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HS Code |
345022 |
| Chemical Name | Phosphonoformic Acid Trisodium Salt Hexahydrate |
| Synonyms | Foscarnet sodium hexahydrate |
| Molecular Formula | CNa3O5P · 6H2O |
| Molecular Weight | 286.07 g/mol (hexahydrate) |
| Appearance | White crystalline powder |
| Solubility | Soluble in water |
| Cas Number | 13401-90-6 |
| Storage Temperature | 2-8°C |
| Purity | Typically ≥98% |
| Ph Of 1 Percent Solution | Approximately 7.0-9.0 |
| Hazard Classification | Irritant |
| Stability | Stable under recommended storage conditions |
As an accredited Phosphonoformic Acid Trisodium Salt Hexahydrate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The chemical is packaged in a 100g sealed, high-density polyethylene bottle with a tamper-evident cap and safety labeling. |
| Shipping | Phosphonoformic Acid Trisodium Salt Hexahydrate is shipped in tightly sealed, chemical-resistant containers to prevent moisture absorption and contamination. Transport is conducted under ambient conditions with proper labeling, in compliance with local and international regulations for specialty chemicals. Handle with appropriate safety precautions during transit to avoid spills or exposure. |
| Storage | Phosphonoformic Acid Trisodium Salt Hexahydrate should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from incompatible substances such as strong acids and oxidizers. Store at room temperature (15–25°C), protecting it from moisture and direct sunlight. Ensure containers are clearly labeled, and access is restricted to trained personnel. Avoid prolonged exposure to air. |
Applications of Phosphonoformic Acid Trisodium Salt Hexahydrate in Industrial ManufacturingPhosphonoformic Acid Trisodium Salt Hexahydrate serves as a vital specialty chemical for industrial formulation and processing in several focused downstream sectors. We supply this material to manufacturers operating under stringent regulatory environments and advanced quality systems. The following application cases describe real-world usage, compliance requirements, typical ratios, integration points, and final product formats. 1. Water Treatment Chemicals for Scale and Corrosion ControlScale and corrosion control is a primary downstream use in the water treatment sector. Many industrial water systems, including cooling towers, boilers, and reverse osmosis lines, require strong sequestrants and inhibitors to maintain mechanical integrity, process efficiency, and on-spec water quality. Commercial formulators dose this product to chelate metal ions, reduce calcium deposits, and minimize corrosion rates in high-hardness and variable pH environments. Industry compliance standards
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2. Pharmaceutical Industry: Antiviral Active Pharmaceutical Ingredient ManufacturingOur product functions as an intermediate in synthesizing certain antiviral APIs, specifically as a precursor to compounds used in nucleoside analogue drug production. Manufacturers apply strict cGMP protocols and precise stoichiometric control to ensure pharmaceutical-grade reaction yields, impurity specifications, and batch-to-batch consistency during intermediate and API production. Industry compliance standards
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3. Industrial Cleaning Formulations for Metal Surface TreatmentThis product fills a key role in high-performance metal cleaning and surface treatment formulations. Industrial cleaning concentrate manufacturers add it to formulations for processing ferrous and non-ferrous equipment, heat exchangers, and pipelines. The unique chelating and anti-redeposition properties help remove oxide layers and inhibit further corrosion during cleaning, preparing surfaces for painting or coating operations. Industry compliance standards
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4. Formulation Aid in Ceramic and Concrete Additive ManufacturingManufacturers include this material as a dispersant and scale inhibitor in ceramic slurry and concrete admixtures. Its high chelation capacity allows for stable suspension of mineral particles and prevents blockages in process water lines, minimizing downtime and improving finished product consistency. Admixture producers value precise dosing control at scale to meet both product strength and regulatory requirements. Industry compliance standards
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At our plant, every ton of Phosphonoformic Acid Trisodium Salt Hexahydrate (PFA-Na3·6H2O) tells a story about practical challenges solved and reliability gained. Over the years, we’ve refined our process for this substance, moving beyond textbook chemistry to focus on stability, purity, and ease of use for the end-user. The demand for this compound in research and production settings has been steadily rising, driven by the need for consistency and exacting standards rather than marketing trends.
No batch leaves our facility without strict quality checks built into our process. We keep the sodium content, moisture levels, and free acid in close control because we’ve seen how even minor drifts in these figures can complicate work in the lab or factory. Our standard model of PFA-Na3·6H2O comes as a white to off-white crystalline powder. We avoid unnecessary micronization, since oversized granules lead to slow dissolution, while excess fines introduce dust and handling issues. From the start, we put an emphasis on free-flowing, manageable product.
