2-Hydroxyphosphonoacetic acid (HPAA), identified by CAS No. 23783-26-8, is a high-performance specialty chemical designed for superior corrosion inhibition and scale control. Known for its exceptional chemical stability, HPAA is resistant to hydrolysis and remains durable under extreme acidic or alkaline conditions, ensuring consistent performance in demanding industrial environments.
Specifically engineered for use as a cathode corrosion inhibitor, HPAA significantly enhances zinc solubility and provides corrosion protection that is 5-8 times more effective than standard HEDP and EDTMP. Its non-toxic and pollution-free profile makes it an ideal choice for sustainable water treatment solutions across the petrochemical, power plant, and metallurgical sectors.
Detailed Parameters
| Appearance | Dark umber liquid | Solid Content (%) | 50.0 min |
|---|---|---|---|
| Total Phosphonic Acid (%) | 25.0 min | Phosphoric Acid (%) | 1.50 max |
| Density (20℃) | 1.30 g/cm³ min | pH (1% solution) | 3.0 max |
| Molecular Formula | C2H5O6P | Molecular Weight | 156 |
| CAS No. | 23783-26-8 | Chemical Stability | High/Hydrolysis Resistant |
Key Advantages
Superior Inhibition
Offers 5-8 times better corrosion inhibition compared to HEDP and EDTMP, ensuring long-term asset protection.
Extreme Stability
Chemically stable and highly resistant to hydrolysis by strong acids or alkalis for extended service life.
Zinc Solubility
Significantly improves zinc solubility, maximizing the synergy when used in zinc salt formulations.
Eco-Friendly
Non-toxic and pollution-free composition, aligning with modern environmental and safety regulations.
Synergistic Effect
Enhanced performance when combined with low molecular polymers for maximum corrosion prevention.
Versatile Application
Ideal for oilfield refill water systems in steel, petrochemical, and power generation industries.
Product Gallery
Management Platforms
Packaging Options
Available in 200L plastic drums, 1000L IBC tanks, or customized packaging per client needs.
Storage Standards
Stored in shady, dry rooms for up to one year to maintain maximum chemical potency.
Safety Protocols
Strict guidelines for acidic liquid handling to prevent contact with skin and eyes.
Quality Control
Rigorous testing for total phosphonic acid content and density to ensure batch consistency.
Logistics Chain
Optimized supply chain for hazardous chemical transport and timely global delivery.
Compliance Mgmt
Full documentation providing SDS and technical specifications for regulatory approval.
Investment Return Comparison
| Feature | Standard HEDP/EDTMP | HPAA Solution |
|---|---|---|
| Corrosion Inhibition | Baseline Efficiency | 5-8x Higher Efficiency |
| Chemical Stability | Moderate | High (Acid/Alkali Resistant) |
| Zinc Synergy | Standard | Superior Solubility Improvement |
| Replacement Rate | High Dosage Required | Low Dosage / High Potency |
| Maintenance Cost | Frequent Treatment | Reduced Intervention Cycles |
Frequently Asked Questions
HPAA is primarily used as a cathode corrosion inhibitor in oilfield refill water systems, specifically within the petrochemical, power plant, and steel industries.
HPAA provides 5 to 8 times the corrosion inhibition capacity of HEDP and EDTMP, making it significantly more efficient for high-risk environments.
Yes, when combined with low molecular polymers, the corrosion inhibition effect of HPAA is further enhanced, providing a synergistic protection layer.
HPAA is designed to be non-toxic and non-polluting, ensuring a safer profile for industrial water treatment compared to traditional harsh chemicals.
It should be stored in a dry, shady room. Under these conditions, the product remains stable and effective for up to one year.
As HPAA is an acidic liquid, operators must wear protective gear. Avoid contact with eyes and skin; in case of contact, rinse immediately with plenty of water.




