Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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Trans-Aconitic Acid

    • Product Name Trans-Aconitic Acid
    • Alias TRANS-ACONITATE
    • Einecs 221-091-5
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    247665

    Cas Number 584-19-0
    Iupac Name E-Prop-2-ene-1,2,3-tricarboxylic acid
    Molecular Formula C6H6O6
    Molecular Weight 174.11 g/mol
    Appearance White to off-white crystalline powder
    Melting Point 190-195°C
    Solubility In Water Slightly soluble
    Boiling Point Decomposes before boiling
    Pka Values 2.83, 3.30, 4.46
    Density 1.71 g/cm³
    Synonyms trans-1,2,3-Propenetricarboxylic acid, trans-Aconitate
    Pubchem Cid 11539

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

    Packing & Storage
    Packing Trans-Aconitic Acid is packaged in a 500g sealed amber glass bottle with a tamper-evident cap, labeled with safety information.
    Shipping Trans-Aconitic Acid is typically shipped as a solid or in solution, in tightly sealed containers to prevent moisture absorption and contamination. Packaging complies with safety regulations for chemicals. It is transported by road, air, or sea under standard temperature conditions, with labeling detailing its chemical identity and hazard information, if applicable.
    Storage Trans-Aconitic Acid should be stored in a tightly sealed container, away from moisture, heat, and direct sunlight. Keep it in a cool, dry, and well-ventilated area, preferably at room temperature. Avoid storing near incompatible substances such as strong oxidizers. Ensure containers are clearly labeled and protected from physical damage to prevent contamination and maintain chemical stability.
    Application of Trans-Aconitic Acid

    Applications of Trans-Aconitic Acid in Industrial Manufacturing

    Trans-Aconitic Acid, produced on an industrial scale, serves as a functional intermediate and additive across several established manufacturing sectors. Our downstream customers use this ingredient for specific chemical properties, defined reactivity, and regulatory-approved formulations. Below, we detail main B2B application channels, breaking down compliance, dosing, process steps, and finished product categories based on current industrial adoption.

    1. Food and Beverage Acidulants

    Trans-Aconitic Acid functions as an acidifier and pH regulator in juice concentrates, sports drinks, and processed fruit preparations, valued for its natural origin and mild tartness. Formulators apply it where lactic or citric profiles do not suit the matrix or flavor. Quality teams must verify food-grade purity and traceability in ingredient disclosure according to local markets. Manufacturers monitor dose adjustment based on pH targets, processing temperature, and interaction with other acids or preservatives in final blends.

    Industry compliance standards

    • Codex Alimentarius General Standard for Food Additives
    • GB 2760-2023 (China Food Additives)
    • 21 CFR 184.1001 (US FDA Food Additives Permitted for Direct Addition to Food)
    • EU Regulation (EC) No 1333/2008 on Food Additives

    Typical usage ratio

    • 0.05% to 0.4% by weight in beverage premixes
    • 0.05% to 0.2% in jams, jellies, and fruit-based confections
    • Dose varies with target pH (most users aim for pH 3.8 to 4.2) and flavor profile
    • Adjustments required depending on local regulatory limits for organic acids

    Downstream process integration

    • Inline dosing into blending tanks post-pasteurization
    • Dry blending with other acidulants for powdered drink preparations
    • Controlled addition during fruit pulp concentration to minimize flavor loss
    • QC sampling for titratable acidity pre-filling

    Final product types

    • RTD fruit juice beverages
    • Electrolyte sports drinks
    • Fruit-flavored syrups and sauces
    • Processed jams and jellies

    2. Biodegradable Plasticizers in Biopolymer Manufacturing

    Polymer producers use trans-aconitic acid as a reactive monomer and plasticizer in polyesters and bioplastics manufacturing, leveraging its tribasic structure for crosslinking and flexibilization. The molecule introduces biodegradability and fine-tunes polymer glass transition temperatures. Plants must ensure full compliance with regulations governing food-contact materials and compostability. Technical teams optimize the ratio based on chain length distribution, mechanical performance, and processing parameters such as extrusion or injection molding.

