| Product name | （Ethylene-dinitrilo）-tetramethylene Phpsphonic Acid Na Salts |
| CAS NO. | 7651-99-2 |
| Content | 24-26% （as acid） |
| EINECS NO. | 231-615-4 |
| Molecular Formula | C6H15O12N2P4Na5 |
| Molecular weight | 546.13 |
| Appearance | Clear colorless to pale yellow liquid |
| Product Grade | Industrial |
| Structural Formula |  |
| Description & Application | Phosphonic acid salt diversity, the cathode type corrosion inhibitor. Can mix with water soluble, non-toxic pollution-free, chemical stability and good temperature resistance, under 200 ℃ still has good scale inhibition effect. In aqueous solution can be dissociated into 8 positive and negative ions, thus it can be with multiple chelate metal ions, formation of macromolecular network structure complex, multiple monomers loosely dispersed in water, make the normal crystallization of calcium scale. EDTMP sodium salt of calcium sulphate, barium sulfate scale of scale inhibition effect is good. |
| Specification | Active salt content %: 30-35 Active acid content %: 24-26 Chloride (as Cl-)%: ≤5 Iron, µg/g,ppm: ≤20 PH（1% solution）: 6.0-8.0 Density(20℃) g/cm3 : 1.20 – 1.30 Appearance： Clear colorless to pale yellow liquid |
| Package | 200L Drum, 1000L IBC or Bulk. Stored in cool and dry place. |
| Shelf Life | 1 year |
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