1-Hydroxyethylidene-1,1-Diphosphonic acid(HEDP)
CAS No. 2809-21-4 Molecular Formula: C2H8O7P2
Abbreviation: HEDP Molecular weight: 206
Structural Formula
Spceification:
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items
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index
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Appearance
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Colorless or light yellow transparent liquid
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White crystal powder
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Active content (HEDP)%
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58.0-62.0
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89.0 min
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Phosphorous acid (as PO33-)%
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2.0 max
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0.5 max
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Phosphoric acid (asPO43- )%
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0.8 max
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0.5 max
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Chloride (as Cl-)%
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1.0 max
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0. 1 max
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pH (1% solution)
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2 max
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2 max
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Density (20℃)g/cm3
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1.430 - 1.460
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-
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Fe ion ppm
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10 max
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20 max
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Application:
It is mainly used as a Scale & Corrosion Inhibitor, chelating (Sequestrating), deflocculating agent in Cooling and Boiler water treatment, Textile Dying, Detergents etc.
Packing:
HEDP liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required HEDP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients. Storage for ten months in room shady and dry place.