1-Hydroxyethylidene-1,1-diphosphonic acid

1-Hydroxyethylidene-1,1-diphosphonic acid

Product Details:

  • Usage Used as scale and corrosion inhibitor for water treatment
  • Appearance Liquid or powder
  • Shelf Life 1 Years
  • CAS No 2809-21-4
  • Molecular Formula C2H8O7P2
  • Application Industrial
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1-Hydroxyethylidene-1,1-diphosphonic acid Price And Quantity

  • 24 Metric Ton

1-Hydroxyethylidene-1,1-diphosphonic acid Product Specifications

  • Liquid or powder
  • Used as scale and corrosion inhibitor for water treatment
  • 1 Years
  • 2809-21-4
  • Industrial
  • C2H8O7P2

1-Hydroxyethylidene-1,1-diphosphonic acid Trade Information

  • Letter of Credit (L/C) Telegraphic Transfer (T/T) Letter of Credit at Sight (Sight L/C) Delivery Point (DP) Days after Acceptance (DA)
  • Yes
  • If order is confirmed we will reimburse the sample cost
  • 25kg bags
  • Eastern Europe Middle East Africa Western Europe Central America South America Asia

Product Description

1-Hydroxyethylidene-1,1-diphosphonic acid  (HEDP) 90%

Typical specification




White free flowing crystalline powder

Active content (as HEDP), %


Active content (as HEDP.H2O), %


pH (1% solution), 20 C


Iron content (Fe ppm)


Phosphorous acid as PO3, %


Phosphoric acid as PO4, %


Chloride as Cl , % w/w


1-Hydroxyethylidene-1,1-diphosphonic acid  (HEDP) 60% liquid is available

  • Melting point:198~199
  • Density 1.45 (60% aq.)
  • form :Powder
  • color : white
  • Water Solubility :Soluble in water.
  • Stability:Stable. Incompatible with strong oxidizing agents.

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