Routine analysis ensures that our typical purity sits above 99%, while water content matches the hexahydrate grade so that calculations and measurements remain straightforward for users. We reject off-spec material early in our process to prevent downstream headaches. This isn’t a small detail; reproducible purity protects both research data integrity and industrial output. PFA-Na3·6H2O is hygroscopic, and careless packaging or loose seals invite clumping, so we developed packaging options that resist atmospheric moisture. Our technicians handle every drum and bag with an understanding carved out by years of troubleshooting customer complaints.
We see most of our Phosphonoformic Acid Trisodium Salt Hexahydrate used as a reagent in biochemical research, particularly in situations where inhibition of certain enzymes (like DNA polymerases) is necessary. Labs rely on it for studies involving herpesvirus replication and antiviral mechanisms. Our deep experience with supply to pharmaceutical researchers means that trace impurity levels get as much attention as gross assay results. Chemists value the predictable inhibition that comes from a known, unadulterated source of PFA-Na3·6H2O, instead of uncertain results that stem from questionable materials.
In industrial applications, the compound takes on a supporting role, often as a chelating agent or buffer component. We have responded to customers frustrated by material that cakes or picks up moisture during long transits, so our product packaging suits a range of logistics environments. It’s important to keep material flowable and unchanged when transported from our site to destinations across the globe. Phosphonoformic Acid Trisodium Salt Hexahydrate’s stability profile enables its use under conditions where robust inorganic salts are expected to perform. It doesn’t break down or decompose in normal warehouse conditions, and that reliability has solidified trust among buyers who cannot afford batch-to-batch drift.
In fields like water treatment, PFA salts are considered for their capacity to interfere with unwanted biological growth or as systemic controls in certain pipeline processes. These more exotic uses remain somewhat niche, but we engineer each batch with the flexibility to serve regardless of sector.
Some confuse Phosphonoformic Acid Trisodium Salt Hexahydrate with superficially similar compounds, like sodium phosphate salts or even other phosphonate derivatives. The unique aspect of PFA-Na3·6H2O lies in its inhibitory action against pyrophosphate-driven enzymes, providing a degree of specificity not found in simpler salts. And unlike monosodium or disodium forms of phosphonoformic acid, the trisodium hexahydrate brings better solubility in water and more straightforward pH adjustment.
We have handled customers’ questions about differences between the hexahydrate and anhydrous forms. The extra water molecules play a practical role: they facilitate easier handling at room temperature, reduce airborne dust, and support quicker dissolution. These small edges add up to meaningful improvements in working environments. Dry, fine powders draw moisture and form lumps—packing a hydrated, balanced salt drastically cuts down on these problems. Feedback from logistics teams and lab staff both has made clear that these operational details matter far more than glossy datasheets suggest.
Compared to competing options, our Phosphonoformic Acid Trisodium Salt Hexahydrate aims for chemical predictability. The molecular signature is locked, so research results align from one experiment to the next. Our in-house QC team doesn’t merely check for gross contamination, but looks for shifts in sodium ratio and possible breakdown products. This vigilance means we consistently exceed the standards set by industry consortia and regulatory guidance.
We have seen warehouses where careless stacking or torn sacks cause contamination and losses. That’s why we use triple-layered, moisture-resistant bags sealed for transit. Our drums are lined to prevent contact between the product and steel walls, because even minimal exposure can spark localized hydrolysis. Years of real-world logistics taught us to prioritize these controls over extravagant claims about indefinite shelf life or mystical handling properties.
Lab users appreciate packaging sizes optimized for regular usage patterns, not just bulk transportation. We offer container weights sized for a week’s worth of benchwork in academic labs. Too large a package, and the compound sits open, losing quality by the day. We build customer loyalty by listening to the small complaints and addressing the process gaps they point out.
We have worked with clients who reported slow dissolution in cold or highly buffered solutions. Because of these cases, we advise gradual addition and moderate stirring—a lesson learned from troubleshooting actual production blips instead of relying on theoretical advice. Over time, our process engineers focused on producing uniform crystal size to optimize this very aspect, and return rate for undissolved residue dropped sharply.
Not every producer can deliver reliable Phosphonoformic Acid Trisodium Salt Hexahydrate from crop year to crop year—or season to season—because neglecting upstream raw materials spells trouble. Our phosphonate intermediates are sourced with an eye on traceability, not price alone. We have spent years developing a supply web that shields our production from regional shortages and price swings. More than once, this has spared our customers headaches during global volatility.
