HPAA
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HPAA

HPAA is chemically stable, hard to be hydrolyzed, hard to be destroyed by acid or alkali, safe 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.

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Product Description

2-Hydroxy Phosphonoacetic Acid (HPAA)


CAS No. 
 23783-26-8
Molecular Formula:
C2H5O6P  
Molecular weight: 
156
Structural Formula:



Properties:

HPAA is chemically stable, hard to be hydrolyzed, hard to be destroyed by acid or alkali, safe 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 a cathode corrosion inhibitor in oilfield refill water systems in fields such as steel & iron, petrochemical, 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.

Synonyms:

HPAA;HPA;

2-Hydroxyphosphonocarboxylic Acid;

Hydroxyphosphono-acetic acid;

2-HYDROXY PHOSPHONOACETIC ACID


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