2-Phosphonobutane-1,2,4-Tricarboxylic Acid (PBTC) is a high-efficiency scale and corrosion inhibitor designed for demanding industrial water treatment environments. By integrating the structural advantages of both phosphoric acid and carboxylic acid groups, PBTC delivers superior performance in preventing mineral scale formation and protecting metal surfaces from degradation, especially in systems characterized by high temperature and high hardness.
Engineered for versatility, PBTC serves as an exceptional stabilizer for zinc salts and exhibits outstanding chlorine oxidation tolerance. It is widely deployed in circulating cooling water systems, oilfield refill water systems, and as a powerful chelating agent in industrial cleaning. Whether used independently or in synergy with copolymers and organophosphines, PBTC ensures optimal system efficiency and extended equipment lifespan under extreme alkaline and high-concentration conditions.
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 | Fe / Chloride | 10.0 ppm max |
Key Advantages
Superior Thermal Stability
Outperforms traditional organophosphines in high-temperature environments, ensuring consistent scale inhibition.
Chlorine Tolerance
Excellent resistance to chlorine oxidation, maintaining efficacy in heavily treated water systems.
Zinc Salt Stabilization
Acts as an elite stabilizer for zinc salts, preventing precipitation and enhancing overall corrosion protection.
Extreme Condition Versatility
Engineered to function efficiently in high hardness, high alkali, and high concentration indices.
Composite Synergy
Seamlessly integrates with copolymers, imidazole, and other water treatment chemicals for enhanced results.
Dual-Functional Structure
Combines phosphoric and carboxylic acid groups for a powerful double-action inhibition mechanism.
Product Gallery
Management Platforms
Flexible Packaging
Available in 200L plastic drums or 1000L IBC tanks to suit various logistical needs.
Dosage Control
Optimized performance achieved at a preferred dosage range of 5-15mg/L when used alone.
Safe Storage
Stable shelf life of one year when stored in a cool, dry, and shaded environment.
Safety Protocols
Acidic nature requires protection; avoid contact with skin and eyes to ensure workplace safety.
Application Range
Broadly applicable from industrial cooling towers to complex oilfield water injection systems.
Quality Assurance
Strict adherence to specifications for active acid content and impurity limits.
Investment Return Comparison
| Performance Metric | Standard Phosphonates | PBTC Solution |
|---|---|---|
| High-Temp Stability | Moderate | Excellent |
| Chlorine Resistance | Limited | High Tolerance |
| Zinc Salt Synergy | Basic | Superior Stabilization |
| Alkali Tolerance | Low to Medium | High Efficiency |
| Maintenance Cost | Standard | Reduced (due to longevity) |
Frequently Asked Questions
PBTC possesses a unique structure combining phosphoric and carboxylic acid groups, which grants it significantly better thermal stability and chlorine tolerance compared to standard organophosphines.
Yes, PBTC is specifically designed to maintain high efficiency in situations involving high alkali, high hardness, and high concentration indices.
When utilized alone in water treatment systems, a dosage range of 5-15mg/L is generally preferred for optimal scale and corrosion inhibition.
Since PBTC is acidic, it should be stored in a dry, shaded room. Personnel should avoid contact with skin and eyes; in case of contact, rinse immediately with plenty of water.
PBTC is highly compatible and commonly used in combination with zinc salts, copolymers, other organophosphines, and imidazole to enhance water treatment efficacy.
Its primary applications include circulating cooling water systems, oilfield refill water systems, and use as a chelating agent or metal detergent in industrial cleaning fields.
