Etidronic Acid HEDP CAS 2809-21-4

CAS: 2809-21-4
Purity: 60%min
Molecular Formula: C2H8O7P2
Molecular Weight： 206.03
EINECS： 220-552-8
Storage Period： 1 year

Synonyms: ETHANE-1-HYDROXY-1,1-DIPHOSPHONICACID,95+%; (1-Hydroxyethylidene)biphosphonicacid; HydroxyethylideneDiphosphonicacid(HEDP); 1-Hydroxyethylidene-1,1-diphosphonicacid,min.95%HEDP; 1-Hydroxyethan-1,1-diphosphonsure; 1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONICACIDHEDP; 1-Hydroxyethylidene-1,1-bis-(phosphonicacid); 1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONICACID,98%HEDP

What is Etidronic Acid HEDP 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

Appearance	Clear colorless to pale tan liquid, free from foreign matter
Odor	Slight to none
Active Acid (%)	60.0 min
Phosphorous acid(%)	2.0 max
Phosphoric acid (%)	0.8 max
Chloride as Cl (ppm)	100 max
Sequestrant value mg/g as product at PH 11-12	500 min
PH	2.0 max
Density	1.440 min
Iron content	35.0 max
Colour	80 max

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.