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Molecular Formula: C2H8O7P2
CAS No.: 2809-21-4
Alias: HEDPA
Molecular Formula: C2H8O7P2
Molecular Weight: 206.02
Structural Formula:
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid HEDP 60% Liquid CAS No:2809-21-4
Properties & Use
It is an organic phosphoric acid series antiincrustation corrosion inhibitor. It has good stability in high pH-value conditions; has good resistance to acids/alkali and oxidation.
HEDP is widely used for electrical power, chemical engineering, metallurgy and chemical fertilizer industries.
Applications:
| items | index |
| Appearance | Clear, Colorless to pale yellow aqueous solution |
| Active content (HEDP)% | 58.0-62.0 |
| Phosphorous acid (as PO33-)% | 1.0 max |
| Phosphoric acid (asPO43- )% | 0.8 max |
| Chloride (as Cl-) ppm | 100.0 max |
| pH (1% solution) | 2.0 max |
| Density (20)g/cm3 | 1.43-1.47 |
| Fe,mg/L | 10.0 max |
| Colour APHA (Hazen) | 30.0 max |
| Acetic acid % | 0.5 max |
| Ca sequestration (mg CaCO3/g) | 500.0 min |
Competitive Advantage:
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