Project Description

Good producer 2809-21-4 superior manufacturer 1-Hydroxyethylidene-1,1-Diphosphonic Acid(HEDP)


  • Brand: BaiFuChem

  • Product Name: 1-Hydroxyethylidene-1,1-Diphosphonic Acid(HEDP)

  • Synonyms: HEDP, 1-Hydroxyethylidenediphosphonic acid

  • CAS No: 2809-21-4

  • MF: C2H8O7P2

  • MW: 206.03

  • Packaging: 200 kg/Plastic ,Iron drum,or according to the requirements of the customers


1. This product is the main material of non-cyanide electroplating. It is formulated into a non-cyanide copper electroplating solution, and the bonding force of the copper layer directly electroplated on the sodium iron is good. The coating is smooth and the color is good.
2. It is often used as a scale and corrosion inhibitor in boiler water, circulating water, and oilfield water injection treatment.
3. This product is a new type of chlorine-free electroplating complexing agent, used as the main agent of stable water quality in the circulating cooling water system, and has the effect of corrosion and scale inhibition.
4. Phosphorylation reagent for protected serine and pyranose.


Items Specification
Appearance Colorless or pale yellow transparent liquid
Active content (as HEDP) ≥60.0%
Phosphorous acid(as PO33- ) ≤ 2.0%
Phosphoric acid (as PO43- ) ≤ 1.0%
Chloride(as Cl) ≤ 0.02%
pH (1%water solution) ≤ 2.0
Fe ion ≤20 ppm

Product Storage

Keep undercool, dry and well ventilated warehouses, guard against fire.

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