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HS Code |
325061 |
| Cas Number | 22042-96-2 |
| Molecular Formula | C6H12N2Na5O12P4 |
| Molecular Weight | 573.1 g/mol |
| Appearance | White to off-white powder |
| Solubility In Water | Highly soluble |
| Ph 1 Solution | 10.0-11.0 |
| Chelating Ability | Excellent for metal ions |
| Stability | Stable under normal conditions |
| Density | Approx. 1.2 g/cm3 |
| Melting Point | Decomposes before melting |
| Odor | Odorless |
| Ionic Nature | Anionic |
| Main Applications | Water treatment, detergent, scale inhibition |
| Biodegradability | Low |
As an accredited Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging is a blue HDPE drum containing 250 kg of Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid). |
| Shipping | Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid) is shipped in sealed, corrosion-resistant containers, such as HDPE drums, to prevent moisture absorption and contamination. All containers are clearly labeled, handled with care, and stored in a cool, dry place, away from incompatible substances and direct sunlight during transit. |
| Storage | Store Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid) in a tightly closed container, in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers and acids. Protect from moisture and direct sunlight. Ensure proper labeling and use secondary containment to prevent spills. Keep away from food, beverages, and animal feed products. |
Applications of Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid) in Industrial ManufacturingAs a specialist producer of phosphonate-based water treatment chemicals, we supply high-purity Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid) (EDTMP•Na5) to OEMs and formulators worldwide. This section details real industrial applications, process integration data, and compliance guidance for this advanced scale inhibitor and chelating agent in key downstream segments. 1. Industrial Water Treatment for Recirculating Cooling SystemsOur EDTMP•Na5 plays a critical role in recirculating cooling water treatment, controlling calcium carbonate scale and minimizing corrosion within industrial HVAC, power plant, and heavy manufacturing cooling towers. The chelation mechanism effectively binds calcium and metal ions, while thermal stability maintains chelating performance under high circulation temperatures. Downstream users incorporate the raw material directly within blended complex formulations, enabling stable operation and compliance with regional water discharge regulations. Industry compliance standards
Typical usage ratio
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2. Boiler Water Conditioning in Steam Generation PlantsDownstream steam generation facilities rely on EDTMP•Na5 to minimize scale formation on heat exchanger surfaces and to maintain the integrity of boiler tubes, superheaters, and preheaters. The chelant remains stable under alkaline and moderately high-temperature conditions, supporting long boiler run-cycles, efficient heat transfer, and improved maintenance intervals. Users must comply with strict steam purity, safety, and environmental protection standards, integrating regular water chemistry testing for operational assurance. Industry compliance standards
Typical usage ratio
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3. Textile Dyeing and Finishing Water ManagementIn textile manufacturing, especially in disperse, reactive, and vat dyeing operations, downstream companies use this phosponate salt to prevent metal ion interference and to stabilize peroxide or hypochlorite bleaching steps. Its scale control and metal chelation increase the uniformity of dye and finish uptake, while preventing shade variation and equipment downtime due to scale blockage. This material must meet strict standards on textile safety and final effluent discharge under national and sectoral policies. Industry compliance standards
Typical usage ratio
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4. Industrial Cleaning and Metal Surface TreatmentEDTMP•Na5 is integrated in industrial cleaning agents and metal surface pre-treatment baths for its ability to bind interfering ions and reduce scale during pickling, degreasing, and phosphating processes used in steel, aluminum, and machinery manufacturing. Users must ensure conformance to environmental safety and operational efficacy, as improper scale control can affect downstream coating or plating adhesion. Industry compliance standards
Typical usage ratio
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5. Oilfield Injection Water and PipelinesOil and gas extraction companies deploy this phosphonate salt in well injection systems and pipeline transfer networks to suppress scale precipitates from high-salinity brines, protecting tubulars, pumps, and valves. Field engineers depend on the product’s threshold inhibition performance and stability across fluctuating pH and temperature profiles, with strict tracking of product purity and system compatibility to comply with petrochemical best practices and wastewater reinjection standards. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
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Competitive Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid) prices that fit your budget—flexible terms and customized quotes for every order.
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Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid), often referred to as EDTMP•5Na, has become integral to many water treatment and industrial processes in recent decades. Our direct involvement with its manufacture stems from an understanding that few chemicals deliver such a dependable blend of chelation and scale inhibition. EDTMP•5Na demands physical rigor and chemical precision throughout the potassium-free synthesis, from maintaining the right pH conditions during phosphonomethylation to ensuring the final product remains free from process impurities that can harm downstream applications.
