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Product name
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1-Hydroxyethylidene-1,1-diphosphonic acid
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Other name
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HEDP
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Chemical name
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(1-hydroxyethylene)diphosphonicacid;(1-hydroxyethylidene)bis-phosphonicaci;(1-hydroxyethylidene)di-phosphonicaci;(hydroxyethylidene)diphosphonicacid;1,1,1-ethanetrioldiphosphonate;1000sl;1-hydroxy-1,1-diphosphonoethane;1-Hydroxyethanediphosphonica
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Cas number
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2809-21-4
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EC#
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220-552-8
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Molecular Formula
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C2H8O7P2
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Molecular Weight
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206.03
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Molecular Structure
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Technical Data
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 Specs orCOAMSDSInquriy
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Properties
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Active content (as acid)% : 58.0-62.0
Phosphorous acid(as PO33-) %:≤2.5
Phosphoric acid(as PO43-)%: ≤0.7
Chloride (as Cl-) %: ≤0.50
pH(1% solution): ≤ 2.0
Density(20°C) g/cm3 : 1.39 – 1.49
Calcium sequestration mg/g: ≥500
Appearance:colorless to pale yell
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Toxicity
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Applications
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A scale and synergistic corrosion inhibitor for iron rust and mineral scale from pipes of cooling circulation water units and boilers; Metal chelate agent for color fixing and bleaching in textile; Complexing agent for electron plate and scale cleaning ag
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Packing
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Normally in 250kg net Plastic Drum, IBC Drum can also be used as required.
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Formulation
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60%
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