2-Phosphonobutane-1,2,4-Tricarboxylic Acid (PBTC) is a high-performance scale and corrosion inhibitor characterized by its unique structural combination of phosphoric acid and carboxylic acid groups. Engineered for demanding industrial environments, PBTC provides exceptional stability and efficiency, particularly in systems where high temperature, high hardness, and high alkalinity are prevalent.
Designed for maximum versatility, PBTC serves as an excellent stabilizer for zinc salts and exhibits superior chlorine oxidation tolerance compared to traditional organophosphines. Whether used in circulating cooling water systems, oilfield refill water systems, or as a chelating agent in industrial cleaning, PBTC ensures optimal system longevity by preventing mineral scale buildup and mitigating corrosive wear.
Detailed Parameters
| CAS No. | 37971-36-1 | Molecular Formula | C7H11O9P |
|---|---|---|---|
| Molecular Weight | 270.13 | Appearance | Colorless or light yellow transparent liquid |
| Active Acid (%) | 50.0 min | Phosphorous Acid (%) | 0.5 max |
| Phosphoric Acid (%) | 0.2 max | Density (20℃) | 1.27 g/cm3 min |
| pH (1% solution) | 1.5 ~ 2.0 | Iron (Fe) / Chloride | 10.0 ppm max |
Key Advantages
Superior Heat Resistance
Offers significantly better antiscale performance under high-temperature conditions compared to standard organophosphines.
Chlorine Tolerance
Possesses excellent resistance to chlorine oxidation, ensuring long-term stability in treated water systems.
Zinc Salt Synergy
Acts as a high-efficiency stabilizer for zinc salts, improving solubility and overall composite effectiveness.
Extreme Environment Fit
Specifically formulated for high hardness, high alkali, and high concentration index applications.
Multi-Functional Use
Works effectively as both a scale inhibitor and a metal detergent/chelating agent in lavation fields.
Optimized Dosage
Achieves maximum efficiency with a low preferred dosage range of 5-15mg/L when used independently.
Product Gallery
Management Platforms
Flexible Packaging
Available in 200L plastic drums, 1000L IBC tanks, or customized packaging to meet specific client requirements.
Stability Storage
Guaranteed shelf life of one year when stored in a shady, dry, and well-ventilated room.
Safety Protocols
Acidic nature requires strict avoidance of contact with skin and eyes to ensure workplace safety.
Rapid Response
Immediate water rinsing protocols established for any accidental body splashes during handling.
Logistics Efficiency
Optimized supply chain for rapid delivery of liquid chemical additives to industrial sites.
Quality Assurance
Strict adherence to purity standards for active acid content and impurity limits (Fe/Cl).
Investment Return Comparison
| Feature | Standard Phosphonates | PBTC Solution |
|---|---|---|
| Thermal Stability | Moderate | Exceptional (High Temp) |
| Chlorine Resistance | Lower | Very High |
| Hardness Tolerance | Standard | High Alkaline/Hardness |
| Zinc Compatibility | Basic | Excellent Stabilizer |
| Maintenance Cost | Higher Frequency | Reduced Downtime |
Frequently Asked Questions
PBTC is primarily used as a scale and corrosion inhibitor in circulating cooling water systems and oilfield refill water systems. It is also used as a chelating agent in industrial cleaning (lavation) fields.
PBTC possesses a structural advantage combining phosphoric and carboxylic acid groups, which makes its antiscale properties significantly more stable and effective at high temperatures compared to most organophosphines.
PBTC can be used alone with a preferred dosage of 5-15mg/L. However, it is often used in composite formulations with zinc salts, copolymers, imidazole, and other water treatment chemicals for enhanced synergy.
Yes, PBTC is specifically suitable for situations involving high alkali, high hardness, and high concentration indices, making it ideal for aggressive water chemistry.
Since PBTC is acidic, you must avoid direct contact with eyes and skin. In case of contact, rinse the affected area immediately with plenty of water.
PBTC should be stored in a shady, dry place. Under these conditions, the product is stable for a storage period of one year.