Our EDTMP•5Na, produced in granular or high-purity powder, features controlled particle size distribution and consistent assay levels on active content, typically not lower than 30% on a dry basis. As a factory focusing exclusively on phosphonate series chelating agents and water treatment chemicals, we monitor color, iron content, and solution clarity stringently at every batch. Precise pH adjustment and filtration protocols preserve product integrity — with most clients demanding clear, free-flowing material that allows for instant dissolution.
What consistently makes EDTMP•5Na unique compared with similar phosphonate or EDTA-based products is the multi-phosphonate backbone, built for sustained sequestration in both hot and cold conditions. Unlike simple EDTA salts, which lose performance above 80°C or break down under strong alkaline or oxidizing conditions, EDTMP•5Na holds its structure and function for much longer. Its resistance to hydrolysis during intensive boiler cycles comes from the extra methylene phosphonic acid groups, and its salt form enhances solubility without causing unwanted side precipitation.
In our plant, every step—right from reaction charge to granulation—targets these structural benefits. The purity makes it suitable for specialty formulations, especially where other scale inhibitors might decompose or contribute unwanted heavy metals.
The majority of our production flows towards industrial water treatment systems. Scale and corrosion remain the biggest enemies of heat exchange equipment, recirculating cooling systems, and medium-pressure boilers. Many engineers care less about the molecule than the reliability of their operations. We have observed—across hundreds of installations—a clear drop in maintenance frequency and downtime once our EDTMP•5Na replaces older phosphates or less robust chelating agents. Because it does not promote calcium phosphate or carbonate precipitation, the entire system remains clearer, improving thermal exchange and energy utilization.
Some customers use our EDTMP•5Na in textile and dye manufacture. Water hardness interferes with dye-bath chemistry and fabric color uniformity. Adding even trace quantities stabilizes the process, improving fabric yield and color fastness. In the paper and pulp industry, the pentasodium salt interrupts the formation of scale on rolls and chests, keeping production continuous. Chemical cleaning blends benefit as well—EDTMP•5Na weakens the hold of deposited scale, particularly where mixed salts block pipes and nozzles.
Additionally, electronics manufacturers tap EDTMP•5Na for its chelation strength during circuit board cleaning and surface treatment. Chelating action ensures trace metals like iron and copper do not redeposit—one failure can ruin an expensive batch of boards. The high purity and fast dissolution of our material mean less waste and more reliable electronic surfaces.
Many industrial players continue to use EDTA sodium salts out of habit. They eventually come to us with unresolved fouling, inconsistent cleaning, or pitting on metal surfaces. EDTA’s four-carboxylate structure delivers basic chelation, but its stability constant for metal ions falls sharply above neutral pH and tends to diminish in hot systems—a problem for process water above 75°C.
The additional phosphonomethyl groups in EDTMP impart higher calcium, magnesium, and iron sequestration at both neutral and alkaline pH. Our product does not break down easily, supports higher operating temperatures, and shows much lower toxicity to aquatic organisms than heavy-metal sequestrants. The result: safer handling and more environmentally sound effluent chemistry.
Compared to HEDP, another common phosphonate, EDTMP’s multi-dentate structure delivers stronger resistance to oxidative chemical attack and keeps binding capacity over longer recycle periods. A key differentiation comes during chemical cleaning cycles—EDTMP•5Na remains active throughout extended recirculation, whereas alternatives exhibit drop-off in efficacy and may allow fresh deposition to occur.
We have heard from larger cooling tower operators that, with EDTMP•5Na, solids removal drops by 30–40%, and they can cut biocide dosing intervals because the chemical stabilizes under biocide attack more effectively than either EDTA or HEDP. Less chemical lost to breakdown, less need for mechanical cleaning, fewer interventions—the operational data matches the chemistry.
Producing EDTMP•5Na at scale throws up its own challenges. The phosphonomethylation process requires tight temperature and pressure control. Any deviation can lead to undesirable byproducts: orthophosphate, low-molecular-weight phosphonates, or even formaldehyde residues. We addressed this by investing in automated dosing and more rigorous analytical monitoring. It paid off—reduced color and turbidity, higher active content, and regulatory compliance in all markets we serve.
Iron and manganese, common in water sources and reactor materials, demand constant attention. Just a few ppm of iron in the final product may ruin cleaning cycles for power plants or cause paperwork headaches for textile customers. We use resin and multi-stage filtration as a final polish and check every lot for trace metals before shipment. This prevents unexpected deposit formation at customer sites and supports clients seeking third-party certification on finished goods.