    Industry compliance standards

    • EN 13432 (Compostability requirements for packaging)
    • FDA Title 21 CFR 177.1630 for polyethylene terephthalate copolymers
    • ASTM D6400 for Biodegradable Plastics
    • EU 10/2011 (Plastic Materials and Articles Regulation)

    Typical usage ratio

    • 3% to 15% as a copolymer monomer in aliphatic polyesters
    • 0.5% to 5% as a plasticizer for short-chain biopolyesters
    • Exact dosing based on targeted molecular weight, flexibility, and end-use standard compliance
    • Compatibility tested with existing polyesterification recipes

    Downstream process integration

    • Direct addition into esterification reactor with primary diols or polyols
    • Co-extrusion downstream blending for modified pellets
    • Polycondensation under nitrogen or vacuum at 180–230°C
    • In-line QC monitoring for acid value, color index, and conversion percentage

    Final product types

    • Biodegradable packaging films
    • Compostable cutlery and trays
    • Disposable biopolymer bags
    • Biobased agricultural mulch films

    3. Chelating Agent in Industrial Water Treatment

    In chemical process water systems, especially in recirculating cooling towers and boilers, trans-aconitic acid acts as a biodegradable chelating agent for calcium, magnesium, and trace metals. Plant managers select this over nitrilotriacetic acid for improved bio-safety and easier wastewater discharge. Water chemistry teams base addition rates on water hardness and loading cycles. Dosing errors can influence scale inhibition performance or result in excessive organic load, requiring precise metering and real-time monitoring.

    Industry compliance standards

    • U.S. EPA Safe Drinking Water Act for indirect potable reuse
    • EU Water Framework Directive (2000/60/EC)
    • ISO 9001:2015 production traceability for treatment chemicals
    • Local discharge permits (COD, BOD limits)

    Typical usage ratio

    • 2–20 ppm in recirculating and process-cooling waters
    • 10–50 ppm in heavy metal removal for industrial effluents
    • Exact requirement depends on total hardness, ionic strength, and competing chelators
    • Adjust in real-time based on scale potential indices (e.g., Langelier Index)

    Downstream process integration

    • Continuous metering via dosing pumps upstream of critical heat exchangers
    • Blending into bulk treatment tanks for batch correction
    • Feedback loop controls with conductivity and turbidity sensors
    • Residue monitoring before post-treatment filtration or discharge

    Final product types

    • Chemical water treatment blends for cooling circuits
    • Industrial scale inhibitors
    • Heavy metal chelating water treatment kits
    • Formulated descaling agents for industrial cleaning

    4. Synthesis Intermediate for Specialty Surfactants

    Specialty chemical manufacturers use trans-aconitic acid as a multifunctional intermediate in producing amphoteric and anionic surfactants, especially those targeting biodegradable and high-performance detergent markets. Reactivity with amines and alcohols allows precise tuning of hydrophilic-lipophilic balance. Regulatory frameworks on surfactant biodegradability and toxicity drive strict batch control. Process engineers adapt molar ratios and reaction sequences to align with target alkyl chains and foaming properties necessary for specified cleaning efficacy.

    Industry compliance standards

    • REACH (EC) No 1907/2006 Annex XVII (Restriction on surfactant biodegradability)
    • OECD 301B guidelines for aerobic biodegradation
    • Regulation (EC) No 648/2004 on Detergents
    • ISO 9001:2015 for traceable synthesis and QA documentation

    Typical usage ratio

    • 5–25 mol% as a dicarboxylate core structure within surfactant molecules
    • 0.5–2 equivalents relative to nucleophiles in amidation or esterification
    • Depends on alkyl chain length and final HLB specification
    • Molar excess sometimes applied for improved conversion in multi-step synthesis

    Downstream process integration

    • Reactive intermediate fed at stage one of multistep surfactant syntheses
    • Stepwise reaction with alkylamines or polyols under vacuum condensation
    • Distillation and solvent stripping for crude purification
    • End-stage blending with co-surfactants downstream

    Final product types

    • Biodegradable amphoteric surfactants for household and I&I cleaning
    • Industrial degreasers and oilfield cleaning agents
    • Low-foam detergents for machine cleaning
    • Specialty emulsifiers for agroformulations

    5. Buffering Agent in Pharmaceutical Formulations

    Pharmaceutical firms use trans-aconitic acid in solid, semi-solid, and liquid dosage forms for pH buffering, taking advantage of its tribasic dissociation in sustained-release and taste-masked preparations. Regulatory scrutiny centers on excipient purity, residual solvents, and endotoxin levels. Quality teams establish batch certifications in line with global pharmacopoeias. R&D formulators adjust buffer blends based on drug stability, solubility, and release profile requirements outlined for each API.

