HEDP [CAS No.] 2809-21-4 Dequest: 2010 Molecular Formula: C2H8O7P2 Molecular weight: 206 Properties: This product is an organophosphoric acid corrosion inhibitor, It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds, thus it can dissolve the oxidized materials on these metals’ surfaces. HEDP shows excellent antiscale corrosion inhibition effects under temperature 250℃. It has good stability under high pH value, is hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its properties of acid/alkali and chlorine oxidation resistance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, especially with calcium ion to form capsule polymer chelating complex. Therefore, this product has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effective performance. Currency: USD Unit Price: Quantity: Delivery: 20days