We operate on a lot-based release process rather than ongoing, batch-by-batch rush fulfillment. This means customers ordering now get material from pretested, prequalified production rather than an unknown blend. Surprises from suppliers often lead to delays, disputes, and troubleshooting—costs that get passed on as waste or production downtime. Customers may not see the effort on order forms, but they notice the lack of unexplained hiccups.
We document each shipment with chain-of-custody records as part of our standard operation, because recalls and investigations usually boil down to identifying one rogue batch. Customers in pharmaceutical and research sectors demand this scrutiny, and we provide comprehensive batch records with each shipment. This practice grew out of both regulatory expectations and lessons from early contract mishaps, where gaps in records forced entire production reruns. Now, our system links every shipment to personnel, inputs, and processing conditions without ambiguity.
Our production oversight means we can trace any concern back to a vessel, week, or operator. This transparency reassures customers that future problems can be managed without playing blame games or facing untraceable errors. It is not about ticking boxes on an audit form; efficiency and trust in every order reflect years of experience that newer entrants to this space just can’t match.
Handling chemicals at this scale brings responsibilities beyond the gate. We invested in upgraded waste collection and neutralization systems to keep plant outflows free of harmful phosphonates. Our process engineers collaborate with environmental teams to chart safe handling and disposal of rinse water and process slurries, based on up-to-date local regulations rather than a one-size-fits-all policy. Some clients have strict downstream waste policies, so our technical staff support their inquiries with real auditing evidence, not just printed brochures.
Material leaving our facility contains no volatile or flammable impurities, so routine handling rarely triggers specialized ventilation or fire suppression protocols. Still, we educate all of our partners on the best practices for neutralization and discharge, focusing on simple, actionable steps. This hands-on mentality means we field far fewer emergency calls and after-hours consultations than competitors who offload these problems onto customers.
Most labs performing quality control on Phosphonoformic Acid Trisodium Salt Hexahydrate look for the basic markers: color, crystalline structure, solubility, and an assay of sodium and phosphorus content. We go beyond by using chromatography, elemental analysis, and impurity profiling as a core part of our outgoing QA protocol. Several times, this process has caught trace contaminants—remnants of byproduct formation or upstream raw material impurities—that standard QC would miss.
Because of our own experiences, we maintain calibration schedules and method validation twice as frequently as some industry standards call for. Equipment failures and out-of-spec releases are often preventable with proactive maintenance, and our reputation grew because rigorous testing caught problems before they reached our customers, not after. We don’t treat QA as a last-minute formality but as a feedback loop to constant process refinement.
The tight tolerances offered by our product specifications aren’t set in stone arbitrarily; they result from open discussions with major users. These consultations often lead us to tighten, rather than relax limits, ensuring that our delivered products keep up with evolving end use cases. Feedback cycles that involve pilot-scale customers have contributed to a reliable and reproducible chemical.
We understand that every new chemical adopted in a lab or plant means retraining, new documentation, and safety measure reviews. Our technical support staff offer more than boilerplate documents. They guide users through scenarios such as long-term storage, mixing with aggressive reagents, and troubleshooting for instances where material handles differently from expectations. Our customer service isn’t outsourced or directed toward scripted responses; the advice comes from those who spent years working hands-on with PFA-Na3·6H2O.
Some clients initially switch from other trisodium salts, expecting identical performance, only to encounter unexpected results. We provide practical insight into differences in ionic strength, contribution to osmolarity in biological applications, and compatibilities with various buffer systems—even basic advice like ensuring dry utensils are used to prevent localized moistening and caking. This boots-on-the-ground knowledge comes from customer feedback cycles and our own handling best practices.
Proper labeling, documentation, and storage advice enable smoother audits and inspections on the customer’s end. Our years interacting with regulatory bodies and quality assurance auditors ensure we prepare shipment paperwork that stands up to review, preventing workflow interruptions.
As usage grows outside of classic research and pharmaceutical sectors, we continuously review our processes to address new demands. Keeping up with advances in analytical chemistry and emerging environmental policies requires more than a one-time upgrade. Our margin for error remains narrow because most of our end-users—whether academic scientists, drug makers, or industrial water treaters—need every shipment to behave identically to the last.
A stable supply of high-purity Phosphonoformic Acid Trisodium Salt Hexahydrate is the result of detailed process monitoring, skilled operators, and feedback-informed improvements. Our focus will always remain on giving the customer both transparency and reliability—based on technical knowledge, operational excellence, and respect for the practical realities our buyers face every day. As a true manufacturer, we recognize that consistency, purity, and traceability mean more than just numbers on a COA—they’re the foundation of scientific and industrial progress.