Ethylenediamine Tetramethylene Phosphonic Acid (EDTMPA)
CAS Number: 1429-50-1
EDTMPA is an organophosphonic acid with four phosphonate groups that provide exceptional chelation of calcium, magnesium, and transition metal ions. It is a powerful scale inhibitor and corrosion inhibitor for high-hardness industrial water systems. Its strong complexing ability also makes it effective as a metal ion stabilizer in hydrogen peroxide bleaching and textile processing.
Technical Specifications
| density | 1.20–1.30 g/cm³ |
| chloride | ≤1% |
| appearance | Light yellow liquid |
| activeContent | ≥28% |
| pH (1% solution) | 2.0 |
Applications
- High-hardness cooling water scale inhibition
- Boiler water and steam system treatment
- Hydrogen peroxide stabilization in bleaching
- Textile processing water treatment
- Scale removal and prevention in desalination
Key Features
- Four phosphonate groups for superior chelation performance
- Highly effective in very hard and high-temperature water
- Excellent stabilizer for metal ions in oxidizing conditions
- Synergistic with HEDP and ATMP in formulated programs
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CAS Number
1429-50-1
Category
Water Treatment ChemicalsAvailability
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