Product Description
1.Item: Water treatment agent raw material HEDP 50%
2.Purity:50-60% to choose
3.Feature: colorless or light yellow liquid
4.Description:
HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn etc. metal ions and form stable complex compound. It can dissolve the oxidized materials on these metals’ surfaces. Under 250℃ HEDP shows excellent scale and corrosion inhibition ability. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.
5.Note: pls kindly note that it will be harmful if keeping the HEDP agent contacted with your skin .Once contacted ,pls flow your skin .
Specification of HEDP50% for water treatment:
| Items | Water treatment agent raw material HEDP 50% |
| Appearance | Clear, Colorless to pale yellow aqueous solution |
| Active content (HEDP)% | 58.0-62.0 |
| Active content (HEDP·H2O)% | - |
| Phosphorous acid (as PO33-)% | 1.0 max |
| Phosphoric acid (asPO43- )% | 0.6 max |
| Chloride (as Cl-) ppm | 100.0 max |
| pH (1% solution) | 2.0 max |
| Density (20℃)g/cm3 | 1.43-1.47 |
| Fe,mg/L | 10.0 max |
| Colour APHA (Hazen) | 30.0 max |
| Acetic acid % | 0.5 max |
| Ca sequestration (mg CaCO3/g) | 500.0 min |
