Chelating Agents · Organophosphonate

HEDP (Etidronic Acid) 60% Solution

C₂H₈O₇P₂CAS 2809-21-4HEDP
Water Treatment

Organophosphonate scale and corrosion inhibitor for cooling towers and boiler systems, with dual chelating and threshold action.

Certificate of Analysis — Typical ValuesRef. batch pattern
Assay (HEDP)60.0% min
Phosphorous Acid2.0% max
Chloride (Cl)0.3% max
Iron (Fe)10 ppm max
AppearanceColorless to pale yellow liquid
Density (20°C)1.36–1.40 g/cm³

Typical values shown. Each shipment ships with a batch-specific COA from an independent lab.

Documents issued with this product

  • SDSSafety Data Sheet, GHS-aligned
  • COACertificate of Analysis, batch-specific
  • C/OCertificate of Origin
  • DGDDangerous Goods Declaration, where applicable

Documents are issued once your order is confirmed and are matched to the batch you receive, not a generic template.