    Industry compliance standards

    • USP–NF Monographs (for excipients)
    • ICH Q3C (Residual Solvents Guideline)
    • EU Pharmacopoeia (Ph. Eur.) standards for purity
    • GMP Production and QC protocols (21 CFR 210/211 and EU GMPs Part 1)

    Typical usage ratio

    • 0.02–0.15% by weight in oral tablets and lozenges
    • 0.02–0.1% in oral liquids and suspensions
    • Final percentage adjusted for target pKa profile and API compatibility
    • Limits imposed based on total organic acids in complex matrix blends

    Downstream process integration

    • Pilot-scale blending with primary flowable excipients pre-compression
    • Granulation or direct compression with active substances
    • Final QC for assay and impurity profiling before packaging
    • Documentation for batch identity and regulatory dossier submission

    Final product types

    • Chewable and dispersible tablets
    • Oral solution syrups for pediatrics
    • Buffered oral suspensions
    • Sustained-release pharmaceutical granules

    6. Corrosion Inhibitor in Ferrous Metal Treatment

    Metal treatment formulators use trans-aconitic acid as an active corrosion inhibitor in water-based cooling fluids and metalworking solutions, benefiting from its ability to passivate iron surfaces and mitigate scale formation. Compliance with environmental discharge and operator safety standards is mandatory. Technical staff determine dosing by corrosion rate testing, system flow volume, and water chemistry. Its integration point is typically prior to filling recirculating fluids in closed or semi-open circuits, optimized via titration to prevent underprotection or pitting risk.

    Industry compliance standards

    • OECD 203 Aquatic Toxicity Test Guidelines
    • REACH Registered Substances List for metalworking chemicals
    • DIN 51360-2 (Testing of water-mixed metalworking fluids)
    • ISO 12944 Corrosion protection of steel structures

    Typical usage ratio

    • 30–150 ppm in cooling water treatment
    • 10–100 ppm in recirculating metalworking fluids
    • Dosing depends on system size, ferrous content, and corrosion risk profile
    • Adjustment based on titrimetric iron and total dissolved solids measurements

    Downstream process integration

    • Premix preparation using water-soluble corrosion inhibitor concentrates
    • Dosing into newly charged or pre-circulated fluid reservoirs
    • In-line corrosion rate monitoring during operation
    • Routine fluid analysis for depletion and replacement planning

    Final product types

    • Ferrous metalworking lubricants
    • Industrial closed-system cooling fluids
    • Passivation solutions for steel rollers and pipes
    • Cooling tower chemical treatments for manufacturing sites
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    Certification & Compliance
    More Introduction

    Trans-Aconitic Acid: A Closer Look from the Manufacturer’s Perspective

    Our Hands-On Approach with Trans-Aconitic Acid

    At our facility, we sometimes get asked what makes Trans-Aconitic Acid worth a closer look compared to other specialty acids. Having spent years refining our process and seeing how industries respond to consistency in quality, we’ve uncovered how each batch of this acid influences customer operations and final products. Trans-Aconitic Acid, with its unique molecular structure featuring a trio of carboxylic acid groups on a six-carbon backbone and a trans-alkene, behaves differently than citric or malic acid in both chemical and functional performance. As manufacturers, our job revolves around producing not just a reagent, but a reliably pure compound able to unlock specific effects from pH control to innovative catalysis or complexation in advanced syntheses.

    One advantage we’ve found lies in its predictable crystallization. In our production line, Trans-Aconitic Acid leaves the reactor in a state that responds well to careful cooling and controlled solvent evaporation. This means that, unlike acids prone to clumping or amorphous transformation, our batches offer sharp, stable crystals, which we find reduce flow and packing issues during end-user processing. A typical batch shows an assay value above 99% HPLC purity, with moisture closely held below 0.5% by weight thanks to our low-temperature drying protocols. We always confirm these parameters in-house and share technical certificates as needed.

