers ask about what sets our sodium ascorbate apart from tableted vitamin C found in pharmacies or the closer cousin, ascorbic acid. We watch these orders leave the loading bay and know they’re bound for food processors, vitamin bottlers, and sometimes high-purity blend facilities, each with their strict requirements for trace metals, particle sizes, and solubility.

    The Model and What’s Inside

    We manufacture sodium ascorbate under controlled conditions, keeping moisture, temperature, and pH where experience shows best outcomes. With our most requested grade reaching an assay of no less than 99.0% by dry basis, the specification stays tight. You won’t find high levels of heavy metals or residue in the final lot. Each batch runs through multiple filtration and purification steps until the loose, crystalline powder reaches the right purity. Those involved in blending for nutritional supplements or injection products rely heavily on consistent sodium content and proper ascorbatation—something we monitor closely throughout the process with in-plant chromatography and titration.

    To some, product specifications might seem dry details, but customers who use this material in large-scale synthesis or food fortification see daily why specification matters. Our sodium ascorbate typically runs in the range of 0.2% maximum moisture, provides near-neutral pH in a 5% solution (usually falling between 7.0 and 8.0), and leaves minimal chloride behind. Purity over 99% means fewer side reactions and steadier dosage in formulations.

    Quality is a Full-Time Job

    Years ago, sodium ascorbate was blended in small kettles and supplied primarily to a few local food supplement bottlers. Over time, quality needs grew with demands for regulatory compliance, cleaner labels, and ever-increasing batch sizes. The growth of high-speed packaging at customer sites put new pressure on us to reduce clumping and improve flow. Our teams shifted to using controlled humidity packaging rooms, and we upgraded our blending and sieving equipment, which keeps our sodium ascorbate dry and free-flowing—important when even a little caking can throw off automated dosing in modern production lines. Batch consistency isn’t just a target metric—it’s the difference between smooth running lines and a halted plant.

    We never treat quality control as an afterthought. Every lot gets checked for lead, arsenic, and other metals, even when the risk stays low. Experience has taught us trace contaminations can slip in at any junction if vigilance lapses—raw material inbound, process vessel maintenance, packaging changes. Our people look for these things out of habit now. These minor details, which might seem excessive to an outsider, translate to safer finished goods for every customer down the chain.

    Sodium Ascorbate’s Place in Industry

    Our sodium ascorbate carries out its job quietly in formulations, but the end uses stretch wide. One major use remains as a food antioxidant. Processed meats, canned vegetables, and fruit products all use sodium ascorbate to slow color loss and oxidation. Some customers found a regular need to switch from ascorbic acid to sodium ascorbate when aiming for lower acidity. This change brings its own challenges—like adjusting the rest of a recipe to accommodate a less sour profile and dealing with sodium labeling for markets where consumers watch for salt content. We have taken part in these transition processes, providing technical guidance and pilot-lot samples so food technologists find the correct balance before re-tooling production.

    Pharmaceutical and nutraceutical producers treat sodium ascorbate as a crucial ingredient for certain tablet or solution formats, especially for those avoiding acidic taste or stomach irritation common with ascorbic acid supplements. Our technical teams support customers shifting formulations from one vitamin C source to another, explaining the subtleties in electromagnetic moisture analysis for shelf-stability predictions or the effects of trace impurities on product color.

    Animal nutritionists request our sodium ascorbate for fortification in pet foods, growth boosters for aquaculture feed, and other veterinary formulations. Over time, we’ve fielded numerous questions on the stability of sodium ascorbate in high-temperature extrusion conditions—a common concern. Industrial users, such as those in photographic processing and certain specialty chemical synthesis, rely on sodium ascorbate for its reliable reducing action and mild reactivity compared to pure ascorbic acid.

    Hands-On Challenges on the Factory Floor

    It isn’t rare for a batch to draw our attention partway through production. Raw material quality can shift in subtle ways as suppliers change harvest seasons or extraction methods. On one memorable occasion, a new lot of monosodium salt carried hints of discoloration visible only after the drying step. A quick team huddle and sample retesting led us to identify a minor impurity, caught before reaching downstream filling lines. Getting hands dirty in the plant floor, talking with shift-workers and maintenance crew, often solves a quality blip faster than sitting in the boardroom.

