Etidronic Acid

Etidronic acid (INN) or 1-hydroxyethane 1,1-diphosphonic acid (HEDP) is a bisphosphonate used in detergents, water treatment, cosmetics and pharmaceutical treatment.

An etidronate is a salt of etidronic acid, abbeviated MnHEDP (M: is a cation, n: number of M maximum 4).

Read more about Etidronic Acid:  Chelating Agent and Anti-oxidant