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2-Hydroxy Phosphonoacetic Acid (HPAA)

2-Hydroxy Phosphonoacetic Acid (HPAA)

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

CAS No. 23783-26-8

Molecular Formula: C2H5O6P

Molecular weight: 156


 

产品详情

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

project

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.


Safety Protection

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