HPAA 50
2-Hydroxy Phosphonoacetic Acid
CAS No. 23783-26-8
C2H5O6P
Description
HPAA is chemically stable to acid or alkali. It improves zinc solubility. The corrosion inhibition effect is improved when built with low molecular polymers, leading to 5-8 times the efficiency compared with HEDP and EDTMP.
Application
HPAA is mainly used as a cathode corrosion inhibitor in
- Oilfield
- Steel and iron
- Petrochemical
- Power plant
- Water treatment additives
Specification
| Appearance (25oC) | Dark Umber Liquid |
| Solid Content | ≥50% |
| Active Content as HPAA | ≥45% |
| Phosphoric Acid as PO4 3− | ≤1.5% |
| Phosphorous Acid as PO3 3- | ≤4% |
| Density (20℃) | ≥1.3 g/cm3 |
| pH 1% in Water | 1-3 |
