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1-Hydroxyethylidene-1,1-Diphosphonic acid

Abbreviation: HEDP

Common Trade Names: Dequest 2010, Briquest ADPA-60AW, Unihib 106

Molecular weight: 206


Appearance Clear, Colorless to pale yellow aqueous solution

Active Content: 58.0 - 62.0 %
Phosphorous acid (as PO3 3- ) : 2.0% max
Phosphoric acid (as PO4 3- ) : 0.8% max
pH (1% Water Solution) : 2.0 max
Density (200C) g/cm3: 1.430 - 1.460
Iron: 10ppm max
Chlorides (as CL-) : 100 ppm max
Color (APHA) : 30 max.
Ca sequestration mg CaCO3/g: 480 min
Acetic Acid: 1.0% 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 also available with its Sodium Salt solution.
Available Colors
Colorless to pale yellow
Condition of Goods
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