Ethylenediamine tetra(methylene phosphonic acid), traded widely as EDTMP, is a phosphonate chelating agent prized for its scale-inhibiting, dispersing and anti-corrosion properties. It functions as a workhorse additive across water treatment, detergents and cleaning formulations, ceramic and building-material slurries, and a broad range of industrial complexing applications. Its cost structure is closely tied to its upstream feedstocks, principally ethylenediamine, phosphorous acid and formaldehyde, so movements along those chains tend to set the tone for EDTMP itself.
Through the first half of 2026, EDTMP prices held a broadly firm to range-bound footing. Feedstock dynamics remained the dominant influence, with phosphorus-derived inputs staying relatively elevated on tight phosphate rock and sulphur availability, while ethylenediamine offered a more balanced, occasionally softer counterweight as demand from construction-linked sectors stayed measured. Asian markets, led by China and India, were comparatively steady, underpinned by resilient water-treatment and detergent offtake even as buyers stayed cautious and purchased close to need. European material carried a firmer, premium-leaning tone, reflecting elevated energy and logistics costs alongside selective import flows, whereas North American prices were stable with a mild upward bias as participants managed inventories carefully against steady downstream demand. Across the regions the market stayed balanced, with neither a pronounced rally nor a sharp correction taking hold as the period progressed.
Analyst Insight
According to Procurement Resource, EDTMP prices are likely to remain firm to range-bound in the near term, anchored by steady chelant and water-treatment demand and by supportive phosphorus-based feedstock costs, though intermittent softness in ethylenediamine and shifting freight and energy expenses could introduce periodic fluctuations.
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Asia
In Asia, EDTMP prices showed a firm trend during the second half of 2025. The market was supported by strong demand from the fertilizer sector, particularly in India and China, where phosphorus acid based fertilizers were important for crop production. In India, importers continued to secure phosphorus acid supplies despite recent price hikes, keeping demand for EDTMP stable. China’s phosphorus acid exports increased significantly, while domestic phosphate ore imports declined slightly, creating a tighter supply balance. Rising feedstock costs, including sulfur and high-grade phosphate rock, also contributed to the firmness of EDTMP prices.
Europe
In Europe, EDTMP prices fluctuated moderately in H2’25. While overall supply was sufficient, limited upstream production of phosphorus acid and high sulfur costs put pressure on producers’ margins. Fertilizer manufacturers maintained steady procurement, though uncertainty over shipping timelines and raw material availability caused some short-term price movements. Export activity from North African and Middle Eastern suppliers remained selective, which kept spot market prices firm. European buyers remained cautious, balancing inventory needs with cost concerns, leading to a slightly bullish trend overall.
North America
In North America, EDTMP prices were stable but showed mild upward pressure. Domestic phosphate production faced supply shortfalls due to weather-related disruptions and lower imports, leading to tighter availability. Farmers’ demand for phosphorus based fertilizers remained steady, especially for fall application, which encouraged importers and distributors to secure supplies in advance. Despite higher feedstock and raw material costs, prices did not spike significantly because of careful inventory management and long-term contracts.
Ethylenediamine Tetra (Methylene Phosphonic Acid) or EDTMP is a phosphonic acid that appears as a white crystalline powder at room temperature. It comes with its unique chelating and anti-corrosion properties. This phosphonate product provides optimum solutions for a wide range of industrial applications, ranging from use in detergents and cleaning agents to water treatment in general. It has a high dispersing power for ceramic slurries in building materials.
C6H20N2O12P4
Antiscalants, Dispersants, Complexing and chelating agents, As corrosion inhibitors, Water treatment, Building materials, Detergent, Solvent
1429-50-1, N,N,N',N'-Ethylenediaminetetrakis(methylenephosphonic acid), Ethylenediaminetetra(methylenephosphonic acid), Lexidronam
Zschimmer & Schwarz, AVA Chemicals Private Limited, Tokyo Chemical Industry UK Ltd, Zaozhuang Kerui Chemicals Co.,ltd
CurrencyUS$ (Data can also be provided in local currency)
Supplier Database AvailabilityYes
Customization ScopeThe report can be customized as per the requirements of the customer
Post-Sale Analyst Support360-degree analyst support after report delivery
Note: Our supplier search experts can assist your procurement teams in compiling and validating a list of suppliers indicating they have products, services, and capabilities that meet your company's needs.
In this process, a similar route to that of Mannich type reaction is utilised. Phosphorous acid, ethylenediamine and formaldehyde react in the presence of HCL and the resulting mixture is heated and purified to finally obtain EDTMP.
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