HPMA (Hydrolyzed Polymaleic Anhydride)
CAS Number: 26099-09-2
Phosphorus-free polymer scale inhibitor and dispersant. Environmentally preferred alternative to phosphonate-based inhibitors in discharge-sensitive applications.
Technical Specifications
| pH | < 2.5 |
| density | 1.25–1.30 g/mL |
| packaging | 200 kg drums or IBC |
| appearance | Brown-red liquid |
| active content | 48–52% |
Applications
- Phosphorus-restricted discharge systems
- Cooling water treatment
- Boiler water treatment
- Desalination
- Sugar evaporators
Key Features
- Phosphorus-free — meets strict discharge limits
- Good CaCO3 and CaSO4 inhibition
- Effective dispersant for iron oxide and silt
- Biodegradable
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