2-Hydroxy Phosphonoacetic Acid
CAS Number: 23783-26-8
Molecular Formula: C2H5O6P
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 EDTMPA.Na5. When built with low molecular polymers, its corrosion inhibition effect is even better.
It is mainly used as cathode corrosion inhibitor in oilfield refill water system in fields such as steel & iron, petrochemical, power plant and medical industries. When built with zinc salt, the effect is even better.
Dark brown liquid
Solid content (%)
Phosphorous acid as PO33- (%)
PH (1% solution)
Density at 20°C,g/cm3
Iron, as Fe (ppm)
Package and Storage:
Normally in 200L HDPE drum and 1000L IBC.
Storage for 10 months in room shady and dry place.
Acidity, avoid contact with eye and skin, once contacted, flush with plenty water.