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HPAA

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HPAA has good chemical stability, hard to be hydrolyzed, and hard to be damaged by acid or alkali, safe and reliable to use, non-toxic and pollution-free.

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  • HPAA
  • ThFine
  • CAS No. 23783-26-8
  • 2-Hydroxy Phosphonoacetic Acid 

2-Hydroxy Phosphonoacetic Acid

(HPAA)


CAS No.: 23783-26-8                           EINECS No.: 405-710-8

Molecular Formula: C2H5O6P            Molecular Weight: 156

RIDADR: UN 3265 8/PG III

Structural Formula:

 

HPAA.gif


Properties: 

HPAA has good chemical stability, hard to be hydrolyzed, and hard to be damaged by acid or alkali, safe and reliable to use, non-toxic and pollution-free. HPAA can improve the solubility of zinc, with strong inhibition, HPAA has better inhibition performance than HEDP, EDTMP. HPAA is mainly used as the cathodic corrosion inhibitor for metals, but also widely used to realize corrosion inhibition and scale inhibition in circulating cooling water system of steel, petrochemical, electric power, pharmaceutical and other industries. HPAA is specially suitable for low hardness and easy-corrosive water quality.


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:

The organic corrosion inhibitors of which HPAA combines with low molecular weight polymer have excellent performance. When built with zinc salt, the effect is even better. 


Package and Storage:

Normally in 200L HDPE drum, 1000L IBC, or customers’ requirement.

Storage for ten months in shady room and dry place.

Package


Safety Protection:

Avoid contact with eye and skin, once contacted, flush with water.


Synonyms:

HPAA; HPA;

2-Hydroxy Phosphonoacetic Acid;

2-Hydroxyphosphonocarboxylic Acid;

Hydroxyphosphono-acetic acid;




Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agent


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