Bis(HexaMethylene Triamine Penta (Methylene Phosphonic Acid)) BHMTPMPA
  Polyamino Polyether Methylene Phosphonae
  HexaMethyleneDiamineTetra (MethylenePhosphonic Acid) HMDTMPA
  2-Hydroxyphosphonocarboxylic Acid (HPAA)
  Polyhydric alcohol phosphate ester (PAPE)
  2-Phosphonobutane -1,2,4-Tricarboxylic Acid
  Diethylene Triamine Penta (Methylene Phosphonic Acid) (DTPMPA)
  Ethylene Diamine Tetra (Methylene Phosphonic Acid)
  Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium (EDTMPS)
  1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
  Amino Trimethylene Phosphonic Acid (ATMP)
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2-Hydroxyphosphonocarboxylic Acid (HPAA)
Product Model:[CAS No.]23783-26-8
CAS No.  23783-26-8
Molecular Formula:   C2H5O6P                  Molecular weight: 156
Structural Formula:

HPAA is chemically stable, hard to be hydrolyzed, hard to be destroyed by acid or alkali, safety in use, no toxicity, no pollution. HPAA can improve zinc solubility. Its corrosion inhibition ability is 5-8 times better than that of HEDP and EDTMP. When built with low molecular polymers, its corrosion inhibition effect is even better.





Dark umber transparent viscous liquid

Solid content %


Phosphorous acid(as PO33-)%

4.0 max

Density (20”ę)g/cm3

1.30 min

pH(1% solution)


HPAA is mainly used as cathode corrosion inhibitor in oilfield refill water system in fields such as steel & iron, petrochemcal, power plant and medical industries. When built with zinc salt, the effect is even better.

Package and Storage:
Normally In 250kg net Plastic Drum, IBC drum can also be used as required. Storage for one year in room shady and dry place.

HPAA;HPA;2-Hydroxyphosphonocarboxylic Acid;Hydroxyphosphono-acetic acid;2-HYDROXY PHOSPHONOACETIC ACID
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