Ethylene Diamine Tetra (Methylene Phosphonic Acid) (EDTMPA), also widely known as EDTMP or EDTPO, stands as a highly versatile and potent phosphonic acid, distinguished by its exceptional chemical properties and broad range of applications. With its unique molecular structure, represented by the formula C6H20N2O12P4 and a molecular weight of approximately 436.13, EDTMPA is a crucial compound in various industrial and specialized fields.

At room temperature, EDTMPA presents as a white crystalline powder. It possesses a melting point typically ranging from 215 to 217℃, with a density around 2.0 g/cm3. While its solubility in water is limited, generally less than 5% at ambient temperatures, it readily dissolves in ammonia, a characteristic that broadens its utility in specific formulations. Its robust chemical stability is further evidenced by a high boiling point of approximately 878.7℃ and a flash point of about 485.2℃, making it suitable for demanding applications.

The hallmark property of EDTMPA is its extraordinary metal ion chelating capacity. This chelating power significantly surpasses that of other commonly used agents, including EDTA (Ethylenediaminetetraacetic acid) and DTPA (Diethylenetriaminepentaacetic acid). Specifically, its complex constant with copper ions is noted as being the largest among all known chelating agents. This superior ability to bind with various metal ions makes EDTMPA an indispensable tool for preventing undesirable reactions and deposits caused by metal impurities.

The applications of EDTMPA are diverse and impactful. In the critical sector of water treatment, it serves as an excellent antiscaling and anti-corrosion agent. Its corrosion inhibition capabilities are particularly noteworthy, often reported to be 3 to 5 times more effective than conventional inorganic polyphosphates. It demonstrates exceptional scale inhibition, even under high-temperature conditions up to 200°C, making it ideal for use in industrial cooling systems, boilers, and other water circulation systems where mineral deposition is a persistent challenge.

Beyond water treatment, EDTMPA finds significant use in high-tech industries. As a high-purity grade reagent, it is invaluable in the preparation of integrated circuits, where it functions as a powerful detergent in the manufacturing of semiconductor chips. Its ability to meticulously chelate trace metal ions ensures the purity and performance required for sensitive electronic components. Furthermore, its innocuous nature allows for specialized applications, such as a carrying agent for radioelements in the medical industry, contributing to advanced inspection and therapeutic procedures. In environmental science, EDTMPA is employed to understand and manage the mobility and distribution of trace metals in natural aquatic environments, and it plays a role in research concerning the immobilization of radioactive metal ions in nuclear waste management.

Meeting stringent quality criteria, EDTMPA typically boasts a minimum active acid content of 96.0% and a total phosphonic acid content (as PO4) of 82.0% minimum. Impurity levels are tightly controlled, with chloride (Cl) at 0.1% max, moisture at 2.0% max, and iron (Fe) at 5.0 mg/L max. The pH of a 1% water solution is maintained at approximately 2.0.

For those seeking a reliable manufacturer or supplier of high-quality Ethylene Diamine Tetra (Methylene Phosphonic Acid), NINGBO INNO PHARMCHEM CO.,LTD. offers this advanced chelating agent. To buy or purchase EDTMPA, considering its competitive price and superior performance, direct inquiries are welcomed. The product is typically packaged in 25kg bags, with custom requirements also accommodated. Proper storage in a shady and dry place ensures a shelf life of at least ten months, maintaining its efficacy for various critical applications.