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Product description
Molecular Formula: C2H8O7P2
CAS No.: 2809-21-4
Alias: HEDPA
Molecular Formula: C2H8O7P2
Molecular Weight: 206.02
Structural Formula:
Low As HEDP Liquid 58% - 62% 1-Hydroxy Ethylidene-1 1-Diphosphonic Acid CAS: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 |
|
As ppm |
1ppm; 5ppm; 10ppm |
Competitive Advantage:
Synonyms:
HEDP;HEDP(A);ETIDRONIC ACID;1-Hydroxy Ethylidene-1,1-Diphosphonic Acid; Hydroxyethylidene-1,1-diphosphonicacid(HEDP); 1-HYDROXYETHYLIDENEDIPHOSPHONIC ACID;Hydroxyethylidene Diphosphonic acid(HEDP); 1-hydroxy-1,1-Ethanediyl ester
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