HEDP liquied

1.HEDP:60%, the same with dequest 2010. 2.Cooling ,boiler,cleanes,swimming pool water treatmen. 3.NSF, EMS ISO certificate

 Chemical name:1-Hydroxyethylidene-1,1-Diphosphonic Acid(HEDP)

  

Abbreviation: HEDP(dequest 2010)

Molecular Formula: C2H8O7P2

Molecular Weight: 206

  

CAS Number: 2809-21-4

 

Application Notes: HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals’ surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature 250°C. 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).

Recommended Uses: 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.

 

Typical Properties:

Appearance Water white to pale yellow liquid Active Acid (%) 60.0 min Phosphorous acid as PO33- (%) 2.0 max Phosphorous acid as PO43- (%)  0.8 max Chloride (as Cl,ppm) 100 max Sequestrant value(CaCO3)mg/g as product at PH 11-12 500 min PH(1% solution)@20°C 2.0 max Density at 20°C,g/cm3 1.440 min Iron, as Fe (ppm): 35.0max Colour APHA (Hazen): 80 max

HEDP liquied