1. Main manufacturer and supplier in China. 2. Producing the HEDP from yellow phosphorous and liquide chlorine.

Application Notes: Noted for its excellent CaCO3 scale inhibition and chlorine stability.

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	White crystalline powder
Active Acid as HEDP (%)	90.0 min
Phosphorous acid as PO33- (%)	2.5 max
Phosphorous acid as PO43- (%)	0.7 max
PH(1% solution)@20oC	2.0 max
Chloride (as Cl,%)	1.0 max

water treatment chemical - HEDP Powder