    As manufacturers, we continually observe how customers in the food, polymer, and biochemistry sectors draw value from its distinct profile. Its triple acid group provides a stronger binding potential for cations compared to isocitric or succinic acid. That feature matters when formulating chelating agents, biodegradable plasticizers, or environmentally friendly corrosion inhibitors. Clients requiring highly specific metal binding turn to Trans-Aconitic Acid because, in lab and scale-up trials, its performance remains repeatable across temperature ranges where alternatives suffer breakdown or unwanted side reactions.

    From Laboratory Bench to Commercial Production

    Our production journey with Trans-Aconitic Acid begins at the raw source selection—typically canes and other crops rich in tricarboxylic acids. We’ve learned that not all feedstocks give the same yield or byproduct profile, so we apply chromatography and spectral analysis even at early stages. Years of process optimization led us to favor fractional crystallization over solvent-heavy separation steps. Less solvent means lower residue risk and more confidence in declaring batches to be allergen- and contamination-free.

    The acid’s physical characteristics, including a clear melting point around 190°C and excellent water solubility, allow for flexible downstream applications. Industry partners comment on its fast dissolution in aqueous preparations, making pH adjustments smoother compared to monocarboxylic acids. We monitor particle size to ensure granules withstand transit vibrations and blending—but also disperse on demand. We’ve found that particle size around 125 microns reduces dust while still moving through pneumatic systems efficiently.

    Unlike monofunctional acids such as lactic or acetic, Trans-Aconitic Acid features an extra double bond, changing how it interacts with enzymes during biotransformations. Enzyme manufacturers lean toward this compound when fine-tuning reaction rates in specialty fermentations. The extra unsaturation often sparks new research in catalysis. We keep up with these trends, constantly gathering data and feeding it back into our process development.

    Specifications That Matter—Built Through Experience

    We know specifications are not just numbers—they’re the backbone of performance in our customers’ plants. Besides the typical purity, our QC teams monitor elements like ash content, color (using Lovibond or comparative scales), odor, and residue on ignition. Often, a small shift in these parameters can lead to processing headaches down the line for pharmaceutical or nutraceutical users who demand ultra-low contamination thresholds.

    Our batches consistently test below 0.1 ppm for heavy metals, confirmed by ICP-MS screening. This comes from years of iterative purification steps, feedback from partners, and the careful maintenance of stainless-steel reactors. In the rare event a batch tips towards the warning range, we halt shipment for refinement, replacing filtration cartridges or tweaking pH extraction points. The aim is always to offer peace of mind—both for food contact and for challenging synthesis that leaves no room for impurities.

    Most users need transparent documentation for regulatory submissions. Over the years, we’ve built up a resource base of MSDS, COAs, and whitepapers. We regularly provide data to research partners who publish on the molecular interactions of Trans-Aconitic Acid in new formulations, whether as a sequestrant or a precursor for next-generation polymers.

    How Trans-Aconitic Acid Stands Apart From Similar Acids

    Customers sometimes ask how Trans-Aconitic Acid differs in practice from other tricarboxylic acids. In our plant, we’ve run purification lines for both this acid and its close relatives—like citric and isocitric acid. The essential difference lies in the lack of a tertiary alcohol group, giving Trans-Aconitic higher thermal stability and a lower tendency to absorb atmospheric moisture. In dry rooms, you can observe it resisting caking longer than citric or tartaric acid. That makes it easier to store as a fine powder over several months without performance drop-off, even in humid or temperature-variable environments. Users in regions with tropical climates often tell us this property alone justifies choosing our product.

    Its triple dissociation allows for sharper pH response than dicarboxylic acids, and the trans double bond delivers a steric effect noticed during complexation studies. In practice, when used in the production of biodegradable films or ion-exchange resins, this structural feature decreases premature cross-linking or gelling. In one direct comparison trial, our technical partners replaced maleic acid with Trans-Aconitic in a polymer blend and reporting fewer clumping issues and smoother extrusion profiles.

    Compared to hydroxy-rich acids, Trans-Aconitic offers lower affinity for unwanted side reactions. For example, when co-processing with reducing sugars, citric and isocitric acid create more color bodies and Maillard byproducts. Our food production clients report less discoloration and off-odor in syrups, jellies, and drinks. The main reason boils down to the acid’s lack of reactive hydroxyl groups able to catalyze undesired browning—in side-by-side taste panels, consumers prefer products carried with Trans-Aconitic’s cleaner flavor.

