1-Hydroxyethylidene-1,1-diphosphonic acid; HEDPA(ZF111XY)

Chemical Structural Formula :
　　　　　　
Performance & Characteristic:
　　 This product has great dirt retardant property to calcium carbonate, calcium sulfate and barium sulfate.
　　 Strong chelation to metallic ion.
　　 Good synergistic effect when use together with other corrosion inhibitor and scale remover.
　　 Good Good resistance to high temperature and antioxidation.
　　 High-effective corrosion mitigation property to carbon steel equipment.
　　 Non-toxic, do not pollute environment.

Uses :
　　 Corrosion inhibitor and scale remover for various recirculated cooling water and boiler water; Metal chelating agent and dye fixing agent in printing and textile industry; Electroplating complexing agent and metal scale remover.

Quality Index:
　 Appearance：colorless or light yellow transparent liquid
　　 Active Component Content：≥50.0%
　　 Content of Ortho phosphorous acid(PO₃^3-)：≤2.0%
　　 Content of Phosphoric acid(PO₄^3-)：≤1.0%
　　 Content of Chloride(Cl-)：≤0.5%
　　 PH Value(1% aqueous solution)：≤2.0
　　 Density(20℃)：≥1.34g/cm³
　　 Calcium chelation value：≥450mg/g

Packing & Storage :
　　 This product should pack in plastic drum, 25kg net weight per drum, store in cool and dry place, one year storage period.