PBTCA50 Scale Inhibitor
The scale inhibitor eMAI™ PBTCA50 is an organophosphonate scale inhibitor containing both phosphonic acid and carboxylic acid groups in its molecular structure. Under high-temperature, high-hardness, and high-pH water conditions—especially with high Fe³⁺ content—it delivers better scale inhibition than organic polyphosphonates. Compared with organic phosphates, its low phosphorus content makes it less prone to forming sparingly soluble calcium phosphonate. It also provides corrosion inhibition, acting as a high-efficiency corrosion inhibitor particularly at high dosages, and produces good synergistic effects when compounded with zinc salts and polyphosphates. The product is used for scale and corrosion inhibition in water treatment for petroleum, chemical, power generation, and industrial boilers, and as a chelating agent and metal cleaner in the detergent industry.
Overview and Applications
The series covers organophosphonic acids and salts that complex calcium, magnesium, iron, and other metal ions while suppressing scale-crystal growth. They serve circulating cooling water, boiler water, and oilfield injection systems and can be blended with polycarboxylates for added performance.
Technical Specifications
| Test Item | Specification |
|---|---|
| Appearance | colorless or pale yellow transparent liquid |
| Active Content, % | ≥50.0 |
| Density (20°C), g/cm³ | ≥1.25 |
| pH (1% solution) | 1.5-2.0 |
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