    Customers rarely see the battles fought behind the scenes to prevent ‘off’ odors or flaky powder. We have learned that thorough air filtration and using stainless steel in high-wear sections of the line cuts down on cross-contamination. Every time a plant visitor tours the facility, we show not only glistening new centrifuges but also our maintenance logs, because neglect creeps up quickly in fine chemical production. Routine diligence—not flash-in-the-pan investments—holds up reliability year after year.

    Why Sodium Ascorbate Over Other Vitamin C Sources?

    People often seek out sodium ascorbate instead of ascorbic acid for reasons that go well beyond chemistry textbooks. In the world outside pilot plants and formulation labs, real constraints like taste, gastric comfort, solubility in water, and regulatory sodium limits matter just as much as purity numbers. Our experience has shown the neutral pH of sodium ascorbate helps sidestep acidulant taste and stomach discomfort—a big deal in chewable tablets and drink mixes.

    When humid summer air rolls in and ordinary ascorbic acid turns clumpy, sodium ascorbate stays looser for longer stretches, which supports handling on high-speed lines. For technical teams responsible for end product clarity, like those bottling transparent vitamin drinks, sodium ascorbate supplies less cloudiness even at high fortification levels.

    Another reason behind customer preference: ascorbic acid can accelerate corrosion in certain equipment unless neutralized. Sodium ascorbate works gently and extends equipment life—an underappreciated factor in factories operating around the clock. In our own lines, we saw mixer seals and feeding screws last far longer when dosing sodium ascorbate, saving both headache and replacement costs.

    Meeting Varied Expectations Beyond Just ‘White Powder’

    One lesson stands above the rest after decades supplying both global multinationals and niche brand pilots—no two requests ever play out the same way. Some clients expect sodium ascorbate with fine mesh for even dispersion in chewable tablets. Others need coarse, non-dusting material for animal feed production, where airborne dust both wastes product and frustrates operators.

    Modern supplement producers expect more than technical compliance. They bring non-GMO, allergen-free, and traceability requirements, plus demands for halal, kosher, and sometimes even organic certifications. We work steadily to audit upstream providers and tweak documentation so every batch carries traceability back to harvest, knowing that new regulations or customer audits might appear at any point. Routine mock recalls keep our team sharp.

    Allergens and cross-contaminants grow in importance with each passing year. We dedicate lines and use color-coded scoops and bins, updating cleaning methods every audit cycle. Clean labels mean hands-on vigilance from start to finish—not chasing compliance paperwork but actually swabbing surfaces and running test batches until results prove out.

    Sometimes what separates sodium ascorbate products is not the chemistry, but what gets left out. Food manufacturers now routinely question about gluten, soy, and animal residue. Because we see so many distinct processing aids and filter media in use across the industry, certifying exclusion remains a hands-on undertaking, not an assumption. These requests drive investment in new analytical equipment and more diligent supplier vetting, but over the long term, this careful control builds trust with customers.

    Packaging and Storage Reflect Industry Realities

    Packaging and storage never fade into the background at our facility. Sodium ascorbate will react with ambient humidity, so we fill product under dry air in high-barrier packaging. After a few missed shipments taught us hard lessons, we replaced old double-layer kraft systems with better laminates. Our packaging section regularly inspects seals before shipping, particularly in rainy months when poor seals risk moisture ingress.

    We have seen customers inadvertently store sodium ascorbate near strong-smelling products, only for the final material to pick up odd notes. Years in the field taught us the importance of handling sodium ascorbate as a slightly sensitive compound, not something to toss in a warehouse corner. Because sodium ascorbate oxidizes faster than it appears, every hour of unnecessary exposure during transit chips away at shelf life.

    Seasoned logistics teams check lot numbers, rotate stock routinely, and track humidity logs. This attention keeps rework and waste very low. Our own losses from mishandling dropped sharply after we started training packers about the real downstream cost of spoilage. We know wasted time and product hits quality scores for both us and customers, so tightening this up remains win-win.

    Changes, Opportunities, and Growing Pains

    The supply chain for sodium ascorbate has shifted fast, especially during pandemic disruptions and inflationary periods. Prices of raw ascorbic acid—the parent molecule—swing as global demand and harvest yields shift. We have to plan raw material procurement further in advance than in the past, weighing not just price but also resilience against supply disruptions.

