PBTCA (2-Phosphonobutane-1,2,4-Tricarboxylic Acid)
CAS Number: 37971-36-1
Chlorine-stable phosphonate scale inhibitor that maintains performance in chlorinated cooling water systems. Unlike HEDP/ATMP, PBTCA is not degraded by oxidizing biocides.
Technical Specifications
| pH | 2.0–3.0 |
| density | 1.25–1.30 g/mL |
| packaging | 30 kg drums or IBC |
| appearance | Pale yellow liquid |
| active content | 48–52% |
| chlorine stability | Excellent |
Applications
- Chlorinated cooling water
- Systems using oxidizing biocides
- Power plant cooling towers
- HVAC cooling systems
- Industrial recirculating water
Key Features
- Chlorine-stable — not degraded by oxidizing biocides
- Maintains scale inhibition in chlorinated systems
- Better environmental profile than HEDP
- Excellent CaCO3 threshold inhibition
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