    Use Cases Observed on the Factory Floor and in the Field

    Our own engineers, together with partners in research and development, see the greatest demand for Trans-Aconitic Acid in specialty polymer manufacture, industrial descaling, and advanced food preservation. In polymer synthesis, our product acts as a precision cross-linker. The triple acid group lets our customers build networks with controllable flexibility, providing new options in water-soluble films or slow-release capsules. One customer developed a proprietary blend for agricultural films that break down on schedule, helping reduce plastic residue in fields. The key was consistent acid group spacing, only possible thanks to our batch precision.

    Industrial descaling presents another story. Traditional phosphoric or citric acid descalers can bleach or etch metals beyond specs. Our industrial clients switched to Trans-Aconitic Acid formulations to target calcium scale with less impact on stainless and copper. On test runs, equipment showed less corrosion and pitting, which translated to longer asset lifespans and less downtime for cleaning cycles. For operators, spending less time on maintenance means more up-time—a productivity win rooted in molecular specificity.

    In food and beverage, we’ve watched technologists choose our acid for buffering and acidulation. Its milder taste profile and reduced reactivity with flavor molecules turn up in flavor panels and shelf-life assessments. We receive feedback from clients producing concentrated drink syrups or natural jellies, who report lower dosages needed compared to citric acid. Lower dose translates to cleaner labeling and more cost-effective formulations. The triple carboxylate structure also helps with mineral fortification—allowing clean dispersion of added calcium, iron, or magnesium with little precipitation.

    A less often discussed but notable application: Trans-Aconitic Acid’s bio-based credentials. Our extraction streams rely on renewable agricultural feedstocks, and we use closed-loop water recapture to minimize environmental impact. Some sustainability auditors have highlighted our acid’s value for meeting eco-labeled end-product certification. This becomes more important as customers seek to phase out fossil-fuel-derived additives or adopt circular production models. We actively track feedstock sources, maintaining traceability from crop to bottled acid so clients can secure green supply chains.

    Feedback Loops That Drive Better Manufacturing

    Direct communication with users shapes how we approach quality and innovation. A while back, polymer engineers reached out after noticing inconsistent melting points in their film blends. Turned out, low-level impurities were shifting thermal profiles. We added another purification chromatography step, and the variation vanished. Cases like this reveal how tight manufacturing control leads to end-user reliability.

    In another collaboration, a group working on liquid fertilizers reached out regarding solubility at high concentrations. Our R&D looked at particle surface area and refined granulation methods, which allowed the acid to dissolve fully at lower temperatures. Plant operators could then make up batches faster, saving time and labor on site. Improvements started on our end, but became a benefit for hundreds of growers as word spread.

    We also found that small changes in drying protocol changed acid flow properties—one adjustment to air speeds and tray angles gave a batch-to-batch consistency operators now count on. These sorts of improvements would never emerge in a vacuum, but draw directly from hearing partner challenges and refining our methods to solve them.

    Responsible Manufacturing and Safety in Mind

    Years of experience reinforce the idea that chemical manufacturing goes hand-in-hand with safety. We maintain strict site controls and consistently train our production staff on safe handling—especially during evaporation and crystallization, where dust or hot surfaces pose risk. We maintain negative pressure rooms with continuous monitoring, and vet all packaging suppliers for food safety compliance and chemical compatibility.

    We have adopted a zero-discharge water treatment policy, and regularly test effluent to keep within environmental codes. Our waste streams see neutralization before release, and we send off filtered solids for responsible incineration. For clients, knowing that their supply is clean and responsible matters. As regulatory requirements evolve, we keep up with periodic audits and third-party inspections, ensuring parcel traceability and batch integrity.

    Conclusion: The Manufacturer’s Take on Trans-Aconitic Acid’s Role in Modern Industry

    Looking back over our years producing Trans-Aconitic Acid, the most striking lesson is that quality, reliability, and transparency drive both our daily operations and industry trust. The triple carboxylate, trans-alkene structure isn’t just rare—it opens a spectrum of creative uses, from green chelation to improved food profiles and reliable polymer modification. We keep learning with each production cycle and client request, reinforcing our belief that open feedback, solid scientific methods, and real-world testing build success all along the supply chain. As we look ahead, innovations in renewable sourcing, process efficiency, and tailored applications will continue to shape how Trans-Aconitic Acid supports new frontiers in chemistry and industry.