Some resellers might not care about these standards, but we have learned through customer feedback and field visits that the overlooked details eventually turn into recurring field issues. Direct relationships with end users mean we see every complaint and improvement opportunity up close.
Environmental impact shapes chemical design as much as process efficiency. EDTMP•5Na’s low toxicity and slow biodegradation suit many closed-loop industrial systems, where minimal release to the environment takes place. We engage with environmental auditors and regulatory bodies to stay ahead of compliance — whether on residual phosphorus emissions or aquatic toxicity.
Based on our lab experience and practical feedback, properly dosed EDTMP•5Na remains effective at low concentrations, maximizing asset protection without overburdening wastewater systems. Sludge generation falls compared with the high levels from plain orthophosphate treatments. In practice, this means less handling cost, and fewer environmental liabilities for both producer and consumer.
Laboratory and field data also show that, compared to older organic phosphonates, our pure pentasodium salt lowers the risk of eutrophication because of improved metal removal efficiency. Properly designed water reuse or closed-loop systems benefit from its high selectivity—operators avoid metal contamination of make-up water, extending the life of resins, filters, and discharge infrastructure.
We get many questions about storage, blending, and operational dosages. Our granular EDTMP•5Na resists clumping as long as it is kept dry and away from organic vapors. Moisture ingress remains a risk—caking reduces solubility and may lead to inaccurate feed rates. We offer moisture-barrier packaging and recommend clients use spent drums or sealed hoppers for transfer.
In blending facilities, the material dissolves rapidly in ambient temperature water. Late addition to hot solutions sometimes causes “bumping,” so we recommend staged addition during make-up. Our plant teams adjust blending protocols to suit customer operation size and automation—helping to avoid spillage or operator overexposure.
We engage directly with client operators and maintenance planners. Feedback on pump compatibility, residual control, or ease of cleanup informs our own production cues—any adjustment or tweak on our line follows real usage results, not just regulatory or sales requirements.
Some end-users search for the lowest unit cost rather than value realized over years. In our field visits, short-term savings from switching to generic or poorly controlled EDTMP•5Na often result in higher failure rates—cleaning downtime, asset corrosion, environmental penalty charges—all outstrip chemical savings. Straight answers come from technicians, not marketing: purity matters, and so does correctly matching the product grade to actual site requirements.
A recurring issue for some clients has involved upset dosages—either from pump miscalibration or because of varying water contamination caused by seasonal changes. We work with engineering teams to develop dosing curves for each site and train staff to recognize and correct anomalies early. Modern control systems, feedback loops, and real-time assays make a huge difference in predicting needs and preventing expensive interventions.
Dosing consistency relies on accurate product, but so does maintaining a partnership with customers. Our support extends to technical teams on site; we troubleshoot color, precipitation, and even unexpected interactions with other chemicals in the system. Long-term relationships, rather than one-off shipments, go a long way towards smoother plant operations.
Since our origins as a small batch producer, demand has shifted from basic bulk chemicals to specialty agents with specific impurity controls and packaging needs. Working directly with power generation customers, we have begun modifying reactor conditions to further cut trace metal residuals—improving product not just through filtration but at the synthetic backbone stage.
In the next years, digital tracking and lot traceability will matter more; customers want to see not just assay numbers but actual process history. We are integrating these systems into plant practice, responding to calls for better assurance in plant audits and supply chain transparency.
We expect future regulations to tighten especially around phosphorus discharge. Early investment in testing and production line adaptation positions our company to anticipate changes, not simply react. Our factory controls every step of the process, so we can shift grade or purity as environmental, regulatory, or client demands evolve.
Many water treatment products available in global markets pass through layers of traders; few reach users straight from the manufacturer. Being in the factory every day, we see the difference stringent control and process rigour make—not just on spec sheets but in performance at industrial sites and how easily customers manage their systems. By listening to field operators, using direct experience to guide improvements, and always aiming for higher standards in every batch, we reinforce the strengths of EDTMP•5Na as more than simply a commodity.
Years of learning have reinforced our belief that chemical manufacturing goes beyond selling molecules—it is about standing behind the performance and reliability those molecules deliver. Our focus on Pentasodium Salt of Ethylene Diamine Tetra (Methylene Phosphonic Acid) comes from ongoing dialogue with industry users, engineering teams, and environmental partners, all seeking the same outcome: stable, effective, and responsible operations.
Through every step, from input selection to final shipment, the factory defines what users experience in the field. The real story of EDTMP•5Na comes out in fewer maintenance shutdowns, cleaner equipment, and better-managed water in our customers’ hands. We see the differences from the inside—and we intend to keep earning the trust placed in this critical chemical, batch after batch, year after year.
