... ,complexant 4. Best price 1.Product :Product name:Water treatment chemicals HEDP,1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP ... with other water treatment chemicals, it shows good synergistic effects. The solid state of HEDP is crystal powder, suitable for usage in ... agent in electronic fields and as additives in daily chemicals. 3. Specification:AppearanceWater white to pale yellow liquidActive ...