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2-Hydroxy Phosphonoacetic Acid

HPAA

CAS No. 23783-26-8

Molecular Formula: C2H5O6P

Molecular weight: 156

Synonyms: Hydroxyphosphono-acetic Acid

Structural Formula:

Properties:

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.

Specification:

Items                                                                                               Index

Appearance                                                                          Dark umber liquid

Solid content %                                                                         50.0 min

Total phosphonic acid(as PO43-)%                                        25.0 min

Phosphoric acid(as PO43- )%                                                 1.5 max

Density (20℃) g/cm3                                                             1.30 min

pH(1% water solution)                                                           3.0 max

Usage:

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:

200L plastic drum,IBC(1000L),customers’ requirement.

Storage for one year in shady room and dry place.

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