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CAS:2809-21-4
MF:C2H8O7P2
MW:206.03
EINECS:220-552-8
Synonyms:ETHANE-1-HYDROXY-1,1-DIPHOSPHONICACID,95+%; (1-Hydroxyethylidene)biphosphonicacid; HydroxyethylideneDiphosphonicacid(HEDP); 1-Hydroxyethylidene-1,1-diphosphonicacid,min.95%HEDP
What is ETIDRONIC ACID CAS 2809-21-4？
Hydroxyethylenediphosphonic acid, also known as HEDP, is a diphosphonate compound used in dish soap, water purification processes, cosmetics and pharmaceutical production. The salt produced by this acid has the formula MnHEDP (M is the cation and n is the number of M, up to 4).
Specification
| Item | Specification |
| Melting point | 198~199℃ |
| Boiling point | 578.8±60.0 °C |
| Density | 1.45 (60% aq.) |
| Vapor pressure | 0Pa at 25℃ |
| LogP | -3.5 |
| Acidity coefficient (pKa) | 1.35, 2.87, 7.03, 11.3(at 25℃) |
Application
Hydroxy-ethylenediphosphonic acid is a new type of chlorine-free electroplating complexing agent, which is used as the main agent for water quality stability in circulating cooling water system and plays the role of corrosion inhibition and scale inhibition.Hydroxyethylenediphosphonic acid is a kind of cathodic corrosion inhibitor and a kind of non-chemical equivalent scale inhibitor. When combined with other water treatment agents, it shows an ideal synergistic effect.
Packaging
Usually packed in 200kg/drum, and also can be do customized package.
Related keywords
1-Hydroxyethan-1,1-diphosphonsure; 1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONICACIDHEDP; 1-Hydroxyethylidene-1,1-bis-(phosphonicacid); 1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONICACID,98%HEDP.
