1-Hydroxyethylidene-1,1-Diphosphonic acid(HEDP) CAS No. 2809-21-4 Abbreviation: HEDP Molecular weight: 206 Structural Formula SPECIFICATIONS: items index Appearance Colorless or light yellow transparent liquid White crystal powder Active content (HEDP)% 58.0-62.0 89.0 min Phosphorous acid (as PO33-)% 2.0 max 0.5 max Phosphoric acid (asPO43- )% 0.8 max 0.5 max Chloride (as Cl-)% 0.01 max 0.01 max pH (1% solution) 2 max 2 max Density (20℃)g/cm3 1.430 - 1.460 - Fe ion ppm 10 max 20 max APPLICATIONS: It is mainly used as a Scale & Corrosion Inhibitor, chelating (Sequestrating), deflocculating agent in Cooling and Boiler water treatment, Textile Dying, Detergents etc. Packing: Normally In 250kg net Plastic Drum, IBC's can also be used as required..HEDP is available with lower Chloride level, lower Iron level, lower Arsenic level
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