    Customers rarely see these behind-the-scenes negotiations, but the effect hits everyone when spot shortages or price swings ripple through vitamin C markets. By investing in long-term supply network agreements rather than relying solely on the lowest monthly bid, we weather shocks better and keep output stable. Sometimes this means holding extra inventory during surplus periods, and at other times, working late to qualify new suppliers if traditional sources falter. We learned not to over-promise during tight times—honesty saves future relationships.

    Growth rarely comes without pains. Expanding demand from developing regions and new market segments, like plant-based product lines, stress both supply planning and plant capacity. We constantly look for ways to debottleneck critical process steps, testing new filter aids, reviewing old CIP cycles, and exploring more energy-efficient drying options. What used to suffice five years ago won’t keep customers happy tomorrow. Keeping up with industry forums and participating in technical conferences helps our engineers learn from others in the field and bring fresh insight back to production.

    Innovation and Product Development: Learning from End Users

    Some of our proudest breakthroughs in sodium ascorbate manufacturing didn’t come from consultants or textbooks—they came when a food technologist or a line supervisor pointed out a recurring challenge. Running a vitamin-enriched drink line, one customer flagged the tendency of ordinary sodium ascorbate to cause sediment in clear beverages, unlike more expensive patented formulations. By digging into these reports, our R&D team reformulated screening procedures, tightened up drying parameters, and fine-tuned the crystal structure. The result: a powdered form that remains clear in drink solutions and matches the clarity of high-end products.

    Every year a handful of customers request customized grades for process improvements—either to gain better compressibility, improve flow from bulk bins, or target different bulk densities to meet new packaging sizes. Open communication between production and the sales support team closes the loop, turning feedback into practical modifications. At every turn, constant iteration wins over one-size-fits-all solutions. Some newer customers, unfamiliar with technical intricacies, need detailed walkthroughs on how sodium ascorbate interacts under roasting, high-pressure pasteurization, or with particular colorants. Sharing know-how drawn from batches that went sideways—alongside those that met spec—builds long-term trust.

    Our collaborations with academic labs and food research institutes keep us honest and up-to-date. Real-world stress testing in customer pilot plants, paired with in-house analytical tools, often uncovers flaws missed in controlled settings. These partnerships never just run on paper—they demand hands-on, boots-in-the-batchroom engagement.

    Environmental Responsibility and Safety: True Day-to-Day Practice

    Modern sodium ascorbate production draws increasing attention to waste management, energy use, and chemical stewardship. As part of our daily operations, we commit to minimizing runoff from cleaning cycles, recycling suitable process water, and switching over to more energy-efficient dryers and chillers. Our investments here don’t just satisfy local regulators—they reduce costs and cut down on surprises. Several years ago, investments in solvent-free filtration and improved recovery systems delivered both immediate savings and better neighborhood relations, thanks to sharper reductions in plant odors.

    Safety is far more than a poster slogan here. Operators on the production line know how to handle sodium ascorbate without risking dust and eye irritation—lessons learned the hard way in early years. Training loops extend from forklift drivers to shipping office staff, ensuring no link falls out of sequence. Annual outside audits continue to highlight areas needing improvement, and our staff responds with practical steps—switching to different personal protection equipment or rotating jobs to reduce ergonomic risks. These incremental, sometimes overlooked changes, keep incident rates steadily dropping year after year.

    Future Growth and Shared Success

    What keeps our sodium ascorbate production relevant isn’t just technical details—it’s shared experience and ongoing improvement. We match process know-how with open dialogue, so both our teams and customers navigate transitions smoothly. Today’s sodium ascorbate customer shops not only for a product but for reliability, compliance, and support across challenges yet to come.

    The only way we move forward is by listening: operators catching an off-odor; purchasing checking for shifts in supplier delivery times; quality control noticing upticks in elemental impurities; and engineers proposing new dryer settings to handle a higher-humidity lot. These experiences fuel both better sodium ascorbate and a more robust production environment.

    Staying close to the ground—remaining involved in the process, answering customer concerns directly, using feedback, and tackling upcoming regulatory shifts—keeps us sharp. After years on the factory floor and countless tons shipped out, we know that sodium ascorbate is much more than what’s printed on a certificate of analysis. It’s the sum of hundreds of daily choices, each shaping the material that arrives at customer doors, ready for use in products eaten, drunk, and trusted by millions.