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1-Hydroxyethylidene-1,1-diphosphonic acid

1-Hydroxyethylidene-1,1-diphosphonic acid

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

Typical specification

 Item

 Standard

Appearance

White free flowing crystalline powder

Active content (as HEDP), %

90min

Active content (as HEDP.H2O), %

98min

pH (1% solution), 20 °C

2max

Iron content (Fe ppm)

5max

Phosphorous acid as PO3, %

0.8max

Phosphoric acid as PO4, %

0.5max

Chloride as Cl , % w/w

0.01max

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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