Hydroxyethylene diphosphonic acid (HEDP) is an organic phosphate compound with the following chemical structure:
HOCH2CH2 (PO3OH) 2HOCH2 CH2 (PO3 OH) 2
This compound is an effective scale inhibitor and corrosion inhibitor, capable of forming stable complexes with various metal ions and dissolving oxides on metal surfaces. It has a wide range of applications in water treatment, industrial cleaning, electroplating, and other fields. HEDP has stable chemical properties and is not easily hydrolyzed and decomposed at high temperatures and pH values. It has good resistance to acid, alkali, and chlorine oxidation
