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Send EmailEthylene Diamine Tetra Methylene Phosphonic Acid, Ethylenediamine Tetramethylene Phosphonic Acid, EDTMP, EDTMPA, EDITEMPA, 1429-50-1
Product Information: EDTMPA (Ethylenediamine Tetramethylenephosphonic Acid)
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Product Name: Ethylenediamine Tetra (Methylene Phosphonic Acid) (EDTMPA)
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Chemical Formula: C₆H₂₀N₂O₁₂P₄
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CAS No: 1429-50-1
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Molecular Weight: 436.12 g/mol
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Appearance: White crystalline powder
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Melting Point: 215–217°C
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Boiling Point: 878.7±75.0°C (estimated)
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Density: 1.993±0.06 g/cm³ (estimated)
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Solubility: Easily soluble in ammonia, slightly soluble in aqueous base
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Reactivity: Strong chelation capacity, especially with copper ions
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pH Stability: Stable across a wide pH range
Applications
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Water Treatment: Scale and corrosion inhibitor
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Electronics Industry: Cleaning of semiconductor chips
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Pharmaceuticals: Carrier for radioactive elements in diagnostics and therapy
Synonyms
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Ethylenebis(nitrilodimethylene)tetraphosphonic acid
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EDTMP / EDTMPA
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Dequest 2041
Phosphonates: General Overview
Phosphonates are organic phosphorus compounds with high water solubility and strong metal ion binding capacity.
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Key Properties: Chelation, corrosion inhibition, scale prevention.
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Industrial Uses: Water treatment, detergents, industrial cleaning, agriculture, coatings.
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Environmental Importance: Prevent scale deposits, extend equipment lifespan, reduce chemical consumption.
Types of Phosphonates and Their Features
| Phosphonate | Chemical Formula | Key Properties | Applications |
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| ATMP | N(CH₂PO₃H₂)₃ | Excellent chelation, threshold inhibition, high stability | Water treatment, industrial cleaning, coatings, detergents |
| DTMPA | (CH₂PO₃H₂)₂NCH₂CH(NHPO₃H₂)₂ | Strong metal ion binding, wide pH range, thermal stability | Water softening, boilers, cooling towers, industrial cleaning |
| EDTMPA | C₆H₂₀N₂O₁₂P₄ | Strong chelation, effective at low concentrations, high thermal stability | Water treatment, industrial cleaning, coatings, detergents |
| PBTCA | (CH₂PO₃H₂)₂N(CH₂)₂N(CH₂PO₃H₂)₂ | High chelation capacity, lattice distortion, long-term stability | Water treatment, industrial cleaning, coatings, detergents |
Summary
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EDTMPA is a highly effective chelating agent within the phosphonate family, widely used in water treatment and industrial cleaning.
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Phosphonates in general are indispensable in scale prevention, corrosion inhibition, and detergent performance enhancement.
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Different phosphonates (ATMP, DTMPA, EDTMPA, PBTCA) provide tailored solutions depending on process conditions such as pH, temperature, and system type.
