Sodium of Polyepoxysuccinic Acid (PESA) is a high-performance, multivariate scale and corrosion inhibitor engineered for industrial water treatment. Unlike traditional inhibitors, PESA is characterized by its non-phosphorous and non-nitrogenous composition, making it an environmentally sustainable choice for critical cooling and boiler systems. It exhibits superior inhibition and dispersion capabilities against calcium carbonate, calcium sulfate, calcium fluoride, and silica scale, consistently outperforming standard organophosphines in demanding environments.
Designed for versatility, PESA thrives in conditions of high alkalinity, extreme hardness, and elevated pH values. Its exceptional biodegradable properties and synergistic compatibility with chlorine and other water treatment chemicals allow it to operate efficiently under high concentration indices. Whether utilized in oilfield refill water, petrochemical plants, or membrane separation units, PESA provides a robust barrier against mineral buildup and metallic corrosion, ensuring optimal system longevity and efficiency.
Detailed Parameters
| CAS No. | 51274-37-4; 109578-44-1 | Molecular Formula | HO(C4H2O5M2)nH |
|---|---|---|---|
| Molecular Weight | 400-1500 | Appearance (Liquid) | Colorless or amber transparent liquid |
| Appearance (Solid) | White powder | Solid Content (Liquid) | 40.0% min |
| Solid Content (Powder) | 90.0% min | Density (20℃) | 1.30 g/cm3 min |
| pH (1% solution) | 10.0 - 12.0 | Storage Life | 10 Months (dry/shady) |
Key Advantages
Eco-Friendly Composition
Non-phosphorus and non-nitrogen formula ensures minimal environmental impact and full biodegradability.
Superior Scale Control
Excellent inhibition and dispersion for calcium carbonate, sulfate, fluoride, and silica scales.
Extreme Condition Stability
Maintains high performance in high alkaline, high hardness, and high pH value environments.
Powerful Synergism
Works synergistically with organophosphates and chlorine to enhance overall water treatment efficacy.
High Concentration Index
Capable of operating under high concentration indices without compromising system stability.
Multi-Industry Use
Versatile application from oilfield refill water to high-end detergent manufacturing.
Product Gallery
Management Platforms
Flexible Packaging
Available in 200L plastic drums, 1000L IBC, or 20kg bags to suit your logistics.
Industrial Application
Optimized for steel plants, petrochemicals, power plants, and medicine production.
Safety Protocols
Alkaline properties require strict labor protection and immediate rinsing upon contact.
Desalination Support
Ideal for desalination plants and membrane separation under high pH conditions.
Inventory Control
Stable storage for ten months when kept in a shady and dry environment.
Detergent Integration
Compatible with industrial detergent formulations for enhanced cleaning efficiency.
Investment Return Comparison
| Performance Metric | Standard Organophosphines | PESA Solution |
|---|---|---|
| Biodegradability | Low / Persistent | High / Biodegradable |
| Scale Inhibition | Standard Effectiveness | Superior (Multi-ion) |
| PH Tolerance | Moderate | Extreme High pH |
| Environmental Footprint | Contains P/N Elements | Non-Phosphorus/Nitrogen |
| Synergy Effect | Baseline | High Synergistic Gain |
Frequently Asked Questions
PESA is a non-phosphorous and non-nitrogenous inhibitor, offering superior biodegradability and more effective inhibition against a wider range of scales, including silica and calcium fluoride, especially in high pH environments.
Yes, PESA is highly effective for membrane separation and desalination plants, particularly in situations involving high alkalinity and high hardness.
To maintain quality for up to ten months, PESA should be stored in a dry, shady room away from direct sunlight and extreme temperatures.
Yes, PESA exhibits excellent synergism with chlorine and other common water treatment chemicals, enhancing the overall efficiency of the system.
Since PESA is alkaline, operators must wear proper protective gear. Avoid contact with eyes, skin, or clothing. If contact occurs, rinse immediately with plenty of water.
It is widely used in the petrochemical, power generation, steel manufacturing, pharmaceutical industries, oilfield refill water, and industrial detergent production.




