2-Phosphonobutane-1,2,4-Tricarboxylic Acid Sodium Salt (PBTC•Na4) is a high-performance composite scale and corrosion inhibitor designed for demanding industrial water treatment. By integrating both phosphonic acid and carboxylic acid groups, PBTC•Na4 provides exceptional stabilization and inhibition properties, particularly in environments characterized by high temperatures and extreme hardness.
This versatile chemical agent is widely utilized in circulating cooling water systems and oilfield refill water systems. It is highly effective when used in synergy with zinc salts and copolymers, ensuring optimal system efficiency by preventing mineral deposits and mitigating metallic corrosion under high alkaline and high concentration index conditions.
Detailed Parameters
| CAS No. | 40372-66-5 | Molecular Formula | C7H7O9P•Na4 |
|---|---|---|---|
| Molecular Weight | 358 | Appearance (Liquid) | Colorless to yellowish transparent liquid |
| Appearance (Solid) | White crystal powder | Active Content (PBTCA) | 30.0% min (Liq) / 64.0% min (Sol) |
| Active Content (PBTC•Na4) | 40.0% min (Liq) / 85.0% min (Sol) | Total Phosphoric Acid | 10.5% min (Liq) / 22.5% min (Sol) |
| PH (1% Solution) | 9.0-12.0 (Liq) / 4.0-6.0 (Sol) | Density (20℃) | 1.35 g/cm3 min (Liquid) |
Key Advantages
Superior Thermal Stability
Offers scale inhibition properties under high-temperature conditions that significantly outperform traditional organophosphines.
Chlorine Tolerance
Exhibits excellent resistance to chlorine oxidation, ensuring long-term stability in chemically treated water systems.
Zinc Salt Stabilization
Highly effective at improving the solubility of zinc salts, acting as an excellent stabilizer for synergistic treatments.
Extreme Condition Adaptability
Engineered to operate efficiently in high hardness, high alkalinity, and high concentration index environments.
Dual Functional Groups
The combination of phosphonic and carboxylic acid groups ensures comprehensive scale and corrosion inhibition.
Versatile Application
Functions as a chelating agent and metal detergent in industrial lavation and specialized cleaning fields.
Product Gallery
Management Platforms
Flexible Packaging
Available in 200L plastic drums, 1000L IBC tanks for liquids, and 25kg bags for solid powder.
Synergistic Pairing
Optimized for use with copolymers, imidazole, and other water treatment chemicals.
Liquid Storage
Stored for up to ten months in a shady, dry room to maintain chemical potency.
Solid Storage
Powder form remains stable for one year when kept in a cool, dry, and shaded environment.
Safety Protocol
Weakly alkaline nature requires standard labor protection to avoid skin and eye contact.
Quality Control
Strict adherence to active content specifications for both liquid and crystalline forms.
Investment Return Comparison
| Performance Metric | Standard Organophosphines | PBTC•Na4 Solution |
|---|---|---|
| High Temp Stability | Moderate | Excellent |
| Chlorine Tolerance | Low to Medium | High |
| Zinc Stabilization | Limited | Superior |
| Alkalinity Adaptability | Standard | High Efficiency |
| Overall ROI | Baseline | High (Reduced Downtime) |
Frequently Asked Questions
PBTC•Na4 is primarily used as a high-efficiency composite scale and corrosion inhibitor in circulating cooling water systems and oilfield refill water systems, especially where high temperatures and alkalinity are present.
Compared to standard organophosphines, PBTC•Na4 offers significantly better scale inhibition properties at high temperatures and superior tolerance to chlorine oxidation.
Yes, due to its properties as a chelating agent, PBTC•Na4 is frequently used as a metal detergent in industrial lavation and cleaning fields.
It is commonly used in synergy with zinc salts, copolymers, organophosphines, and imidazole to achieve a comprehensive water treatment effect.
The solid white crystal powder should be stored in a shady and dry room; it has a shelf life of one year under these conditions.
PBTC•Na4 is weakly alkaline. While not highly toxic, it is recommended to use labor protection and avoid contact with skin and eyes. In case of contact, rinse immediately with plenty of water.




