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Products > Water Treatment Chemicals
1-Hydroxyethylidene-1,1-Diphosphonic acid（HEDP）
Product name: HEDP
CAS NO.:：2809-21-4
Abbreviation: HEDP
Molecular weight：206
Structural Formula
SPECIFICATIONS:
| items | index |
|
Appearance |
Colorless or light yellow transparent liquid |
White crystal powder |
Active content (HEDP)% |
58.0-62.0 |
89.0 min |
Phosphorous acid (as PO33-)% |
2.0 max |
0.5 max |
Phosphoric acid (asPO43-)% |
0.8 max |
0.5 max |
Chloride (as Cl-)% |
0.01 max |
0.01 max |
pH (1％ solution) |
2 max |
2 max |
Density (20℃)g/cm3 |
1.430 - 1.460 |
- |
Fe ion ppm |
10 max |
20 max |
APPLICATIONS:
It is mainly used as a Scale & Corrosion Inhibitor, chelating (Sequestrating), deflocculating agent in Cooling and Boiler water treatment, Textile Dying, Detergents etc.
Packing:
Normally In 250kg net Plastic Drum, IBCs can also be used as required..HEDP is available with lower Chloride level, lower Iron level, lower Arsenic level